Consulta: subjectFacets:"Water management"
Registros recuperados: 158
Data/hora: 13/06/2024 12:53:36

Mayordomía del agua : propuesta a partir del análisis de sus usos y riesgos en la cuenca "La Antigua", Veracruz.
Provedor de dados: 32
Autores: Román Jiménez, Ana Rita.
El manejo actual del agua en México contradice la postura oficial respectiva. Para mostrar algunos ejemplos, se analizaron los distintos usos del agua y el suelo en la cuenca La Antigua (2,326.43 Km2) en Veracruz, describiéndola como un estudio de caso. La precipitación anual estimada es abundante, su uso es continuo en las tierras de la región, y aún se considera que existen problemas de abastecimiento de agua. Los objetivos de este análisis fueron: Identificar la consistencia entre las formas actuales de uso del agua y algunas nociones básicas de lógica económica; examinar si existe escasez de agua con base en las expectativas de los usuarios; y mostrar que las inquietudes sobre los temas del agua se pueden enfrentar mejor al introducir el concepto de...
Palavras-chave: Manejo del agua; Uso múltiple; Manejo de cuencas; Unidades de paisaje; Perturbaciones ecológicas; Gestión de conflictos; Water management; Multiple land-use; Watershed management; Landscapes; Ecological disturbances; Conflict management; Forestal; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2085

Evaluation of Bayesian Networks in Participatory  Water Resources Management, Upper Guadiana Basin, Spain
Provedor de dados: 7
Autores: Zorrilla, Pedro; Department of Geodynamics, Faculty of Geological Sciences, Complutense University of Madrid, Spain; pedro.zorrilla@geo.ucm.es; Carmona, Gema; Technical University of Madrid, Department of Agricultural Economics, Spain;; Varela-Ortega, Consuelo; Technical University of Madrid, Department of Agricultural Economics, Spain;; Bromley, John; Oxford University School of Geography and the Environment, Centre for Water Research, United Kingdom;; Henriksen, Hans Jorgen; Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark;.
Stakeholder participation is becoming increasingly important in water resources management. In participatory processes, stakeholders contribute by putting forward their own perspective, and they benefit by enhancing their understanding of the factors involved in decision making. A diversity of modeling tools can be used to facilitate participatory processes. Bayesian networks are well suited to this task for a variety of reasons, including their ability to structure discussions and visual appeal. This research focuses on developing and testing a set of evaluation criteria for public participation. The advantages and limitations of these criteria are discussed in the light of a specific participatory modeling initiative. Modeling work was conducted in the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Bayesian networks; Decision support system; Evaluation; Groundwater management; Guadiana Basin; Participatory modeling; Spain; Water management; Water use conflicts.
Ano: 2010

Toward a Relational Concept of Uncertainty: about Knowing Too Little, Knowing Too Differently, and Accepting Not to Know
Provedor de dados: 7
Autores: Dewulf, Art; Public Administration and Policy Group, Wageningen University; art.dewulf@psy.kuleuven.be; Taillieu, Tharsi; Center for Work, Organizational and Personnel Psychology, Katholieke Universiteit Leuven; tharsi.taillieu@psy.kuleuven.be.
Uncertainty of late has become an increasingly important and controversial topic in water resource management, and natural resources management in general. Diverse managing goals, changing environmental conditions, conflicting interests, and lack of predictability are some of the characteristics that decision makers have to face. This has resulted in the application and development of strategies such as adaptive management, which proposes flexibility and capability to adapt to unknown conditions as a way of dealing with uncertainties. However, this shift in ideas about managing has not always been accompanied by a general shift in the way uncertainties are understood and handled. To improve this situation, we believe it is necessary to recontextualize...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive management; Ambiguity; Frames; Framing; Knowledge relationship; Multiple knowledge frames; Natural resource management; Negotiation; Participation; Social learning; Uncertainty; Water management.
Ano: 2008

Co-engineering Participatory Water Management Processes: Theory and Insights from Australian and Bulgarian Interventions
Provedor de dados: 7
Autores: Daniell, Katherine A.; Centre for Policy Innovation, The Australian National University ; katherine.daniell@anu.edu.au; White, Ian; The Fenner School of Environment and Society, The Australian National University; ian.white@anu.edu.au; Ribarova, Irina S.; University of Architecture, Civil Engineering and Geodesy; ribarova_fhe@uacg.bg; Coad, Peter; Hornsby Shire Council; PCoad@hornsby.nsw.gov.au; Rougier, Jean-Emmanuel; Lisode; Jean-Emmanuel.Rougier@lisode.com; Hare, Matthew; UN-Water Decade Programme on Capacity Development (UNW-DPC), United Nations University; hare@unwater.unu.edu; Jones, Natalie A.; School of Natural and Rural Systems Management, University of Queensland; natalie.a.j@gmail.com; Popova, Albena; University of Architecture, Civil Engineering and Geodesy; albena_krasimirova@abv.bg; Perez, Pascal; College of Asia and the Pacific, The Australian National University; Marine and Atmospheric Research Division, Australian Commonwealth Scientific and Industrial Research Organization (CSIRO) ; pascal.perez@anu.edu.au; Burn, Stewart; Land and Water, Australian Commonwealth Scientific and Industrial Research Organization  (CSIRO) ; Stewart.Burn@csiro.au.
Broad-scale, multi-governance level, participatory water management processes intended to aid collective decision making and learning are rarely initiated, designed, implemented, and managed by one person. These processes mostly emerge from some form of collective planning and organization activities because of the stakes, time, and budgets involved in their implementation. Despite the potential importance of these collective processes for managing complex water-related social&amp;#8211;ecological systems, little research focusing on the project teams that design and organize participatory water management processes has ever been undertaken. We have begun to fill this gap by introducing and outlining the concept of a co-engineering process and examining...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Co-engineering; Conflict; Multiple objectives; Negotiation; Participatory process; Planning; Water management.
Ano: 2010

Exploring Resilience and Transformability of a River Basin in the Face of Socioeconomic and Ecological Crisis: an Example from the Amudarya River Basin, Central Asia
Provedor de dados: 7
Water from the Amudarya River is a vital and strategic resource for semi-arid Uzbekistan because of its heavy reliance on irrigated agriculture. The Uzbek water management regime, however, has proven to be rather reluctant to adapt to changing environmental and socio-political conditions despite recent massive pressures caused by political, environmental, or donor-induced developments in the region.  The aim of this paper is to explore reasons for the low adaptability of the Uzbek water sector and assess implications for the resilience of the Uzbek social-ecological system (SES). By analyzing past losses of resilience as well as first attempts at institutional change in land and water management, we identify drivers as well as structural factors and...
Tipo: Peer-Reviewed Reports
Palavras-chave: Amudarya river basin; Reform; Resilience; Transformation; Uzbekistan; Water management.
Ano: 2011

Policy Entrepreneurs and Change Strategies: Lessons from Sixteen Case Studies of Water Transitions around the Globe
Provedor de dados: 7
Autores: Meijerink, Sander; Nijmegen School of Management, Radboud University Nijmegen; S.Meijerink@fm.ru.nl; Huitema, Dave; Institute for Environmental Studies (IVM), VU University Amsterdam; dave.huitema@ivm.vu.nl.
This paper focuses on the role of policy entrepreneurs in realizing water policy transitions. The central questions are to what extent have policy entrepreneurs played a role in realizing major change in water policies, who are these policy entrepreneurs, and what strategies have they used to bring about change? The policy science literature suggests that policy entrepreneurs have an "arsenal" of possible strategies for achieving change. Based on a comparative analysis of water policy changes in 15 countries around the globe and the European Union, we investigate which strategies have in practice been used by policy entrepreneurs, to what effect, and which lessons for managing water transitions we can draw from this. The comparative case analysis shows...
Tipo: Peer-Reviewed Reports
Palavras-chave: Change strategies; International comparison; Policy change; Policy entrepreneurs; Transition management; Water management.
Ano: 2010

Waypoints on a Journey of Discovery: Mental Models in Human-Environment Interactions
Provedor de dados: 7
Autores: Lynam, Timothy; CSIRO; Reflecting Society; tim.lynam@internode.on.net; Mathevet, Raphael; CNRS, UMR 5175 CEFE; Stockholm Resilience Centre; raphael.mathevet@cefe.cnrs.fr; Stone-Jovicich, Samantha; CSIRO; Samantha.Stone-Jovicich@csiro.au; Leitch, Anne; CSIRO; anne.leitch@csiro.ao; Jones, Nathalie; School of Agriculture and Food Sciences, The University of Queensland; n.jones3@uq.edu.au; Ross, Helen; School of Agriculture and Food Sciences, The University of Queensland; Helen.Ross@uq.edu.au; Du Toit, Derick; AWARD; derick@award.org.za; Pollard, Sharon; AWARD; sharon@award.org.za; Biggs, Harry; SANParks; biggs@sanparks.org; Perez, Pascal; University of Wollongong; pascal@uow.edu.au.
Although the broad concept of mental models is gaining currency as a way to explore the link between how people think and interact with their world, this concept is limited by a theoretical and practical understanding of how it can be applied in the study of human-environment relationships. Tools and processes are needed to be able to elicit and analyze mental models. Because mental models are not directly observable, it is also important to understand how the application of any tools and processes affects what is measured. Equally important are the needs to be clear on the intent of the elicitation and to design the methods and choose the settings accordingly. Through this special edition, we explore how mental models are elicited using two approaches...
Tipo: Peer-Reviewed Reports
Palavras-chave: ARDI; Consensus analysis; France; Mental models; Social representations; South Africa; Water management.
Ano: 2012

The politics of negotiation and implementation: a reciprocal water access agreement in the Himalayan foothills, India
Provedor de dados: 7
Autores: Kovacs, Eszter K.; Department of Geography, University of Cambridge, UK ; ek334@cam.ac.uk; Kumar, Chetan; Global Forest and Climate Change Program, IUCN, Washington, D.C., USA; Chetan.KUMAR@iucn.org; Agarwal, Chetan; Center for Ecology Development and Research,  India; chetan_agarwal1@hotmail.com; Adams, William M.; Department of Geography, University of Cambridge, UK; wa12@cam.ac.uk; Hope, Robert A.; School of Geography and Environment and Smith School of Enterprise and the Environment, Oxford University,  UK; robert.hope@ouce.ox.ac.uk; Vira, Bhaskar; Department of Geography, University of Cambridge, UK; University of Cambridge Conservation Research Institute (UCCRI); bv101@cam.ac.uk.
In this paper, we examine the on-the-ground realities of upstream-downstream negotiations and transactions over ecosystem services. We explore the engagement, negotiation, implementation, and postimplementation phases of a &amp;#8220;reciprocal water access&amp;#8221; (RWA) agreement between village communities and municipal water users at Palampur, Himachal Pradesh, India. We aim to highlight how external actors drove the payments for ecosystem services agenda through a series of facilitation and research engagements, which were pivotal to the RWA&amp;#8217;s adoption, and how the agreement fared once external agents withdrew. In the postimplementation period, the RWA agreement continues to be upheld by upstream communities amidst evolving, competing...
Tipo: Peer-Reviewed Reports
Palavras-chave: India; Negotiations; Payments for ecosystem services; Water management.
Ano: 2016

Urban water sustainability: framework and application
Provedor de dados: 7
Autores: Yang, Wu; Department of Environmental Science, Zhejiang University, China; wyang@zju.edu.cn; Hyndman, David W.; Department of Earth and Environmental Sciences, Michigan State University, USA; hyndman@msu.edu; Winkler, Julie A.; Department of Geography, Michigan State University, USA; winkler@msu.edu; Deines, Jillian M.; Department of Earth and Environmental Sciences, Michigan State University, USA; Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, USA; jillian.deines@gmail.com; Lupi, Frank; Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, USA; Department of Agricultural, Food, and Resource Economics, Michigan State University, USA; lupi@msu.edu; Luo, Lifeng; Department of Geography, Michigan State University, USA; lluo@msu.edu; Li, Yunkai; Department of Hydraulic Engineering, China Agriculture University, China; liyunkai@126.com; Basso, Bruno; Department of Earth and Environmental Sciences, Michigan State University, USA; basso@msu.edu; Zheng, Chunmiao; School of Environmental Science and Engineering, South University of Science and Technology of China, China; Center for Water Research, College of Engineering, Peking University, China; Department of Geological Sciences, University of Alabama, USA; czheng@pku.edu.cn; Ma, Dongchun; Beijing Water Science and Technology Institute, China; State Key Lab of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, China; mdc@bwsti.com; Li, Shuxin; Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, USA; lishu@msu.edu; Liu, Xiao; Department of Earth and Environmental Sciences, Michigan State University, USA; liuxia32@msu.edu; Zheng, Hua; State Key Lab of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, China; zhenghua@rcees.ac.cn; Cao, Guoliang; Center for Water Research, College of Engineering, Peking University, China; gliang.cao@gmail.com; Meng, Qingyi; Beijing Water Science and Technology Institute, China; mqy@bwsti.com; Ouyang, Zhiyun; State Key Lab of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, China; zyouyang@rcees.ac.cn; Liu, Jianguo; Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, USA; liuji@msu.edu.
Urban areas such as megacities (those with populations greater than 10 million) are hotspots of global water use and thus face intense water management challenges. Urban areas are influenced by local interactions between human and natural systems and interact with distant systems through flows of water, food, energy, people, information, and capital. However, analyses of water sustainability and the management of water flows in urban areas are often fragmented. There is a strong need to apply integrated frameworks to systematically analyze urban water dynamics and factors that influence these dynamics. We apply the framework of telecoupling (socioeconomic and environmental interactions over distances) to analyze urban water issues, using Beijing as a...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Environmental governance; Megacity; Spillover effects; Sustainability; Systems approach; Telecoupling; Virtual water; Water management.
Ano: 2016

The notion of sewage as waste: a study of infrastructure change and institutional inertia in Buenos Aires, Argentina and Vancouver, Canada
Provedor de dados: 7
Autores: Merlinsky, Maria G.; University of Buenos Aires; merlinsk@retina.ar; LaValle, Alicia; University of British Columbia; av_lavalle@yahoo.com; Morales, Margaret; University of British Columbia; margaret.c.morales@gmail.com; Tobias, Melina M.; University of Buenos Aires; melina.tobias@gmail.com.
The need for a radical shift to more iterative and adaptive solutions in sewage management is increasingly recognized, but our ability to achieve such a shift is constrained by inertia to change. Here, we describe planning in two metropolitan areas that are upgrading their sewage systems, based on interviews with central actors and official documents. Using new institutionalism and concentrating on changes in normative, regulative, and cognitive patterns, we analyze if obstacles to the uptake of innovations can be understood in light of how these patterns counteract institutional change. Our aim is to understand obstacles to reformers implementing a wider vision of sewage management. Our study suggests that even though both Buenos Aires and Vancouver...
Tipo: Peer-Reviewed article
Palavras-chave: Inertia to change; Sewage management; Waste vs. resource; Wastewater; Water management.
Ano: 2014

Facing the Adaptive Management Challenge: Insights from Transition Management
Provedor de dados: 7
Autores: van der Brugge, Rutger; Drift, Erasmus University Rotterdam; vanderbrugge@fsw.eur.nl; van Raak, Roel; Drift, Erasmus University Rotterdam; ICIS, University of Maastricht; vanRaak@fsw.eur.nl.
Recent research suggests that transitions toward adaptive water management regimes are needed because current water management regimes cannot  adequately respond to uncertainty. The pivotal question is how to understand and manage such transitions. The literature on adaptive management addresses this question in part, but must now move beyond the descriptive toward a prescriptive management framework. Transition management theory could help in meeting this challenge. The similarity of the theoretical starting points yet different applications offer fertile conditions for cross-pollination. We investigate three central concepts from the transition management literature for their potential contribution to adaptive management. In particular, the notions of...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive water management; Transition management; Water management.
Ano: 2007

Zebra Mussel Farming in the Szczecin (Oder) Lagoon: Water-Quality Objectives and Cost-Effectiveness
Provedor de dados: 7
Autores: Schernewski, Gerald; Leibniz-Institute for Baltic Sea Research; schernewski@eucc-d.de; Stybel, Nardine; EUCC - The Coastal Union Germany; stybel@eucc-d.de; Neumann, Thomas; Leibniz-Institute for Baltic Sea Research; thomas.neumann@io-warnemuende.de.
The Oder (Szczecin) Lagoon in the southern Baltic Sea is a heavily eutrophicated and degraded coastal ecosystem. We applied a systems approach framework to critically evaluate whether existing water-management measures achieve water-quality objectives for the river and lagoon systems. Our simulations reveal that the existing water-quality objectives for the river and the coastal waters are not sufficiently complementary. We suggest new water-quality threshold concentrations, which are in agreement with the European Water Framework Directive, and we calculate acceptable maximum nutrient loads for the Oder River. These calculations suggest that external nutrient-load reductions in the river basin alone seem insufficient to achieve good water quality in the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Baltic Sea Action Plan; Coastal ecosystem; Cost-benefit analysis; ERGOM; Eutrophication; Marginal costs; Mussel farming; Nitrogen; Oder Lagoon; Oder River; Phosphorus; Szczecin Lagoon; Water Framework Directive; Water management; Water quality; Zebra mussels (Dreissena polymorpha).
Ano: 2012

Ecology, Planning, and River Management in the United States: Some Historical Reflections
Provedor de dados: 7
Autores: Reuss, Martin; U.S. Army Corps of Engineers; Martin.A.Reuss@HQ02.USACE.ARMY.MIL.
River ecologists are also river-basin planners. However, their role in planning has developed slowly over the decades since the beginning of the 20th century. Three major factors explain this phenomenon. First, ecologists focused on plant and animal communities rather than on  broader policy issues related to land settlement and water development. Second, the federal government, and most state and local governments as well, used mainly economic criteria to justify projects. Intangible benefits, including the value of species or an aesthetically pleasing landscape, drew relatively little attention. Third, the public generally favored development, especially during the Great Depression of the 1930s. Only after World War II did the public's position shift in...
Tipo: Peer-Reviewed Reports
Palavras-chave: History; Ecology; River basins; Water management; Planning; Benefit-cost analysis; Multiobjective planning; River restoration; Geomorphology.
Ano: 2005

Water Management in Spain: the Role of Policy Entrepreneurs in Shaping Change
Provedor de dados: 7
The role played by policy entrepreneurs in preparing, initiating, and implementing water policy change in Spain over the last two decades is examined in an effort to understand how transitions in water management occur. The main questions considered are whether policy entrepreneurs can influence water policy change, and which strategies they actually adopt to promote change. John Kingdon's multiple streams framework was used to assess the ways in which policy entrepreneurs succeed in challenging the dominant agenda, mobilizing alternative policy ideas, and making use of multiple venues for initiating policy change. The data set comprises secondary documentation and interviews with state and non-state actors involved in Spanish water management. The main...
Tipo: Peer-Reviewed Reports
Palavras-chave: Policy entrepreneurs; Spain; Transitions; Water management.
Ano: 2010

Is the Jury Still Out? Toward Greater Insight in Policy Learning in Participatory Decision Processes&amp;#8212;the Case of Dutch Citizens' Juries on Water Management in the Rhine Basin
Provedor de dados: 7
Autores: Huitema, Dave; VU University Amsterdam - Institute for Environmental Studies (IVM); dave.huitema@ivm.vu.nl; Cornelisse, Corinne; VU University Amsterdam - Institute for Environmental Studies (IVM); corinne.cornelisse@ivm.vu.nl; Ottow, Bouke; Deltares; bouke.ottow@deltares.nl.
This article discusses the potential for policy learning offered by participatory processes, specifically so-called citizens' juries. We establish the need for policy learning by pointing to the increased complexity of water management tasks and challenges. A conceptual discussion subsequently distinguishes between cognitive, normative, and relational learning. The public participation literature suggests that participatory processes will contribute to various forms of learning. We assess the truth of this assumption on the basis of three case studies: citizens' juries on water management in the Dutch part of Rhine basin. We analyze whether the three forms of learning have occurred among jurors, and among policy makers. We find high levels of cognitive,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Citizen participation; Citizens' jury; Policy learning; Rhine river; Water management.
Ano: 2010

Evaluating Responses in Complex Adaptive Systems: Insights on Water Management from the Southern African Millennium Ecosystem Assessment (SAfMA)
Provedor de dados: 7
Autores: Bohensky, Erin; University of Pretoria; ebohensky@zoology.up.ac.za; Lynam, Timothy; University of Zimbabwe; tlynam@science.uz.ac.zw.
Ecosystem services are embedded in complex adaptive systems. These systems are riddled with nonlinearities, uncertainties, and surprises, and are made increasingly complex by the many human responses to problems or changes arising within them. In this paper we attempt to determine whether there are certain factors that characterize effective responses in complex systems. We construct a framework for response evaluation with three interconnected scopes or spatial and temporal domains: the scope of an impact, the scope of the awareness of the impact, and the scope of the power or influence to respond. Drawing from the experience of the Southern African Millennium Ecosystem Assessment (SAfMA), we explore the applicability of this framework to the example of...
Tipo: Peer-Reviewed Reports
Palavras-chave: Responses; Complex adaptive systems; Ecosystem services; Southern Africa; Water management; Impact; Awareness; Power.
Ano: 2005

Water Management in the Camargue Biosphere Reserve: Insights from Comparative Mental Models Analysis
Provedor de dados: 7
Autores: Mathevet, Raphael; UMR 5175 Centre d'Ecologie Fonctionnelle &amp; Evolutive, Centre National de la Recherche Scientifique ; raphael.mathevet@cefe.cnrs.fr; Lynam, Tim; CSIRO, Sustainable Ecosystems, Davies Laboratory; tim.lynam@csiro.au; Calvet, Coralie; UMR 5175 Centre d'Ecologie Fonctionnelle &amp; Evolutive, Centre National de la Recherche Scientifique ; coralie.calvet@cefe.cnrs.fr.
Mental models are the cognitive representations of the world that frame how people interact with the world. Learning implies changing these mental models. The successful management of complex social-ecological systems requires the coordination of actions to achieve shared goals. The coordination of actions requires a level of shared understanding of the system or situation; a shared or common mental model. We first describe the elicitation and analysis of mental models of different stakeholder groups associated with water management in the Camargue Biosphere Reserve in the Rh&amp;#244;ne River delta on the French Mediterranean coast. We use cultural consensus analysis to explore the degree to which different groups shared mental models of the whole system,...
Tipo: Peer-Reviewed Reports
Palavras-chave: ARDI method; Consensus analysis; Mental models; Water management.
Ano: 2011

Beyond Dry Feet? Experiences from a Participatory Water-Management Planning Case in The Netherlands
Provedor de dados: 7
Autores: Lamers, Machiel; International Centre for Integrated Assessment and Sustainable Development (ICIS) - Maastricht University; machiel.lamers@maastrichtuniversity.nl; Ottow, Bouke; Deltares; bouke.ottow@deltares.nl; Francois, Greet; K. U. Leuven, Department of Earth and Environmental Sciences, Division of Agricultural and Food Economics/Research group Work, Organisational and Personnel Psychology; greet.francois@ees.kuleuven.be; von Korff, Yorck; Lisode; yorck.von-korff@lisode.com.
Tipo: Peer-Reviewed Reports
Palavras-chave: Participatory planning; Process design; Public participation; Water management.
Ano: 2010

Realizing water transitions: the role of policy entrepreneurs in water policy change
Provedor de dados: 7
Autores: Huitema, Dave; Institute for Environmental Studies (IVM), VU University Amsterdam; dave.huitema@ivm.vu.nl; Meijerink, Sander; Nijmegen School of Management, Radboud University Nijmegen; S.Meijerink@fm.ru.nl.
This special feature aims to further our understanding of the way in which transitions occur in water management. We contend that if we want to understand such transitions, we need to understand policy change and its opposite, policy stability. These issues have attracted considerable academic attention. Our interest is, however, very specific and thereby unique: we review the role that (groups of) individuals play in the process of preparing, instigating, and implementing policy change. In this article, a review of the literature on policy change provides the basis from which we extract a set of strategies which are available to policy entrepreneurs. The questions for the rest of this special feature are first, can we detect the influence of policy...
Tipo: Peer-Reviewed Reports
Palavras-chave: Case studies; Policy change; Policy entrepreneurs; Transition management; Water management.
Ano: 2010

Designing Participation Processes for Water Management and Beyond
Provedor de dados: 7
Autores: von Korff, Yorck; Lisode; Cemagref UMR G-EAU; yorck.von-korff@lisode.com; d'Aquino, Patrick; CIRAD; daquino@cirad.fr; Daniell, Katherine A; Cemagref UMR G-EAU; Australian National University; katherine.daniell@gmail.com; Bijlsma, Rianne; Deltares; r.m.bijlsma@utwente.nl.
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Design guides; Participation; Water management.
Ano: 2010

Towards Adaptive Management: Examining the Strategies of Policy Entrepreneurs in Dutch Water Management
Provedor de dados: 7
Autores: Brouwer, Stijn; VU University Amsterdam, Institute for Environmental Studies (IVM); stijn.brouwer@ivm.vu.nl; Biermann, Frank; VU University Amsterdam, Institute for Environmental Studies (IVM); frank.biermann@ivm.vu.nl.
The growing awareness of the complexities and uncertainties in water management has put into question the existing paradigms in this field. Increasingly more flexible, integrated, and adaptive policies are promoted. In this context, the understanding of how to effect policy change is becoming more important. This article analyzes policy making at the micro level, focusing on the behavior of policy entrepreneurs, which we understand here as risk-taking bureaucrats who seek to change policy and are involved throughout the policy-change process. Policy entrepreneurs have received a certain level of attention in the adaptive co-management literature and the policy sciences in past decades. Yet, the understanding of the actions they can take to facilitate...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive management; Policy change; Policy entrepreneurs; Strategies; Water management; Windows of opportunity.
Ano: 2011

Spatial Misfit in Participatory River Basin Management: Effects on Social Learning, a Comparative Analysis of German and French Case Studies
Provedor de dados: 7
Autores: Borowski, Ilke; University of Osnabrueck; borowski@usf.uos.de; Pahl-Wostl, Claudia; University of Osnabrueck; pahl@usf.uos.de.
With the introduction of river basin management, as prescribed by the European Water Framework Directive (WFD), participatory structures are frequently introduced at the hydrological scale without fully adapting them to the decision-making structure. This results in parallel structures and spatial misfits within the institutional settings of river basin governance systems. By analyzing French and German case studies, we show how social learning (SL) is impeded by such misfits. We also demonstrate that river basin-scale institutions or actors that link parallel structures are essential for promoting river basins as management entities, and for encouraging SL between actors at the river basin scale. In the multi-scale, multi-level settings of river basin...
Tipo: Peer-Reviewed Reports
Palavras-chave: Institutions; Public participation; River basin management; Social learning; Spatial misfit; Spatial scales; Water management; WFD.
Ano: 2008

Adaptive Water Governance: Assessing the Institutional Prescriptions of Adaptive (Co-)Management from a Governance Perspective and Defining a Research Agenda
Provedor de dados: 7
Autores: Huitema, Dave; Vrije Universiteit Amsterdam - Institute for Environmental Studies; dave.huitema@ivm.vu.nl; Mostert, Erik; Delft University of Technology - Centre for River Basin Administration; E.Mostert@TUDelft.NL; Egas, Wouter; Vrije Universiteit Amsterdam - Institute for Environmental Studies; wouter.egas@ivm.vu.nl; Yalcin, Resul; University of Bonn - Center for Development Research; ryalcin@uni-bonn.de.
This article assesses the institutional prescriptions of adaptive (co-)management based on a literature review of the (water) governance literature. The adaptive (co-)management literature contains four institutional prescriptions: collaboration in a polycentric governance system, public participation, an experimental approach to resource management, and management at the bioregional scale. These prescriptions largely resonate with the theoretical and empirical insights embedded in the (water) governance literature. However, this literature also predicts various problems. In particular, attention is called to the complexities associated with participation and collaboration, the difficulty of experimenting in a real-world setting, and the politicized nature...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive governance; Bioregional perspective; Experimentation; Polycentric governance; Public participation; Water management.
Ano: 2009

Using Consensus Analysis to Assess Mental Models about Water Use and Management in the Crocodile River Catchment, South Africa
Provedor de dados: 7
Autores: Stone-Jovicich, Samantha S; CSIRO Ecosystem Sciences, Townsville; samantha.stone-jovicich@csiro.au; Lynam, Timothy; CSIRO Ecosystem Sciences, Townsville; tim.lynam@csiro.au; Leitch, Anne; CSIRO Ecosystem Sciences, Brisbane; ARC CoE Coral Reef Studies, James Cook University; anne.leitch@csiro.au; Jones, Natalie A; University of Queensland, School of Rural and Natural Systems Management; n.jones3@uq.edu.au.
The content, structure, and distribution of mental models can be elicited and measured using a variety of methods. In this article we explore a method for eliciting mental models within the context of water use and management in South Africa. This method is consensus analysis, a technique developed in cognitive anthropology.  We used it to analyze qualitative data from semistructured interviews, pilesorts, and questionnaires to test quantitatively the degree of sharing and diversity of mental models within and across social groups. The consensus analysis method focused on comparing the mental models of two key stakeholder groups in the Crocodile River catchment in South Africa, i.e., conservationists and irrigators, to better understand the level of...
Tipo: Peer-Reviewed Reports
Palavras-chave: Consensus analysis; Mental models; South Africa; Water management.
Ano: 2011

Spanning Boundaries in an Arizona Watershed Partnership: Information Networks as Tools for Entrenchment or Ties for Collaboration?
Provedor de dados: 7
Autores: Cutts, Bethany B. ; School of Life Sciences, Arizona State University; Decision Center for a Desert City, Arizona State University; bcutts@asu.edu; Larson, Elisabeth K. ; School of Life Sciences, Arizona State University; eklarson@asu.edu; Darby, Kate J.; School of Human Evolution and Social Change, Arizona State University; Kate.Darby@asu.edu; Neff, Mark; Consortium for Science, Policy and Outcomes, Arizona State University ; Mark.Neff@asu.edu; Wutich, Amber; School of Human Evolution and Social Change, Arizona State University; Amber.Wutich@asu.edu; Bolin, Bob; School of Human Evolution and Social Change, Arizona State University; Bob.Bolin@asu.edu.
The need to develop successful collaborative strategies is an enduring problem in sustainable resource management. Our goal is to evaluate the relationship between information networks and conflict in the context of collaborative groundwater management in the rapidly growing central highland region of Arizona. In this region, water-management conflicts have emerged because of stakeholders&amp;#8217; differing geographic perspectives and competing scientific claims. Using social network analyses, we explored the extent to which the Verde River Basin Partnership (VRBP), which was charged with developing and sharing scientific information, has contributed to collaboration in the region. To accomplish this, we examined the role that this stakeholder...
Tipo: Peer-Reviewed Reports
Palavras-chave: Arizona; Boundary spanning; Collaborative management; Environmental governance; Information networks; Power; Water management.
Ano: 2010

A Framework for Clarifying &amp;#8220;Participation&amp;#8221; in Participatory Research to Prevent its Rejection for the Wrong Reasons
Provedor de dados: 7
Autores: Barreteau, Olivier; Cemagref UMR G-EAU; olivier.barreteau@cemagref.fr; Bots, Pieter W. G.; Delft University of Technology; p.w.g.bots@tudelft.nl; Daniell, Katherine A; Australian National University; katherine.daniell@gmail.com.
Participatory research relies on stakeholder inputs to obtain its acclaimed benefits of improved social relevance, validity, and actionability of research outcomes. We focus here on participatory research in the context of natural resource management. Participants&amp;#8217; acceptance of participatory research processes is key to their implementation. Our first assumption is that this positive view and acceptance of participation in research processes is a public good for the whole participatory research community. We also assume that the diversity of participatory forms of research is rarely considered by potential participants when they make their decisions about whether or not to participate in a proposed process. We specifically address how to avoid...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Framing; Information flow; Participatory research; Water management.
Ano: 2010

Supporting the Constructive Use of Existing Hydrological Models in Participatory Settings: a Set of &amp;#8220;Rules of the Game&amp;#8221;
Provedor de dados: 7
Autores: Bots, Pieter W. G.; Delft University of Technology; Cemagref; p.w.g.bots@tudelft.nl; Bijlsma, Rianne; Deltares; r.m.bijlsma@utwente.nl; von Korff, Yorck; Lisode; yorck.von-korff@lisode.com; Van der Fluit, Nicolien; Buro Natuur+Water; info@buronatuurpluswater.nl; Wolters, Henk; Deltares; henk.wolters@deltares.nl.
When hydrological models are used in support of water management decisions, stakeholders often contest these models because they perceive certain aspects to be inadequately addressed. A strongly contested model may be abandoned completely, even when stakeholders could potentially agree on the validity of part of the information it can produce. The development of a new model is costly, and the results may be contested again. We consider how existing hydrological models can be used in a policy process so as to benefit from both hydrological knowledge and the perspectives and local knowledge of stakeholders. We define a code of conduct as a set of &amp;#8220;rules of the game&amp;#8221; that we base on a case study of developing a water management plan for a...
Tipo: Peer-Reviewed Reports
Palavras-chave: Case study; Conflict; Hydrological model; Institutions; Netherlands; Participation; Policy process; Water management.
Ano: 2011

Test of a microlysimeter for measurement of soil evaporation
Provedor de dados: 70
Autores: Flumignan,Danilton L.; Faria,Rogério T. de; Lena,Bruno P.
Quantifying soil evaporation is required on studies of soil water balance and applications aiming to improve water use efficiency by crops. The performance of a microlysimeter (ML) to measure soil evaporation under irrigation and non-irrigation was evaluated. The MLs were constructed using PVC tubes, with dimensions of 100 mm inner diameter, 150 mm depth and 2.5 mm wall thickness. Four MLs were uniformly distributed on the soil surface of two weighing lysimeters conducted under bare soil, previously installed at Iapar, in Londrina, PR, Brazil. The lysimeters had 1.4 m width, 1.9 m length and 1.3 m depth and were conducted with and without irrigation. Evaporation measurements by MLs (E ML) were compared with measurements by lysimeters (E L) during four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Water balance; Lysimeters; Soil water.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100009

Effect of trickle irrigation on root development of the wet bulb and 'pera' orange tree yield in the state of São Paulo, Brazil
Provedor de dados: 70
Autores: Pires,Regina C. de M; Bodine Junior,Décio; Sakai,Emílio; Villar,Heloísa L; Silva,Tonny J. A. da; Arruda,Flávio B.
The aim of this study was to evaluate the effect of different microirrigation designs on root system distribution in wet bulb region, orange orchard yield and quality of orange fruits. The experiment was installed as random blocks with five treatments and four replicates in an orchard of 'Pêra' orange trees grafted on 'Cleopatra' mandarin rootstock. The treatments consisted of: one drip line (T1), two drip lines (T2), four drip lines (T3) per planting row, microsprinkler irrigation (T4) and without irrigation (T5). Irrigation treatments favored yield and ºBrix. The treatment with a single drip line (T1) showed the greatest quantity of roots in relation to the treatments T2 and T3.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trickle irrigation; Microsprinkler irrigation; Citrus; Water management.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000600007

LOW-COST AUTOMATION OF FERTIGATION WITH PROGRAMMABLE LOGIC CONTROLLER AND GAS-FILLED SENSORS
Provedor de dados: 70
Autores: Bezerra,Ricardo de S.; Evangelista,Adão W. P.; Vellame,Lucas M.; Alves Júnior,José; Casaroli,Derblai.
ABSTRACT The aim of this study was to develop and evaluate a low-cost automation system for management of different fertigation regimes in tomato plants (Solanum lycopersicum L.) grown in a protected environment. The system consisted of an irrigation controller coupled to substrate moisture sensors and to a programmable logic controller (PLC). Four water regimes and nutrient supply levels were considered during evaluations. While developing, functional tests were performed to the automation system. Moreover, a cost-benefit analysis for the assembling of the system was carried out. As result, we noted that the automation system was efficient for controlling fertigation. It showed no problems regarding malfunction, still presenting a lower cost if compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Microcontroller; Matrix potential.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000200394

NITROGEN, PHOSPHORUS AND POTASSIUM ACCUMULATION IN WATERMELON CULTIVARS IRRIGATED WITH SALINE WATER
Provedor de dados: 70
Autores: Costa,Andréa R. F. C. da; Medeiros,José F. de.
ABSTRACT The use of saline water in agriculture has increased in the Brazilian semiarid due to low availability of good quality water for irrigated agriculture, being the selection of salt tolerant hybrids an alternative to reduce the effect of salinity on nutritional status of plants. So, the objective of this work was to evaluate the effect of salinity of irrigation water in the accumulation and partition of nutrients in the vegetable tissue of watermelon cultivars, in the region of Mossoro in the State of Rio Grande do Norte, Brazil. The treatments studied consisted of applying irrigation water with five electrical conductivities (EC1 = 0.57, EC2 = 1.36, EC3 = 2.77, EC4 = 3.86 and EC5 = 4.91 dS m-1), two watermelon cultivars and four samplings times...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrullus lanatus; Plant nutritional status; Water management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000300343

Técnicas de mineração de textos para auxiliar a construção de portfólio de tecnologias de irrigação a partir de publicações científicas.
Provedor de dados: 14
Autores: OLIVEIRA, S. R. de M.; MOURA, M. F.; TÁPIAS, L. M.; OLIVEIRA, C. T. de; BASSOI, L. H.
O trabalho aqui descrito é uma experimentação metodológica para a construção de portfólios tecnológicos de modo semi-automatizado. A metodologia envolve recuperação de informação técnico-científica e extração de conhecimento por meio de técnicas estatísticas de aprendizado de máquina para construção de portfólio de tecnologias de irrigação, a partir de publicações científicas, visando melhorar o uso sustentável da água na agricultura
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mineração de texto; Hierarquia de tópicos; Regras de associação; Manejo e conservação da água; Text mining; Association rules; Recursos hídricos.; Water resources; Water management; Water conservation.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1064158

PronaSolos: gestão do solo e da água para o desenvolvimento sustentável.
Provedor de dados: 14
Autores: CRESPOLINI, M.; NASCIMENTO, P. P.
A carência de informações detalhadas sobre os solos brasileiros é um grande entrave para o desenvolvimento do país. Apenas 5% do território nacional conta com mapeamentos em escalas adequadas, dificultando ações para a promoção do desenvolvimento sustentável. Em 2020, isso começou a mudar com a implementação das ações do Programa Nacional de Levantamento e Interpretação de Solos no Brasil (PronaSolos). Para 2021, o desafio aumentou e esta importante política pública busca o apoio de parcerias, no modelo público-privado.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Solo; Manejo do Solo; Manejo de Água; Gestão; Desenvolvimento Sustentável; Soil management; Water management; Sustainable development.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131402

Future advances and challenges.
Provedor de dados: 14
Autores: SILVA, M. S. L. da; MATTHIENSEN, A.; LIMA, J. E. F. W.
The book 6, entitled Clean Water and Sanitation: contributions of Embrapa, addresses technological solutions and research/studies on clean water and rural sanitation, developed by this institution over its 45 years. The knowledge generated, based on scientific studies, shows that it is possible to develop agriculture with the adequate use of soil and water, making it possible the integrated management of water resources. SDG 6 book provides society with technological solutions developed or adapted for different biomes, showing how to use and manage soil and water in crop production, animal husbandry and sanitation, with the aim of avoiding or minimizing their possible/potential impacts on the environment.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Manejo de Água; Desenvolvimento Sustentável; Water management; Sustainable development.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131139

Analise do desempenho da irrigacao em areas da bacia do Rio Sao Francisco.
Provedor de dados: 14
Autores: RODRIGUES, L. N.; RAMOS, M. M.; PRUSKI, F.; SILVA, D. D.; SILVEIRA, S. F. R.
bitstream/CPAC-2009/24382/1/p2003_29.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Rio Sao Francisco; Brasil.; Bacia Hidrográfica; Conservação da Água; Irrigação; Manejo de Água; Potencial Hídrico.; Brazil; Irrigation; Water conservation; Water management; Water potential.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566493

Recomendações de manejo de água e solo para o cultivo de algodão agroecológico em consórcios agroalimentares no Semiárido do Nordeste brasileiro.
Provedor de dados: 14
Autores: MEDEIROS, J. da C.; COSTA, M. M. M. N.; PEREIRA, J. R.; SABOYA, R. de C. C.; SANTIAGO, F. dos S.; BLACKBURN, R. M.
O solo é considerado elemento básico no que diz respeito a qualquer atividade agropecuária, sendo imprescindível o emprego de técnicas visando à melhoria de sua fertilidade e conservação de forma a torná-lo cada vez mais produtivo com sustentabilidade. Nos ambientes semiáridos, os solos tendem a ser mais susceptíveis a erosão, e o uso de práticas de manejo inadequadas, como queimadas, preparo do solo com grade aradora e plantio morro abaixo, vem piorando a situação. Uma das alternativas para sanar esse processo é o uso de sistemas agroecológicos, os quais buscam imitar os ecossistemas naturais, comumente considerados sustentáveis (Figura 1). No entanto, alguns aspectos em relação a manejo de água e solo carecem de informações. Para isso, elaborou-se esta...
Tipo: Folhetos
Palavras-chave: ODS; Algodão; Manejo do Solo; Conservação da Água; Conservação do Solo; Controle da Erosão; Produção Orgânica; Fertilidade do Solo; Desenvolvimento Sustentável; Cotton; Soil management; Water management; Agricultural conservation practice; Erosion control; Organic production; Arid soils; Sustainable development.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1148733

Water management and sanitation in rural communities.
Provedor de dados: 14
Autores: RIBEIRO, P. E. de A.; SILVA, M. S. L. da; COELHO, E. F.; BARROS, L. C. de; SIMOES, W. L.; MARMO, C. R.; GUILHERME, L. C.; CORREA, R. de O.; OTENIO, M. H.; TAVARES-DIAS, M.; PAULA, V. R. de; BERNARDES FILHO, R.
This chapter describes agricultural practices, products, processes, methodologies and services (trainings and consulting) that may contribute to target 6.b of Sustainable Development Goal 6 (SDG 6), aiming at supporting and strengthening water management and sanitation in the rural communities.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Desenvolvimento territorial; Manejo animal.; Pratica agrícola; Água; Comunidade Rural; Saneamento Rural; Poluição da Água; Produção Animal; Desenvolvimento Sustentável; Rural development; Water management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131155

Conservation of ecosystems and water supply.
Provedor de dados: 14
Autores: PRADO, R. B.; MONTEIRO, J. M. G.; BARROS, L. C. de; PARRON, L. M.; SILVA, M. S. G. M. e; RIBEIRO, P. E. de A.; FIGUEIREDO, R. de O.
This chapter presents an overview of anthropogenic pressures on water resources and their ecosystems, some strategies for conserving these resources for water production, as well as a picture of Embrapa's actions with the potential to contribute to the achievement of the target 6.6 of the SDG 6: protect and restore water-related ecosystems, including mountains, forests, wetlands, rivers, aquifers and lakes by 2020. The technological solutions that Embrapa research has generated are related to the reduction of the erosive processes and the sedimentation of the water bodies; planning, monitoring and valuation of ecosystem services, with emphasis on water resources; to conservation practices with consequences for maintaining the quantity and quality of water,...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Manejo de Água; Recurso Hídrico; Ecossistema; Water management; Water resources; Ecosystems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131137

Práticas de manejo de solo e água para agroecossistemas de caprinos leiteiros do Semiárido do Nordeste brasileiro.
Provedor de dados: 14
Autores: SILVA, M. S. L. da; OLIVEIRA NETO, M. B. de; SILVA, A. F.; FERNANDES, F. E. P.; SOUZA, S. L. de; OLIVEIRA, L. S.; FELISBERTO, N. R. de O.; ARAUJO FILHO, J. C. de; PARAHYBA, R. da B. V.; SILVA, T. D. S. da; LIMA, L. M. J. M.; LIMA, R. A.
A presente pesquisa teve como objetivo realizar diagnóstico participativo de agroecossistemas com criação de caprinos leiteiros, para recomendação de práticas de uso e manejo do solo e da água, para sistemas de produção em Arranjos Produtivos Locais de leite caprino do Semiárido de Pernambuco e da Paraíba, considerando o conhecimento tradicional e técnico-científico local da capacidade de uso das terras e do uso e da qualidade da água. O estudo primou pela resiliência socioecológica desses agroecossistemas às adversidades do clima Semiárido, contribuindo, assim, com a gestão sustentável de núcleos familiares da caprinocultura leiteira do Semiárido do Nordeste brasileiro.
Tipo: Folhetos
Palavras-chave: Agroecossistema; Selo ODS; Manejo do Solo; Manejo de Água; Sistema de Produção; Caprino; Soil management; Water management; Agroecosystems; Product system; Goats.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1148982

Tensiometria aplicada no manejo da irrigação por pivô-central na cultura do trigo.
Provedor de dados: 14
Autores: AZEVEDO, J. A. de; SILVA, D. B. da; ANDRADE, J. M. V. de; ANDRADE, L. M. de.
bitstream/CPAC-2010/23075/1/rectec-39.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Brasil.; Cerrado; Irrigação; Irrigação por Pivô Central; Pivô Central; Tensiômetro; Trigo; Triticum Aestivum.; Irrigation; Wheat.; Water management.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566460

Flooded rice in tropical Brazil.
Provedor de dados: 14
Autores: SANTOS, A. B. dos; SILVA, M. A. S. da; STONE, L. F.; HEINEMANN, A. B.
Flooded rice in tropical Brazil. Water management. Nitrogen management.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Arroz Irrigado; Oryza Sativa; Clima Tropical; Manejo de Água; Nitrogênio; Rice; Water management; Nitrogen; Climatic zones.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137156

Como evitar perdas de água na irrigação de fruteiras.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
bitstream/item/103187/1/JFrutairrigacao.jpg
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Fruit.; Irrigacao; Recurso hidrico; Agua; Fruta; Fruticultura; Conservacao da agua; Irrigation; Water; Water resources; Irrigation water; Water management; Horticulture; Water conservation.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/987733

Contribuicao hidrica do cerrado para as grandes bacias hidrograficas brasileiras.
Provedor de dados: 14
Autores: LIMA, J. E. F. W.; SILVA, E. M. da.
bitstream/CPAC-2009/24358/1/p2002_21.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: ECAGUA100; Brasil; Savanna.; Bacia Hidrográfica; Cerrado; Manejo de Água; Potencial Hídrico; Recurso Hídrico.; Brazil; Water potential; Water resources; Water management; Watersheds.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567621

Procedimentos para determinação do Índice de Dissipação de Erosividade (IDE).
Provedor de dados: 14
Autores: HERNANI, L. C.; GONÇALVES, A. O.; ORTOLAN, B.; SOUZA, E. F. de.
Este documento tem como propósito disponibilizar os meios necessários e procedimentos recomendados para calcular o IDE em microbacias, ou seja, bacias hidrográficas de pequeno porte (de primeira ordem), a partir da experiência vivida no âmbito da Rede de Pesquisa SoloVivo liderada pela Embrapa Solos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Erosão do Solo; Microbacia; Bacia Hidrográfica; Manejo do Solo; Manejo de Água; Soil erosion; Basins; Watersheds; Soil management; Water management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123341

Integrated water resources management.
Provedor de dados: 14
Autores: SCHULER, A. E.; LIMA, J. E. F. W.; CRUZ, M. A. S.
bitstream/item/222411/1/SDG-6-cap-5-2020.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Manejo de Água; Water management.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131136

Diagnóstico hidrossedimentológico da Bacia do Rio Piquiri.
Provedor de dados: 14
Autores: LIMA, J. E. F. W.; LOPES, W. T. A.; SILVA, E. M. da; VIEIRA, M. R.
RESUMO: O conhecimento do comportamento hidrossedimentológico de uma bacia hidrográfica é fundamental para a adequada gestão e uso de seus recursos hídricos. Este traballho objetivou realizar, a partir dos dados hidrossedimentométricos da Bacia do Rio Piquiri, um diagnóstico sobre o seu comportamento hidrossedimentológico. Utilizando os dados fluviométricos e hidrossedimentométricos do banco de dados Hidro, sob gestão da Agência Nacional das Águas - ANA, foi estimado o potencial para produção ou deposição de sedimentos de cada trecho da bacia, aplicando o procedimento de balanço de massa. Foram identificados três trechos onde ocorre deposição de sedimentos na bacia: entre as estações Porto Carriel e Porto Guarani, no Rio Piquiri; entre as estações Porto...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Manejo da água; Sediment.; Bacia Hidrográfica; Erosão Hídrica; Hidrologia; Sedimento.; Qualidade da Água; Recurso Hídrico; Hydrology; Water quality; Water resources; Watersheds.; Water management; Water erosion.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569087

Caracterização preliminar dos recursos hídricos superficiais da APA de Cafuringa, DF.
Provedor de dados: 14
Autores: LIMA, J. E. F. W.; OLIVEIRA-FILHO, E. C. de; SILVA, E. M. da; FARIAS, M. F. R.
ABSTRACT: The Cafuringa's environmental protection area is considered one of the last natural area of the Brazilian Federal District. The lack of hydrological data and information represent a risk for the preservation of this area. So, the main objective of this work is to present a preliminary survey about the quantity and the quality of the water resources available in this region to support its appropriate management.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Área de Proteção Ambiental; Cafuringa; Water availability; Hidrography.; Cerrado; Disponibilidade de Água; Hidrografia; Manejo de Água; Recurso Hídrico.; Qualidade da Água; Environmental protection; Water quality; Water management; Water resources.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568174

Utilização do software IrrigaFácil para manejo de irrigação.
Provedor de dados: 14
Autores: ALBUQUERQUE, P. E. P. de; FARIA, C. M. de; COELHO, E. A.
Levando em conta a gestão dos recursos hídricos que preconiza a necessidade de usar a água como insumo de modo racional na agricultura irrigada, esta publicação trata do tutorial do programa computacional IrrigaFácil. Infelizmente, a consciência sobre o manejo da irrigação ainda não está satisfatoriamente introduzida na agricultura irrigada brasileira. Afora o manejo da irrigação em si, ainda se observam muito desperdício de água, má uniformidade de distribuição da água e mau funcionamento hidráulico dos vários sistemas de irrigação implantados. Focando apenas o manejo da irrigação, o programa computacional IrrigaFácil foi criado com a finalidade de gerar dados preditos confiáveis de evapotranspiração de referência (ETo), a partir de dados de série...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Irrigação; Programa de computador; Manejo de água; Base de dados; Irrigation; Water management; Databases.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/919820

Diagnóstico do meio físico dos reassentamentos rurais da Usina Hidrelétrica de Manso, Município de Chapada dos Guimarães, Estado de Mato Grosso.
Provedor de dados: 14
Autores: CALDERANO FILHO, B.; ANDRADE, A. G. de; MANZATTO, C. V.; CALDERANO, S. B.; DONAGEMMA, G. K.; MIRANDA, E. A.; PEREIRA, L. A.; MELLO, J. B. de; COSTA, M. R. da; SOUZA, J. S. de.
O diagnóstico do meio físico dos reassentamentos rurais no entorno do reservatório da usina hidrelétrica de Manso, no município de Chapada dos Guimarães, teve o objetivo de caracterizar e analisar a estrutura da paisagem, incluindo aspectos físicos e ecológicos, para o planejamento e manejo conservacionista da área. Os procedimentos utilizados envolveram a geração de dados básicos no campo, por meio de mapeamentos temáticos do meio físico, sendo produzidos mapas de solos, relevo, declividade e uso da terra, incluindo vegetação, hidrografia e avaliação da aptidão agrícola das terras. Os resultados produzidos fornecem subsídios básicos para o planejamento e manejo adequado dos recursos solo e água e contribuem para a elaboração do plano de manejo...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Manejo do Solo; Erosão do Solo; Recurso do Solo; Manejo de Água; Soil management; Soil erosion; Soil resources; Water management.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1108236

MANEJO e conservação de solo e água: o meio ambiente agradece.
Provedor de dados: 14
Tipo: Folders
Palavras-chave: Manejo de Água; Manejo do Solo; Conservação da Água; Conservação do Solo; Water management; Soil management; Water conservation; Soil conservation.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/985951

Essais de decontamination des huitres Crassostrea gigas en bassin par renouvellement et circulation de l''eau
Provedor de dados: 5
Autores: Faury, Nicole; Masson, Daniel; Ratiskol, Jacqueline.
The germs decreasing of artificially contaminated oysters Crassostrea gigas has been studied in experimental tanks similar to a shellfish depuration plant, without any chemical or physical water treatment. The oyster were treated by three different water management pattern, compared to a control tank and the germs decreasing studied by MPN method of fecal Coliforms and Streptococus. As a result: 1) it appaears somewhat difficult to conclude in this first attempt about the most efficient treatment. 2) the most important factor in shellfish depuration working is obviously the physiological activity (and stage) of the animals.
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Methodology; Raceway culture; Recirculating systems; Water management; Oyster fisheries; Marine molluscs; Shellfish; Tanks; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1611.pdf

Irrigation and Water Management
Provedor de dados: 18
Autores: Jensen, Marvin E.; Erie, Leonard J.
Tipo: Book Section
Palavras-chave: Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1971
URL: http://eprints.nwisrl.ars.usda.gov/720/1/189.pdf

Center-pivot irrigation system for independent site-specific management of water and chemical application
Provedor de dados: 18
Autores: King, B.A.; Wall, R.W.; Karksy, T.F.
Tipo: Article
Palavras-chave: Water management; Site-specific irrigation.
Ano: 2009
URL: http://eprints.nwisrl.ars.usda.gov/1313/1/1290.pdf

Polyacrylamide treatments for reducing seepage in soil-lined reservoirs: A field evaluation
Provedor de dados: 18
Autores: Lentz, R.D.; Kincaid, D.C.
Irrigation water supplies are becoming limited, and there is a need to extend the usefulness of current water resources. Previous laboratory studies demonstrated that certain water-soluble polyacrylamide solution (WSPAM) and cross-linked PAM granule (XPAM) treatments effectively reduced infiltration into soils. We evaluated the efficacy of these treatments for reducing water seepage losses in an unlined irrigation reservoir. Five treatments were applied to plots on the lower side slopes of a reservoir basin before it was filled in April 2001: controls; 0.016 kg m -2 WSPAM (1000 mg L -1 solution); 0.2 kg m -2 XPAM + 0.13 kg m -2 NaCl; 0.4 kg m -2 XPAM + 0.13 kg m -2 NaCl; and 0.8 kg m -2 XPAM only. Ring-cylinder seepage meters installed in each experimental...
Tipo: Article
Palavras-chave: Water management.
Ano: 2008
URL: http://eprints.nwisrl.ars.usda.gov/1272/1/1249.pdf

Irrigation Scheduling - New Technology for Water Management
Provedor de dados: 18
Autores: Jensen, Marvin E.
Tipo: Article
Palavras-chave: Irrigation scheduling; Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1978

Irrigation Scheduling for Optimum Water Management
Provedor de dados: 18
Autores: Lord Jr, J.M.; Jensen, M.E.
Tipo: Conference or Workshop Item
Palavras-chave: Irrigation scheduling; Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/995/1/311.pdf

On-Farm Water Management: Irrigation Scheduling for Optimal Water Use
Provedor de dados: 18
Autores: Jensen, Marvin E.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Irrigation scheduling; Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1976

Evaluation of neural network modeling to predict non-water-stressed leaf temperature in wine grape for calculation of crop water stress index
Provedor de dados: 18
Autores: King, B.A.; Shellie, Krista.
Precision irrigation management in wine grape production is hindered by the lack of a reliable method to easily quantify and monitor vine water status.  Mild to moderate water stress is desirable in wine grape for controlling vine vigor and optimizing fruit yield and quality. A crop water stress index (CWSI) that effectively monitors plant water status has not been widely adopted in wine grape because of the need to measure well-watered and non-transpiring leaf temperature under identical environmental conditions. In this study, we calculated a daily CWSI for the wine grape cultivars Syrah and Malbec (Vitis vinifera L.) by estimating well-watered leaf temperature with an artificial neural network (NN) model and non-transpiring leaf temperature based on the...
Tipo: Article
Palavras-chave: Water management.
Ano: 2016
URL: http://eprints.nwisrl.ars.usda.gov/1611/1/1568.pdf

Groundwater use on southern Idaho dairies
Provedor de dados: 18
Autores: Bjorneberg, D.L.; King, B.A.
Dairy production has expanded in irrigated areas of the western and southwestern US, potentially competing for limited water supplies. Groundwater withdrawal was measured for two years on six dairy farms with 660 to 6400 milk cows in southern Idaho. Groundwater withdrawal was calculated on an equivalent cow basis to account for relative differences in the numbers of milk cows, dry cows, heifers and calves on each farm. Average groundwater withdrawal from each dairy varied from 110 to 250 L/d/eq. cow with an overall average of 190 L/d/eq. cow for the six farms. On an area basis, groundwater withdrawal varied from 180 to 880 mm/y on each farm with a mean of 530 mm/y. Estimated annual irrigation requirements in southern Idaho are 510 mm for spring barley, 590...
Tipo: Article
Palavras-chave: Animal; Water management.
Ano: 2014
URL: http://eprints.nwisrl.ars.usda.gov/1531/1/1489.pdf

Drinking Water Treatment Residuals:  A Reveiw of Recent Uses
Provedor de dados: 18
Autores: Ippolito, J.A.; Barbarick, K.A.; Elliot, H.A.
Coagulants such as alum, [Al2(SO4)3X14H2O], ferric chloride [FeCl3], or ferric sulfate [Fe2(SO4)3] are commonly used to remove particulate and dissolved constituents from water supplies in the production of drinking water.  The resulting waste product, called water-treatment residuals (WTR), contains precipitated Al and Fe oxyhydroxides resulting in a strong affinity for anionic species.  Recent research has focused on using WTR as cost-effective materials to reduce soluble phosphorus (P) in soils, runoff, and land-applied organic wastes (manures and biosolids).  Studies show P adsorption by WTR to be fast and nearly irreversible, suggesting long-term stable immobilization of WTR-bound P.  Because excessive WTR application can induce P deficiency in crops,...
Tipo: Article
Palavras-chave: Amendments; Soil; Water management.
Ano: 2011
URL: http://eprints.nwisrl.ars.usda.gov/1407/1/1377.pdf

Comparison of sprinkler droplet size and velocity measurements using a laser precipitation meter and photographic method
Provedor de dados: 18
Autores: King, B.A.; Winward, T.W.; Bjorneberg, D.L.
Kinetic energy of water droplets has a substantial effect on development of a soil surface seal and infiltration rate of bare soil. Methods for measuring sprinkler droplet size and velocity needed to calculate droplet kinetic energy have been developed and tested over the past 50 years, each with advantages, disadvantages, and limitations. A laser precipitation meter and photographic method were used to measure droplet size and velocity from an impact sprinkler at three pressures and one nozzle size. Significant differences in cumulative volume drop size distributions derived from the two measurement methods were found, especially at the highest operating pressure. Significant differences in droplet velocities were found between measurement methods as...
Tipo: Conference or Workshop Item
Palavras-chave: Sprinkler irrigation; Soil water (soil moisture); Water management.
Ano: 2013
URL: http://eprints.nwisrl.ars.usda.gov/1577/1/1533.pdf

Water quality and surfactant effects on the water repellency of a sandy soil
Provedor de dados: 18
Autores: Lehrsch, G.A.; Sojka, R.E.
Differences in irrigation water quality may affect the water repellency of soils treated or untreated with surfactants.  Using simulated irrigations, we evaluated water quality and surfactant application rate effects upon the water repellency of a Quincy sand (Xeric Torripsamment).  We used a split plot design with two irrigation water qualities, three surfactant application rates, two irrigations, and twelve sampling depths as fixed effects, with four replications.  Each water quality x rate x irrigation combination was a main plot and depth was a repeated-measures subplot.  A slightly water repellent Quincy soil (average water drop penetration time, WDPT, of 2.5 s) was packed in 25-mm lifts (or layers) to a bulk density of 1.6 Mg/cubic m into 0.15-m-high...
Tipo: Article
Palavras-chave: Sprinkler irrigation; Water management.
Ano: 2011
URL: http://eprints.nwisrl.ars.usda.gov/1430/1/1400.pdf

Erosion: Irrigation-induced
Provedor de dados: 18
Autores: Lehrsch, G.A.; Lentz, R.D.; Bjorneberg, D.L.; Sojka, R.E.
Soil can be eroded by sprinkler or surface irrigation. Once sprinkler droplet kinetic energy detaches soil, overland flow transports the sediment downslope and off-site. Protecting the soil surface, increasing sprinkler wetted diameters, and tilling to increase infiltration and thereby lessen overland flow are effective control measures. Runoff minimization and management are key to reducing erosion induced by either sprinkler or surface irrigation. Slowing furrow stream velocities with mulch or crop residues reduces the flow’s hydraulic shear and, in turn, detachment of soil from furrow wetted perimeters. Stabilizing surface soil with, for example, polyacrylamide, bio-polymers, or whey keeps soil in place and helps maintains acceptable water quality in...
Tipo: Article
Palavras-chave: Sprinkler irrigation; Erosion; Water management.
Ano: 2014

Potato cultivar response to seasonal drought patterns
Provedor de dados: 18
Autores: Stark, J.C.; Love, S.; King, B.A.; Marshall, J.M; Bohl, W.H.; Salaiz, T.
The ability to minimize potato yield and quality losses due to drought can be greatly improved by understanding the relative responses of different cultivars to seasonal variations in water supply. To address this need, we initiated a two year field experiment to determine the responses of the six potato cultivars to different seasonal drought patterns, including  1) full season irrigation at 100% ET, 2) irrigation at 100% ET terminated during late bulking , 3) full season irrigation at 70% ET , 4) irrigation at 70% ET terminated during late bulking , and 5) a gradual reduction in irrigation from 100% ET during tuber initiation through early bulking, to 70% ET during mid-bulking, and 50% ET through late bulking. GemStar Russet and Ranger Russet, two...
Tipo: Article
Palavras-chave: Potato; Water management.
Ano: 2013
URL: http://eprints.nwisrl.ars.usda.gov/1503/1/1466.pdf

Nitrogen placement, row spacing, and water management for furrow-irrigated field corn
Provedor de dados: 18
Autores: Lehrsch, G.; Sojka, R.; Westermann, D.
Banding and sidedressing nitrogen (N) fertilizer on a never-irrigated side of a row of corn  (Zea mays L.) were hypothesized to maintain yield and decrease nitrate leaching. In a two—year  ?eld study on a Portneuf silt loam (Durinodic Xeric Haplocalcid) in southern Idaho, we  evaluated effects on yield and N uptake of 1) urea placement (broadcast pre-plant vs. band at  planting), 2) row spacings (30-in vs. an offset 22—in spacing in which every pair of 22-—in rows  was positioned close to a furrow rather than each row on a bed center), and 3) water  management. Our water management, termed irrigated furrow positioning, consisted of every-  second furrow irrigation in which we applied water to either a) the same or b) the Opposite side  of the row with...
Tipo: Conference or Workshop Item
Palavras-chave: Corn / maize; Water management; Mass Import - autoclassified (may be erroneous).
Ano: 2008
URL: http://eprints.nwisrl.ars.usda.gov/1267/7/1243.pdf

Water management practices: Irrigated Cropland
Provedor de dados: 18
Autores: Eisenhauer, D.E.; Bjorneberg, D.; Westermann, D.
Tipo: Book Section
Palavras-chave: Water management; Mass Import - autoclassified (may be erroneous).
Ano: 2006
URL: http://eprints.nwisrl.ars.usda.gov/831/1/1199.pdf

Aluminum-based water treatment residual use in a constructed wetland for capturing urban runoff phosphorus: Column study
Provedor de dados: 18
Autores: Ippolito, J.A.
Aluminum-based water treatment residuals (Al-WTR) have a strong affinity to sorb phosphorus.  In a proof-of-concept greenhouse column study, Al-WTR was surface-applied at 0, 62, 124, and 248 Mg/ha to 15 cm of soil on top of 46 cm of sand; Al-WTR rates were estimated to capture 0, 10, 20, and 40 years of phosphorus from an urban watershed entering an engineered wetland in Boise, Idaho, USA.  Creeping red fescue (Festuca rubra) was established in all columns; one set of columns received no Al-WTR or plants.  After plant establishment, once per week over a 12-week period, ~1.0 pore volumes of ~0.20 mg phosphorus/L was added to each column.  Infiltration rates were measured, leachate was collected and analyzed for soluble phosphorus, and fescue yield,...
Tipo: Article
Palavras-chave: Chemistry; Water management; Water quality.
Ano: 2015
URL: http://eprints.nwisrl.ars.usda.gov/1605/1/1563.pdf

Drought tolerance selection of sugarbeet hybrids
Provedor de dados: 18
Autores: Tarkalson, D.D.; Eujayl, Imad A.; Beyer, Werner; King, B.A.
Increased water demands and drought have resulted in a need to indentify crop hybrids that are drought tolerant, requiring less irrigation to sustain yields. This study was conducted to assess differences in drought tolerance among a group of genetically diverse sugarbeet hybrids. The study was conducted over three consecutive growing seasons (2008-2010) at the USDA Northwest Irrigation and Soils Research Laboratory in Kimberly, Idaho on a Portneuf silt loam soil (coarse-silty, mixed, superactive, mesic Durinodic Xeric Haplocalcid). Drought tolerance was evaluated by measuring sucrose yield production of six breeding hybrids of Klein Wanzlebener Saatzucht (KWS SAAT AG) and one commercial hybrid (Betaseed Inc.) under six water input treatments. Hybrid...
Tipo: Article
Palavras-chave: Dryland crops; Sugarbeet; Water management.
Ano: 2014
URL: http://eprints.nwisrl.ars.usda.gov/1578/1/1534.pdf

On-Farm Water Management: Irrigation Scheduling for Optimal Water Use
Provedor de dados: 18
Autores: Jensen, Marvin E.
Tipo: Conference or Workshop Item
Palavras-chave: Irrigation scheduling; Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1976

Managing Runoff Water Quality From Recently Manured, Furrow Irrigated Fields
Provedor de dados: 18
Autores: Lentz, R.D.; Westermann, D.T.
Nutrient losses in furrow irrigation runoff potentially increase when soils are amended with manure. We evaluated the effect of tillage, water soluble polyacrylamide (WSPAM) and irrigation management on runoff water quality during the first furrow irrigation on a calcareous silt loam soil, which had received 45 Mg/ha (dry wt.) dairy manure applied in the fall. In Exp. 1 the amended soil was rototilled and irrigated that fall; furrow inflows were either treated with 10 mg/L WSPAM injected into furrow inflows only during furrow advance (Fall-WSPAM), or were untreated (Fall-Control). In Exp. 2 the first irrigation on the amended soil was delayed until the following spring and treatments included rototilled WSPAM (Spring-WSPAM) and untreated rototilled...
Tipo: Article
Palavras-chave: Water management; Water quality; Furrow irrigation.
Ano: 2010
URL: http://eprints.nwisrl.ars.usda.gov/1384/1/1359.pdf

Furrow Intake Rates and Water Management
Provedor de dados: 18
Autores: Kemper, W.D.; Ruffing, B.J.; Bondurant, J.A.
Tipo: Article
Palavras-chave: Infiltration; Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1982
URL: http://eprints.nwisrl.ars.usda.gov/385/1/481.pdf

Oilseed Radish Effects on Soil Structure and Soil Water Relations
Provedor de dados: 18
Autores: Lehrsch, G.A.; Gallian, J.J.
Oilseed radish (Raphanus sativus spp. oleifera) reduces sugarbeet cyst nematode (Heterodera schachtii) populations. Fall-incorporated radish biomass may also increase the yield and quality of subsequently grown sugarbeet (Beta vulgaris L.) by improving soil physical and hydraulic properties. This field study determined radish effects on nearsurface soil aggregate stability, water-stable aggregate size distribution, bulk density, and field-saturated water content, as well as infiltration and hydraulic conductivity measured at water supply potentials of ‑40, ‑20, and +0 mm H2O. In 2003 and 2004 in Twin Falls, ID, radish were grown in a Portneuf silt loam (Durinodic Xeric Haplocalcid) for about 10 weeks in the fall, then incorporated later that fall by...
Tipo: Article
Palavras-chave: Water management; Water.
Ano: 2010
URL: http://eprints.nwisrl.ars.usda.gov/1381/1/1357.pdf

Irrigation Water Management for the Next Decade
Provedor de dados: 18
Autores: Jensen, M.E.
Tipo: Conference or Workshop Item
Palavras-chave: Water management; Mass Import - autoclassified (may be erroneous).
Ano: 1978
URL: http://eprints.nwisrl.ars.usda.gov/1012/3/429.pdf

Lakes water quality monitoring and management programme in developing countries
Provedor de dados: 20
Autores: Mutia, Silas M.
Developing Countries face an array of traditional and modern lakes water quality problems ranging from faecal contamination to toxic chemicals. Moreover, they do so in an economic environment that is severely restricted, an institutional environment which is often poorly structured, and for which the modern scientific knowledge base is frequently poorly understood and applied. Agencies in many developing countries recognize this as major impediment to sustainable development, especially as water quality has become one of the leading economic issues for the purposes of development and investment. Generally water quality programmes tend to suffer from traditional approaches, both of methodology and legal/administrative. The Consequence is that many...
Tipo: Proceedings Paper
Palavras-chave: Water quality; Water resources; Water management; Resource development; Water pollution; Environmental monitoring; Inland waters; Water reservoirs; Freshwater lakes; Developing countries; Water quality; Water resources; Resource development; Environmental monitoring; Water management; Water pollution; Inland waters; Water reservoirs; Developing countries; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_8325; Http://aims.fao.org/aos/agrovoc/c_28018; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_8320; Http://aims.fao.org/aos/agrovoc/c_8321; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_8324; Http://aims.fao.org/aos/agrovoc/c_2222.
Ano: 2006
URL: http://hdl.handle.net/1834/1474

An Approach to Sustainable Water Management Using Natural Resource Accounts: the Use of Water, the Economic Value of Water, and Implications for Policy
Provedor de dados: 20
Autores: Lange, G.M.
A Natural Resource Accounting project is currently underway to document the status of the nation’s resources and their current economic use. Accounts for water constitute a major component of the Natural Resource Accounts (NRA) since water is the limiting resource for economic development in Namibia, as it is for much of Southern Africa. The NRA include both stock and use accounts for water, as well as related environmental statistics. In order to design development strategies that are sustainable over the long run, it is essential to know the full value of this scarce resource. This is especially important for a resource like water which is used throughout the economy and must be managed to achieve sometimes conflicting economic, social, and political...
Tipo: Report
Palavras-chave: Water management.
Ano: 1997
URL: http://hdl.handle.net/1834/694

Policies drain the North China Plain: Agricultural policy and groundwater depletion in Luancheng County, 1949-2000
Provedor de dados: 31
Autores: Kendy,   Eloise; Molden,   David J.; Steenhuis,   Tammo S.; Liu,   Changming; Wang,   Jinxia.
The report examines the relationships between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000. To systematically address these relationships, we use a comprehensive water-balance approach. Our results indicate that a single, longstanding policy-that of using groundwater to meet the crop-water requirements not supplied by precipitation-is responsible for the steady rate of groundwater decline.
Tipo: Report
Palavras-chave: Agricultural production; Groundwater; Aquifers; Water shortage; Irrigation efficiency; Agricultural policy; Crop production; Wastewaters; Water management; Hydrology; Economic development; Crop yield; Cotton; Wheat; Sprinkler irrigation; Water conservation; Water use efficiency; Pumping; Water balance; Vegetables; Rural economy; Irrigated framing; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/44560

Food security and sustainable agriculture in India: The water management challenge
Provedor de dados: 31
Autores: Kumar,   M. Dinesh.
Tipo: Working or Discussion Paper
Palavras-chave: Sustainable agriculture; Food security; Water management; Water scarcity; Groundwater depletion; Waterlogging; Salinity; Soil degradation; Water use efficiency; Productivity; Equity; Irrigation water; Pricing; Agricultural and Food Policy; Agricultural Finance; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/92666

Water management development and agriculture in Syria
Provedor de dados: 31
Autores: Haddad,   George; Szeles,   Ivett; Zsarnoczai,   J. Sandor.
Irrigated agriculture has increased steadily in Syria over the last decades, almost doubling since 1985. This mounting pace has responded to the nation’s food security policy objectives to satisfy the food production needs of an increasing population that features one of the largest growth rates in the world, namely 3,50 percent in 1985 and still 3,39 percent in 2007. Total expenditures for irrigated agriculture accounted for almost 70 percent of all expenditures in agriculture. Sustainable irrigation water policies aimed at increasing the efficiency of water use in agriculture and at conserving water resources by reducing future consumption. The Euphrates River is 2.800 km long and its middle traverses a wide floodplain in Syria, where it is used...
Tipo: Journal Article
Palavras-chave: Water utilisation; Water management; Modern irrigation technologies; Benefits of agricultural sector; Governmental supports; Total Renewable Water Resources (TRWR); Crop Production/Industries; Environmental Economics and Policy; Farm Management; Risk and Uncertainty.
Ano: 2008
URL: http://purl.umn.edu/47546

Conjunctive water management in the Rechna Doab: An overview of resources and issues
Provedor de dados: 31
Autores: Jehangir,   Waqar Ahmed; Qureshi,   Asad Sarwar; Ali,   Nazim.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Conjunctive use; Surface water; Groundwater; Aquifers; Pumping; Water quality; River basins; Productivity; Canals; Waterlogging; Salinity; Land resources; Land use; Crop production; Rice; Wheat; Cotton; Sugarcane; Crop Production/Industries; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92704

MCDM Farm System Analysis for Public Management of Irrigated Agriculture
Provedor de dados: 31
Autores: Gomez-Limon,   Jose Antonio; Berbel,   Julio; Arriaza Balmón,   Manuel.
In this paper we present a methodology within the multi-criteria paradigm to assist policy decision-making on water management for irrigation. In order to predict farmers' response to policy changes a separate multi-attribute utility function for each homogeneous group, attained applying cluster analysis, is elicited. The results of several empirical applications of this methodology suggest an improvement of the ability to simulate farmers' decision-making process compared to other approaches. Once the utility functions are obtained the policy maker can evaluate the differential impacts on each cluster and the overall impacts in the area of study (i.e. a river basin) by aggregation. On the empirical side, the authors present some studies for different...
Tipo: Conference Paper or Presentation
Palavras-chave: Multi-attribute utility theory; Water management; Irrigation; Policy analysis; Agricultural and Food Policy; Q25; Q15; C61.
Ano: 2005
URL: http://purl.umn.edu/24676

Water pricing options for the Middle Drâa River Basin in Morocco
Provedor de dados: 31
Autores: Heidecke,   Claudia; Kuhn,   Arnim; Klose,   Stephan.
This paper discusses the possible effects of various ways of charging for water in an integrated modeling framework adapted to the Drâa River Basin in southeastern Morocco. Declining surface water availability in the basin has led to an increase in groundwater use for irrigation in recent decades, even though groundwater extraction is more costly than using surface water. The trade-off between the pricing of ground and surface water is discussed based on recursive-dynamic simulations over a ten-year period. The results identify groundwater pricing as an economically and environmentally favorable option, assuming that revenues from water charges are redistributed to farmers.
Tipo: Journal Article
Palavras-chave: River basin model; Water pricing; Water management; Conjunctive water use; Morocco; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/56961

Technology Transfer from Publicly Funded Research for Improved Water Management: Analysis and Australian Examples
Provedor de dados: 31
Autores: Tisdell,   Clement A.
Considerable public funding is provided for research and development intended to improve the management and use of shared natural resources, such as water.  In Australia the Land and Water Research and Development Corporation (LWRRDC) and Environment Australia are significant providers of such funds.  These providers tend to judge the value of R &amp; D projects supported by them on the basis of whether or not significant technology transfer and adoption takes place.  Researchers involved in these projects and expected to be the prime movers of such transfer.  However, it seems that research funders have been guided by over simplified models of processes of technology transfer and by false analogies with the transfer of industrial technology.  There has...
Tipo: Working or Discussion Paper
Palavras-chave: Land and Water Research and Development Corporation (LWRRDC); Water management; Technology transfer.; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 1999
URL: http://purl.umn.edu/47993

Impact assessment of rehabilitation intervention in the Gal Oya Left Bank
Provedor de dados: 31
Autores: Amarasinghe,   Upali A.; Sakthivadivel,   Ramasamy; Murray-Rust,   Hammond.
Assesses the impact of rehabilitation interventions on irrigation system performance using time series analysis. The study demonstrates that with proper impact specification and model identification, the nature and magnitude of the impacts of different interventions can be separated from the effects of simultaneous changes in dominant exogenous factors.
Tipo: Report
Palavras-chave: Irrigation management; Water management; Irrigation systems; Productivity; Rehabilitation; Models; Project evaluation; Rain; Reservoir storage; Sri Lanka; Gal Oya Project; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/52965

Improving water productivity: how do we get more crop from every drop?
Provedor de dados: 31
Autores: International Water Management Institute (IWMI); Comprehensive Assessment of Water Management in Agriculture.
Based on research presented in the book “Water Productivity in Agriculture : Limits and Opportunities for Improvement” by J.W. Kijne, R. Barker and D. Molden. If current trends continue, the water crisis—which is already beginning to rear its head in many countries through depleted groundwater aquifers, dried-up rivers and wetlands, and frequent water shortages—will indeed become a global problem. A recent study by the International Food Policy Research Institute (IFPRI) and the International Water Management Institute (IWMI) projects that if present trends continue, by 2025 competition from growing cities and industry worldwide will limit the amount of water available for irrigation, causing annual global losses of 350 million metric tons of food...
Tipo: Report
Palavras-chave: Water management; Productivity; Irrigation management; Supplemental irrigation; Crop production; Crop Production/Industries; Productivity Analysis.
Ano: 2003
URL: http://purl.umn.edu/113016

Basin-level use and productivity of water: examples from South Asia
Provedor de dados: 31
Autores: Molden,   David J.; Sakthivadivel,   Ramasamy; Habib,   Zaigham.
Discusses and illustrates concepts for identifying ways of improving productivity of water within basins. The results of applying a water accounting procedure to four sub-basins in South Asia (Bhakra in India; Chishtian in Pakistan; Huruluwewa in northern Sri Lanka; and Kirindi Oya in southern Sri Lanka) are presented. The methodology used identifies the quantities and productivity of various uses of water within a basin. This information is then used to identify the water-saving potential, and the means of improving the productivity of the managed supplies.
Tipo: Report
Palavras-chave: Water management; Water conservation; River basins; Water use; Productivity; Case studies; Irrigated farming; Indicators; Water scarcity; South Asia; India; Pakistan; Sri Lanka; Bhakra; Chishtian; Kirindi Oya; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/61099

Rethinking agriculture in the Greater Mekong Subregion: how to sustainably meet food needs, enhance ecosystem services and cope with climate change
Provedor de dados: 31
Autores: Johnston,   Robyn M.; Hoanh,   Chu Thai; Lacombe,   Guillaume; Noble,   Andrew D.; Smakhtin,   Vladimir U.; Suhardiman,   Diana; Kam,   Suan Pheng; Choo,   Poh Sze.
Tipo: Report
Palavras-chave: Agricultural production; Rice; Fisheries; Livestock; Farming systems; Coastal area; Flood plains; Climate change; Environmental effects; Food production; Ecosystems; Water management; South East Asia; Greater Mekong Subregion; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Financial Economics; Food Consumption/Nutrition/Food Safety; Land Economics/Use; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2010
URL: http://purl.umn.edu/91465

El control de la contaminacion por nitratos en el regadio
Provedor de dados: 31
Autores: Martinez,   Yolanda Martinez; Karaj,   Skender Uku; Murillo,   Jose Albiac.
RESUMEN: En este artículo se analizan los efectos de algunas políticas de gestión del agua y de las técnicas de riego sobre el rendimiento de las actividades de cultivo y la contaminación del agua en la zona de regadío de Flumen-Monegros. El análisis se basa en la obtención de la respuesta del rendimiento de los cultivos al agua de riego y al abonado de nitrógeno. Las funciones de rendimiento se estiman mediante el programa de crecimiento de cultivos EPIC que incorpora información de las características locales de clima, suelo, manejo y sistema de riego de las actividades de cultivo. En los resultados se examina la relación entre los rendimientos y el uso del agua y del nitrógeno, y se cuantifica el coste para los agricultores de la reducción de la...
Tipo: Journal Article
Palavras-chave: Nitrogen pollution; Water management; Water and nitrogen crop response functions.; Environmental Economics and Policy; Q25; Q50.
Ano: 2002
URL: http://purl.umn.edu/28762

Irrigation investment trends in Sri Lanka: new construction and beyond
Provedor de dados: 31
Autores: Aluwihare,   Parakrama B.; Kikuchi,   Masao.
Tipo: Book
Palavras-chave: Investment; Water management; Rehabilitation; Rice; Crop Production/Industries; Farm Management.
Ano: 1991
URL: http://purl.umn.edu/113725

Water management in the Yellow River Basin: Background, current critical issues and future research needs
Provedor de dados: 31
Autores: Giordano,   Mark; Zhu,   Zhongping; Cai,   Ximing; Hong,   Shangchi; Xue,   Yunpeng; Zhang,   Xuecheng.
Tipo: Report
Palavras-chave: River basin development; Water management; Water use; History; Water stress; Water scarcity; Flood water; Soil conservation; Policy; Water quality; Environmental effects; Water conservation; Irrigation water; Pollution control; Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2004
URL: http://purl.umn.edu/92826

The challenges of integrated river basin management in India: issues in transferring successful river basin management models to the developing world
Provedor de dados: 31
Autores: International Water Management Institute,   IWMI-TATA Water Policy Program.
The problems that river basin institutions in the developed world successfully address—such as pollution, sediment buildup in rivers and the degradation of wetlands—are not the top priorities for Indian policy makers and people. The items that do top Indian agendas—providing access to water for drinking and growing food, eradicating poverty, and stopping groundwater overexploitation—are either unresolved in the developed world or have become irrelevant due to economic development. This does not mean that India and other developing countries cannot learn valuable lessons from models for Integrated River Basin Management. Loosely structured River Basin Organizations, such as Southeast Asia’s Mekong Commission, can contribute to basin welfare by serving as a...
Tipo: Report
Palavras-chave: River basins; Hydrology; Water management; Water harvesting; Groundwater management; Drip irrigation; Institutional development; Environmental Economics and Policy; Institutional and Behavioral Economics.
Ano: 2002
URL: http://purl.umn.edu/113064

Intersectoral management of river basins; Proceedings of an International Workshop on "Integrated Water Management in Water-Stressed River Basins in Developing Countries: Strategies for Poverty Alleviation and Agricultural Growth," Loskop Dam, South Africa, 16-21 October 2000
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Water management; River basins; Watercourses; Poverty; Agricultural development; Developing countries; Water policy; Water use efficiency; Political aspects; Water allocation; User charges; Privatization; Water users' associations; Water scarcity; Investment; Financing; Institutional constraints; Water law; Gender; Social aspects; Conflict; Agricultural and Food Policy; Agricultural Finance; Food Security and Poverty; Political Economy; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/118386

2nd Forum on Irrigation and water for sustainable development: 15 –16 December, 2008 Ghion Hotel, Addis Ababa, Ethiopia
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Erkossa,   Teklu; Balcha,   Yodit.
Tipo: Presentation
Palavras-chave: Sustainable development; Irrigation management; Irrigation water; Irrigated farming; Irrigation systems; Supplemental irrigation; Land management; Land use; Investment; Case studies; Government policy; Rural poverty; Groundwater; Small scale systems; Socioeconomic development; Economic aspects; Economic growth; Income; Water management; Water resources development; Water harvesting; Water supply; Public policy; Agricultural production; Developing countries; Public-private cooperation; History; Case studies; River basins; Crop production; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Financial Economics; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Public Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/118411

Water for rural development:  Background paper on water for rural development prepared for the World Bank
Provedor de dados: 31
Autores: Molden,   David J.; Amarasinghe,   Upali A.; Hussain,   Intizar.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Irrigation management; Rural development; Water resources development; Small scale systems; Land management; Groundwater; Environment; Health; Water policy; Institutions; Food consumption; Water supply; Water demand; Water allocation; Crop yield; Cereals; Water scarcity; Food production; Food security; Crop production; Population growth; Crop Production/Industries; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92777

Unmaking the Commons: Collective Action, Property Rights, and Resource Appropriation among (Agro-) Pastoralists in Eastern Ethiopia
Provedor de dados: 31
Autores: Beyene,   Fekadu; Korf,   Benedikt.
In Ethiopian development policies, pastoralist areas have recently attracted more attention. However, much debate and policy advice is still based on assumptions that see a sedentary lifestyle as the desirable development outcome for pastoralist communities. This paper investigates current practices of collective action and how these are affected by changing property rights in the pastoralist and agro– pastoralist economies of three selected sites in eastern Ethiopia. We describe forms of collective action in water and pasture resource management and analyze how changing property rights regimes affect incentives for collective action. We illustrate the distributional effects these practices are having on (agro–) pastoralist communities and how these...
Tipo: Conference Paper or Presentation
Palavras-chave: Pastoralism; Collective action; Property rights; Conflict; Ethiopia; Water management; Rangelands management; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/44361

Women’s Collective Action and Sustainable Water Management: Case of SEWA’s Water Campaign in Gujarat, India
Provedor de dados: 31
Autores: Panda,   Smita Mishra.
This paper discusses the Self Employed Women’s Association’s (SEWA) Women, Water and Work Campaign which organizes women’s collective action in Gujarat, India to sustain local water management. Some of the significant factors that have sustained women’s collective action are the presence of strong grassroots institutions, the establishment of a technical cadre of women, the ability of women’s groups to transcend social barriers and continuous dialoguing with the state. Women have benefited in terms of increased income, reduced drudgery, improvements in the livelihoods of their families, reduced migration of both women and men and increased participation in SEWA’s other programs. The most important impact observed is the strengthening of women’s collective...
Tipo: Working or Discussion Paper
Palavras-chave: Collective action; India; Water management; Gender relations; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/50065

When ENSO Reigns, It Pours: Climate Forecasts in Flood Planning
Provedor de dados: 31
Autores: Wernstedt,   Kris; Hersh,   Robert.
Recent scientific and technical advances have increased the potential use of long-term seasonal climate forecasts for improving water resource management. This paper examines the role that forecasts, in particular those based on the El Nino-Southern Oscillation (ENSO) cycle, can play in flood planning in the Pacific Northwest. While strong evidence of an association between ENSO signals and flooding in the region exists, this association is open to more than one interpretation depending on: a) the metric used to test the strength of the association; b) the definition of critical flood events; c) site-specific features of watersheds; and d) the characteristics of flood management institutions. A better understanding and appreciation of such ambiguities,...
Tipo: Working or Discussion Paper
Palavras-chave: Flooding; Climate; ENSO; Water resources planning; Water policy; Water management; Resource /Energy Economics and Policy; Q2.
Ano: 2001
URL: http://purl.umn.edu/10603

Productivity and performance of irrigated wheat farms across canal commands in the Lower Indus Basin
Provedor de dados: 31
Autores: Hussain,   Intizar; Marikar,   Fuard; Jehangir,   Waqar Ahmed.
A study of the enormous differences in agricultural productivity that exist across farms and regions in Pakistan, where, for example, recent farm-level data from Sindh, indicates that irrigated wheat output per hectare varies from 0.5 to 5.4 tons across farms. Looks at the central goal of agricultural policy in the country, viz. improving and sustaining productivity, narrowing the existing productivity gaps, and enhancing resource use efficiencies to meet food requirements of a rapidly growing population.
Tipo: Report
Palavras-chave: Irrigated farming; Wheat; Productivity; Performance evaluation; Water management; Cropping systems; Water supply; Soil properties; Models; Pakistan; Lower Indus Basin; Agribusiness; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis.
Ano: 2000
URL: http://purl.umn.edu/53023

Valuing water in irrigated agriculture and reservoir fisheries:  A multiple-use irrigation system in Sri Lanka
Provedor de dados: 31
Autores: Renwick,   Mary E.
Although irrigation projects often provide water for more than crop irrigation, water allocation and management decisions often do not account for nonirrigation uses of water. Failure to account for the multiple uses of irrigation water may result in inefficient and inequitable water allocation decisions. Decision-makers often lack information on the relative economic contributions of water in irrigation and nonirrigation uses. This report addresses this problem. It examines the relative economic contributions of irrigated agriculture and reservoir fisheries in the Kirindi Oya irrigation system, located in southeastern Sri Lanka. The results of the analysis indicate the importance of both irrigated paddy production and reservoir fisheries to the local...
Tipo: Report
Palavras-chave: Irrigation management; Water management; Irrigation programs; Irrigated farming; Rice; Production costs; Income; Economic evaluation; Water allocation; Water delivery; Fisheries; Reservoirs; Productivity; Crop production; Models; Family labor; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Security and Poverty; Labor and Human Capital; Productivity Analysis.
Ano: 2001
URL: http://purl.umn.edu/44569

Centre Commissioned External Review (CCER) of the IWMI-TATA Water Policy Research Program.
Provedor de dados: 31
Autores: Burke,   Jacob J.; Joshi,   Deep; Chopra,   Ravi.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural research; Research projects; Project appraisal; Financing; Institutional development; Evaluation; Water policy; Water management; Irrigation management; Groundwater; Agricultural and Food Policy; Agricultural Finance; Financial Economics; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods.
Ano: 2005
URL: http://purl.umn.edu/92021

Social aspects of water management during the Maha season 1985/86 in Dewahuwa and Mahaweli H-2 Block 305: precept and practice
Provedor de dados: 31
Autores: Bulankulame,   Senarath.
The International Irrigation Management Institute (IIMI) began research projects in Dewahuwa Tank and Mahaweli 11-2 during the Yala season (May-Aug.) of 1985. The research focussed initially on agricultural economics (e.g., farmers' use of agricultural inputs and returns from different crops) and on irrigation engineering (water distribution and flow rates). In the second season (Maha 1985/86) of research a social science component was added to address issues of farmers' management decisions and the institutional arrangements by which farmers and agency officials operate and maintain the irrigation works. This report summarizes the research results of the social science component for the Maha season, from October 1985 to April 1986.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Farmer-agency interactions; Cropping systems; Water distribution; Irrigation programs; Settlement; Crop Production/Industries; Institutional and Behavioral Economics.
Ano: 1986
URL: http://purl.umn.edu/113861

Poverty reduction through improved agricultural water management; Proceedings of the Workshop on Pro-poor Intervention Strategies in Irrigated Agriculture in Asia Islamabad, Pakistan, 23-24 April 2003
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Water management; Irrigated farming; Poverty; Food security; Households; Income; Drought; Forest policy; Natural disasters; Land ownership; Groundwater; Water market; Water balance; Legislation; Tube wells; Institutional development; Crop production; Wages; Economic aspects; Tillage; Water harvesting; Public policy; Surface water; Labor; Exports; Public sector; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Financial Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Public Economics; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/118414

Towards more inclusive long-term bulk water resource management
Provedor de dados: 31
Autores: de Lange,   Willem J.; Kleynhans,   Theo E.
Fresh water resources provide a platform for complex and often emotional issues to develop, particularly in resource scarcity situations.  Bulk water infrastructure contains elements of a public good and proved vulnerable to failures in market and government driven allocation strategies.  Common to both are uncaptured costs and benefits due to shortcomings in cost quantification techniques.  Natural ecosystems stands to lose the most since ecosystem services are often not quantifiable in monetary terms and therefore neglected in allocation decision-making.  This paper took on the challenge of expanding current decision-support in order to promote more inclusive long-term water management.  A case-study approach with the focus on a choice related problem...
Tipo: Journal Article
Palavras-chave: Water management; Decision-support; Public participation; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/8015

Strategic analysis of water institutions in India: Application of a new research paradigm
Provedor de dados: 31
Autores: Saleth,   Rathinasamy Maria.
The overall objective of this paper is to outline the analytical framework and theoretical approach underlying a new research paradigm and illustrate how this paradigm can be used for the strategic analysis of water institutions by applying it to the Indian context.
Tipo: Report
Palavras-chave: Water management; Irrigation management; Institutions; Water law; Water rights; Water policy; Cost recovery; Price policy; Private sector; Public sector; Privatization; Financing; Conflict; Groundwater; Water market; Farmers’ associations; Water users’ associations; Agribusiness; Agricultural Finance; Crop Production/Industries; Farm Management; Land Economics/Use; Production Economics.
Ano: 2004
URL: http://purl.umn.edu/44545

Accounting for water use and productivity
Provedor de dados: 31
Autores: Molden,   David J.
This paper presents a conceptual framework for water accounting and provides generic terminologies and procedures to describe the status of water resource use and consequences of water resources related actions. The framework applies to water resource use at three levels of analysis: a use level such as an irrigated field or household, a service level such as an irrigation or water supply system, and a water basin level that may include several uses. Water accounting terminology and performance indicators are developed and presented with examples at all the three levels. Concepts and terminologies presented are developed to be supportive in a number of activities including: identification of opportunities for water savings and  increasing water...
Tipo: Book
Palavras-chave: Water management; Irrigation management; Water supply; Terminology; Performance indexes; Water use; Water allocation; Productivity; Water balance; Crop Production/Industries; Farm Management; Productivity Analysis.
Ano: 1997
URL: http://purl.umn.edu/113623

Ecosystems for water and food security. [Background paper]
Provedor de dados: 31
Tipo: Book
Palavras-chave: Agroecosystems; Agriculture; Food security; Food production; Water scarcity; Water management; Water productivity; Wetlands; Water use; Decision making; Environmental flows; Developing countries; Hunger; Poverty; Fisheries; Climate change; Agroforestry; Biodiversity; Rangelands; Livestock; Rainfed farming; Policy; Landscape; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Production Economics.
Ano: 2012
URL: http://purl.umn.edu/124386

Statewide Water Planning: The Georgia Experience
Provedor de dados: 31
Autores: Mullen,   Jeffrey D.
Several states in the southeast have acknowledged the need for statewide water planning but have yet to act. In contrast, Georgia is on the cusp of completing the Georgia Comprehensive Statewide Water Management Plan (SWMP). The SWMP provides for resource assessments, forecasts, and regional water planning. Over the past 3 years, an extensive effort has been made to implement the SWMP. This article describes the planning process undertaken in Georgia. Several of the recommended practices are also highlighted and critiqued with respect to their potential to affect aggregate water use in the state.
Tipo: Journal Article
Palavras-chave: Residential water use; Water management; Water planning; Irrigation; Resource /Energy Economics and Policy; Q25; Q28; R58.
Ano: 2011
URL: http://purl.umn.edu/113528

Assessment of performance and impact of irrigation and water resources  systems in Taiwan and Sri Lanka: Final report
Provedor de dados: 31
Autores: Sakthivadivel,   Ramasamy; Aloysius,   Noel; Matsuno,   Yutaka.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation systems; Water scarcity; Water allocation; Water supply; Water quality; Water distribution; Decision making; Water management; Regression analysis; Performance evaluation; Sustainability; Irrigated farming; Agricultural development; Farm size; Irrigation management; Farmers' associations; Rain; Paddy cultivation; Crop yield; Costs; Productivity; Crop Production/Industries; Farm Management; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92774

Productivity and performance of irrigated wheat farms across canal commands in the Lower Indus Basin
Provedor de dados: 31
Autores: Hussain,   Intizar; Marikar,   Fuard; Jehangir,   Waqar Ahmed.
A study of the enormous differences in agricultural productivity that exist across farms and regions in Pakistan, where, for example, recent farm-level data from Sindh, indicates that irrigated wheat output per hectare varies from 0.5 to 5.4 tons across farms. Looks at the central goal of agricultural policy in the country, viz. improving and sustaining productivity, narrowing the existing productivity gaps, and enhancing resource use efficiencies to meet food requirements of a rapidly growing population.
Tipo: Report
Palavras-chave: Irrigated farming; Wheat; Productivity; Performance evaluation; Water management; Cropping systems; Water supply; Soil properties; Models; Pakistan; Lower Indus Basin; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis.
Ano: 2000
URL: http://purl.umn.edu/53024

Changes in water duties and their impact on agricultural production: the case of Girsal Minor
Provedor de dados: 31
Autores: Strosser,   Pierre; Afaq,   Rana M.; Garces,   Carlos.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Canal irrigation; Water supply; Water management; Watercourses; Tube wells; Agricultural production; Crop yield; Wheat; Crop Production/Industries; Farm Management; Production Economics.
Ano: 1993
URL: http://purl.umn.edu/114046

A gender performance indicator for irrigation:  Concepts, tools and applications
Provedor de dados: 31
Autores: van Koppen,   Barbara.
Although gender issues are today a priority on the agendas of irrigation policy makers, interventionists, farm leaders and researchers, there is still a considerable gap between positive intentions and concrete action. An important but hitherto ignored reason for this is the lack of adequate generic concepts and tools that are policy-relevant and can accommodate the vast variation in irrigation contexts worldwide. The Gender Performance Indicator for Irrigation (GPII) aims to fill this gap. In any particular scheme, this tool diagnoses the gendered organization of farming and gender-based inclusion or exclusion in irrigation institutions. It informs irrigation agencies what they themselves can do for effective change-if necessary. The tool also identifies...
Tipo: Report
Palavras-chave: Gender; Women; Irrigation management; Water management; Policy; Decision making; Performance evaluation; Indicators; Irrigated farming; Farming systems; Case studies; Water users' associations; Leadership; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Productivity Analysis.
Ano: 2002
URL: http://purl.umn.edu/44562

Irrigation sector in Sri Lanka:  Recent investment trends and the development path ahead
Provedor de dados: 31
Autores: Kikuchi,   Masao; Barker,   Randolph; Weligamage,   Parakrama; Samad,   Madar.
Increasing the area under irrigation and the widespread adoption of seed-fertilizer technology were the major factors that contributed to enhanced rice production in Sri Lanka, enabling the country to achieve self-sufficiency in rice. In recent years, there has been a shift in emphasis from expanding the irrigated land base to enhancing the productivity of irrigated land through diversification of agriculture and improvement of rice production, with better water management in irrigation schemes. This report attempts to assess how the irrigation sector in Sri Lanka is adapting itself to these new challenges. It analyzes the future direction of irrigation in Sri Lanka in light of recent trends in public and private investment in this sphere, and the...
Tipo: Report
Palavras-chave: Irrigated farming; Public investment; Private investment; Cropping systems; Water management; Rehabilitation; Operating costs; Maintenance costs; Wells; Pumps; Agribusiness; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/44565

PARTICIPATION OF LOCAL PEOPLE IN WATER MANAGEMENT: EVIDENCE FROM THE MAE SA WATERSHED, NORTHERN THAILAND
Provedor de dados: 31
Autores: Heyd,   Helene; Neef,   Andreas.
In the early 1990s, Thailand launched an ambitious program of decentralized governance, conferring greater responsibilities upon sub-district administrations and providing fiscal opportunities for local development planning. This process was reinforced by Thailand’s new Constitution of 1997, which explicitly assures individuals, communities and local authorities the right to participate in the management of natural resources. Drawing on a study of water management in the Mae Sa watershed, northern Thailand, this study analyzes to what extent the constitutional right for participation has been put into practice. To this end, a stakeholder analysis was conducted in the watershed, with a focus on the local people’s interests and strategies in water management...
Tipo: Working or Discussion Paper
Palavras-chave: Participation; Water management; Water policy; Stakeholders; Thailand; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/60326

Water governance in the Mekong region: the need for more informed policy-making
Provedor de dados: 31
Autores: International Water Management Institute (IWMI).
Recurring water crises, global water initiatives, and demands for water reforms by development banks, have all pushed water up the agenda of most Mekong-region countries. Many changes have already been made. Now decision makers need to know what has worked, what hasn’t, and why. To find out, IWMI has reviewed new water policies, plans and laws, and assessed participation, the new water ‘apex bodies’, and integrated water resources management (IWRM). The findings show that top-down state policies based on ‘blueprints’ are widely applied in a one-size-fits-all approach, without taking local realities into account. Water planning is still largely expert-driven, and focused on procedures and targets. There is little room for decision-making that is based on...
Tipo: Report
Palavras-chave: Water management; River basins; Governance; Policy making; Planning; Water law; Agricultural and Food Policy.
Ano: 2006
URL: http://purl.umn.edu/113061

A method to identify and evaluate the legal and institutional framework for the management of water and land in Asia: the outcome of a study in Southeast Asia and  the People’s Republic of China.
Provedor de dados: 31
Autores: Hannam,   Ian.
Tipo: Report
Palavras-chave: Water management; Land management; Legal aspects; Environmental policy; China; Laos; Bangladesh; Philippines; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/52970

The energy-irrigation nexus
Provedor de dados: 31
Autores: International Water Management Institute,   IWMI-TATA Water Policy Program.
Electricity subsidies for farmers are an expensive legacy of past development policies. The result is overuse of both energy and water in groundwater-irrigated agriculture—threatening the financial viability of the power sector and the future of the groundwater resource itself, along with the livelihoods of the millions who depend on it. The most popular solution is the metered tariff, promoted by international donors and many of India’s state governments. But metering is the ideal solution only if the cost of metering and billing 14 million scattered, small users in India, Pakistan and Bangladesh is ignored. Easier, more feasible and more beneficial in the short run in many parts of South Asia would be the use of a rational flat tariff, which avoids the...
Tipo: Report
Palavras-chave: Water management; Energy; Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/113065

Institutions under stress and people in distress: institution-building and drought in a new settlement scheme
Provedor de dados: 31
Autores: Merrey,   Douglas J.; Somaratne,   Pallewatte G.
This paper analyzes irrigation operational problems, and their institutional causes, on a new irrigation system in southern Sri Lanka, based on research during disastrous drought.  The authors offer a number of suggestions for improving the management of this system.
Tipo: Book
Palavras-chave: Institutional constraints; Institution building; Drought; Settlement patterns; Farmers associations; Water management; Institutional and Behavioral Economics.
Ano: 1989
URL: http://purl.umn.edu/113954

Managing water for the poor; Proceedings of the Regional Workshop on Pro-Poor Intervention Strategies in Irrigation Agriculture in Asia - Bangladesh, China, India, Indonesia, Pakistan and Vietnam, Colombo, 9-10 August 2001
Provedor de dados: 31
Tipo: Presentation
Palavras-chave: Water management; Irrigated farming; Surface irrigation; Large-scale systems; Poverty; Irrigation programs; Rural development; Participatory management; Conflict; Water users' associations; Farmer-agency interactions; Financing; Policy; Water rates; Pricing; Water scarcity; Rice; Irrigation scheduling; Water delivery; Case studies; Farm Management; Financial Economics; Food Security and Poverty; Public Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/118412

Economic drought management index to evaluate water institutions' performance under uncertainty
Provedor de dados: 31
Autores: Iglesias,   Eva; Garrido,   Alberto; Gomez-Ramos,   Almudena.
Reservoir management and intertemporal water allocation are critical issues in semiarid regions where agriculture has to confront highly variable rainfall patterns. In this paper, we derive and propose an economic drought management index (EDMI) to evaluate water institutions' performance to cope with drought risk. The EDMI is based on the optimal conditions of a stochastic dynamic optimisation problem that characterises reservoir management. The index's main advantages are its ease of interpretation and breadth of scope, as it incorporates information on hydrological processes, structural constraints, water institutions' rules, and the economic benefits of water use. An empirical application is developed to assess the institutional rules governing water...
Tipo: Journal Article
Palavras-chave: Drought risk; Irrigation; Reservoir management; Water institutions; Water management; Water resources; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/118316

Institutional constraints to conjunctive water management in the Rechna Doab.
Provedor de dados: 31
Autores: Jehangir,   Waqar Ahmed; Horinkova,   Vilma.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Conjunctive use; Groundwater; Surface water; River basins; Institutional development; Organizations; Water law; Legislation; Irrigation scheduling; Conflict; Institutional constraints; Organizational change; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92705

Empowerment of farmer organizations: case study of Farmer Managed Irrigated Agriculture Project, Sindh.
Provedor de dados: 31
Autores: Murray-Rust,   Hammond; Memon,   Yameen; Talpur,   Mustafa.
Tipo: Working or Discussion Paper
Palavras-chave: Farmer managed irrigation systems; Farmers' associations; Irrigation programs; Case studies; Irrigation management; Water management; Irrigated farming; Farmer participation; Legal aspects; Institution building; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92779

Modelling the management of multiple-use reservoirs: Deterministic or stochastic dynamic programming?
Provedor de dados: 31
Autores: Tran,   Lap Doc; Schilizzi,   Steven; Chalak,   Morteza; Kingwell,   Ross S.
Modelling complex systems such as multiple-use reservoirs can be challenging. A legitimate question for scientists and modellers is how best to model their management under uncertain rainfall. This paper studies whether it is worth using a stochastic model that requires more effort than a much simpler deterministic model. Both models are applied to the management of a multiple-use reservoir in southern Vietnam. Although no single modelling approach is universally superior, this study indicates that the desirable modelling approach is stochastic if reservoir capacity and water use demands have a high enough impact on the optimal timing of reservoir water use.
Tipo: Presentation
Palavras-chave: Deterministic dynamic proramming; Stochastic dynamic programming; Water management; Irrigation; Fisheries; Multiple-use reservoir; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/124463

Use of On-Farm Reservoirs in Rice Production: Results from the MARORA Model
Provedor de dados: 31
Autores: Popp,   Jennie S. Hughes; Wailes,   Eric J.; Young,   Kenneth B.; Smartt,   Jim; Intarapapong,   Walaiporn.
The present article uses the modified Arkansas off-stream reservoir analysis and the environmental policy-integrated climate models to examine the impacts of on-farm reservoirs and tail water recovery systems in conjunction with other best management practices on profitability, water use, and sediment control for rice-soybean farming operations.  Results suggest that, under limited water availability conditions, reservoirs and tail water recovery systems can improve profitability, reduce ground water dependence, and reduce the movement of sediment, nutrients, and pesticides off-farm.  Although reservoirs may not be profitable under plentiful water conditions, cost-sharing opportunities may make them a viable means of addressing environmental concerns.
Tipo: Journal Article
Palavras-chave: On-farm reservoirs; Sediment control; Water management; Q25; Q15; Q29.
Ano: 2003
URL: http://purl.umn.edu/43212

Locally managed irrigation systems: essential tasks and implications for assistance, management transfer and turnover programs
Provedor de dados: 31
Autores: Yoder,   Robert.
This monograph examines the construction, operation and maintenance tasks that shape the nature of locally managed irrigation systems. The objective of the book is to identify relevant experiences and lessons for staff who are responsible for working with locally managed systems in three types of programs: direct assistance to existing locally managed irrigation systems, turnover of public owned systems to local management, and transfer of partial management to farmer groups within larger systems that remain publicly controlled.
Tipo: Book
Palavras-chave: Irrigation management; Irrigation systems; Irrigation scheduling; Privatization; Farmer participation; Water management; Water rights; Water allocation; Resource management; Organizational dynamics; Conflict; Communication; Training; Farm Management; Institutional and Behavioral Economics.
Ano: 1994
URL: http://purl.umn.edu/114044

Irrigation management transfer: how to make it work for Africa’s smallholders?
Provedor de dados: 31
Autores: International Water Management Institute (IWMI).
Based on research presented in “Institutional Alternatives in African Smallholder Irrigation: :Lessons from International Experience with Irrigation Management Transfer (IWMI Research Report 60)” by Tushaar Shah, Barbara van Koppen,  Marna de Lange, Madar Samad, and Douglas Merrey. An international review of IMT experiences shows that for transfer to work, the irrigation system must be central to a wealth-creating agriculture within which IMT makes good economic sense to farmers. This is not the case in a majority of Africa’s smallholder schemes. Making IMT work in this context means addressing a number of challenges: smallholder dependency resulting from years of state intervention in farm operations and management, farmers’ inability to depend on...
Tipo: Report
Palavras-chave: Water management; Privatization; Small scale systems; Small holders; Farm Management.
Ano: 2003
URL: http://purl.umn.edu/113017

Water Balance Components in Covered and Uncovered Soil Growing Irrigated Muskmelon
Provedor de dados: 90
Autores: Libardi,Paulo Leonel; Mota,Jaedson Cláudio Anunciato; Assis Júnior,Raimundo Nonato de; Brito,Alexsandro dos Santos; Amaro Filho,Joaquim.
ABSTRACT Knowledge of the terms (or processes) of the soil water balance equation or simply the components of the soil water balance over the cycle of an agricultural crop is essential for soil and water management. Thus, the aim of this study was to analyze these components in a Cambissolo Háplico (Haplocambids) growing muskmelon (Cucumis melo L.) under drip irrigation, with covered and uncovered soil, in the municipality of Baraúna, State of Rio Grande do Norte, Brazil (05º 04’ 48” S, 37º 37’ 00” W). Muskmelon, variety AF-646, was cultivated in a flat experimental area (20 × 50 m). The crop was spaced at 2.00 m between rows and 0.35 m between plants, in a total of ten 50-m-long plant rows. At points corresponding to ⅓ and ⅔ of each plant row, four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Evapotranspiration; Internal drainage; Apodi Plateau.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501322

Potassium leaching in different soils as a function of irrigation depths
Provedor de dados: 91
Autores: Mendes,Walter da C.; Alves Júnior,José; Cunha,Paulo C. R. da; Silva,Anderson R. da; Evangelista,Adão W. P.; Casaroli,Derblai.
ABSTRACT Potassium (K) can be easily lost by the leaching process. The objective of this study was to quantify K leaching in clayey and sandy soils under increasing irrigation depths. The experiment was conducted in 2014, in a protected environment, after extraction of undisturbed soil columns, with diameter of 144 mm and height of 300 mm. The columns were arranged in a randomized complete block in a factorial design with three replicates, corresponding to eight treatments: two soil types and four water depths, equivalent to 50, 100, 150 and 200% of the amount of water necessary to bring the soil moisture to field capacity. Potassium chloride, with 58% of K2O, was used as K source. Water replacement in the columns was performed every three days, for a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fertilization; Soil texture; Nutrient loss; Water management.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001100972

Development, yield and quality attributes of sugarcane cultivars fertigated by subsurface drip irrigation
Provedor de dados: 91
Autores: Silva,André L. B. de O.; Pires,Regina C. M.; Ribeiro,Rafael V.; Machado,Eduardo C.; Blain,Gabriel C.; Ohashi,Augusto Y. P.
ABSTRACT The present study aimed to evaluate the development, yield and quality of four sugarcane cultivars fertigated by subsurface drip system. The experiment was carried out in Campinas-SP, Brazil, from January 2012 to November 2013, with the cultivars SP79-1011, IACSP94-2101, IACSP94-2094 and IACSP95-5000 subjected to daily irrigations. The irrigations depths were applied to bring soil moisture to field capacity. Soil moisture was monitored using soil moisture probes. Samples were collected along the crop cycle in order to evaluate crop development and yield, at the end of the first and second ratoons. Stalk height showed good correlation for the estimation of crop yield, with R2 equal to or higher than 0.96. The cultivar IACSP95-5000 showed the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Water déficit; Saccharum spp.; Technological analysis.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000600525

Economically optimal water depth and grain yield of common bean subjected to different irrigation depths
Provedor de dados: 91
Autores: Conceição,Chaiane G. da; Robaina,Adroaldo D.; Peiter,Marcia X.; Parizi,Ana R. C.; Conceição,João A. da; Bruning,Jhosefe.
ABSTRACT Common bean crop plays an important role in the world, not only in economic aspects but also in social development. The objective of this study was to evaluate the grain yield and the economically optimal water depth which reflects the maximum technical efficiency of the common bean crop. The experiment was conducted in greenhouse, in Alegrete - RS, from February to May 2016. A completely randomized design was used, consisting of five water replacement treatments (25, 50, 75, 100 and 125% crop evapotranspiration - ETc) and four replicates. Based on the obtained results, both water deficit and water excess directly affected the final grain yield of the crop. Maximum grain yield was 3,554.1 kg ha-1, obtained by applying 492.72 mm (100% ETc). On the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Water management; Yield components.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700482

Water seasonality in granting permits and impact of irrigation in the Dourados River basin, MS, Brazil
Provedor de dados: 91
Autores: Ramos,Diovany D.; Pereira,Silvio B.; Arai,Fabiane K.; Santos,Felipe A. dos; Carnevali,Thiago de O.
ABSTRACT The objective of this study was to evaluate water seasonality in the process of granting permits and the impact of irrigation in the Dourados River basin. For that, the hydrological behavior of the basin was analyzed. The minimal streamflows (Q7,10 and Q95), irrigation withdrawal flow (Qr) and the percent variation of the grant flows relative to monthly seasonal period in relation to the monthly withdrawal flow were obtained. The results allowed to verify that using criteria based on the monthly streamflow allows for better management of water use, because it allows for greater utilization of this resource in times with high water availability and imposes a realistic restriction during critical periods. The average annual water withdrawal for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water resources; Hydrological behavior; Water management.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700499

Changes in chemical attributes of a Fluvent cultivated with castor bean and irrigated with wastewater
Provedor de dados: 91
Autores: Barreto,Aurelir N.; Nascimento,Joab J. V. R. do; Medeiros,Everaldo P. de; Nóbrega,Janiny A. da; Bezerra,Jose R. C.
Agricultural use of wastewater is an alternative to increase water availability, especially in semiarid regions. However, it may cause undesirable chemical changes in the soil. The aim of this study was to evaluate the influence of wastewater irrigation and castor bean (Ricinus communis L.) cultivation on the chemical attributes of a Fluvic Neosol. The experimental design was in a randomized block, in split-plot scheme, where the main plots were represented by the treatments of irrigation water and castor bean cultivation, and the subplots were the soil layers, with three replications. The treatments were T1 - wastewater irrigation + castor bean cultivation ; T2 - mixture of supply water and wastewater (1:1 ratio) + castor bean cultivation; T3 - supply...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reuse; Nutrients; Effluent; Water management; Ricinus communis.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013000500003

YELLOW PASSION-FRUIT IRRIGATED IN DIFERENT CROPPING SYSTEMS
Provedor de dados: 94
Autores: SOUZA,SAMUEL FERREIRA DE; RIBEIRO,VALTEMIR GONÇALVES.
ABSTRACT  With this study, the objective was to determine the most economic management of irrigation water applied at different levels in the culture of passion fruit grown in conventional system and in polyethylene bags. The experiment was conducted in the city of Remanso, state of Bahia, Brazil. The experimental set-up was a randomized block design in a factorial design 2 (conventional system, and polyethylene bags of 100 L) x 5 (irrigation levels: 100%, 80%, 60%, 40% and 20% an irrigation management at field capacity) with four replications and four plants per plot. The treatments began 30 days after transplanting the seedlings to the field, and the analyzed variables were: plant height, stem diameter, leaf area and number of tertiary branches, of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora edulis; Water management; Plant growth.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300702

Satellite-based ET estimation using Landsat 8 images and SEBAL model
Provedor de dados: 124
Autores: Silva,Bruno Bonemberger da; Mercante,Erivelto; Boas,Marcio Antonio Vilas; Wrublack,Suzana Costa; Oldoni,Lucas Volochen.
ABSTRACT Estimation of evapotranspiration is a key factor to achieve sustainable water management in irrigated agriculture because it represents water use of crops. Satellite-based estimations provide advantages compared to direct methods as lysimeters especially when the objective is to calculate evapotranspiration at a regional scale. The present study aimed to estimate the actual evapotranspiration (ET) at a regional scale, using Landsat 8 - OLI/TIRS images and complementary data collected from a weather station. SEBAL model was used in South-West Paraná, region composed of irrigated and dry agricultural areas, native vegetation and urban areas. Five Landsat 8 images, row 223 and path 78, DOY 336/2013, 19/2014, 35/2014, 131/2014 and 195/2014 were used,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Land cover; Energy balance.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000200221

Water and physiological relationships of lettuce cultivated in hydroponics with brackish waters
Provedor de dados: 124
Autores: Soares,Hammady Ramalho e; Santos Júnior,José Amilton; Silva,Ênio Farias de França e; Rolim,Mário Monteiro; Silva,Gerônimo Ferreira da.
ABSTRACT Rationalization of brackish water management in hydroponic crops is one of the ways to expand and manage water supply in shortage areas. Thus, this work was carried out to evaluate the water and physiological relationships of Iceberg lettuce (cv. Tainá) in plants exposed to strategies of replacement of the evapotranspired volume of saline nutrient solutions. Two experiments were conducted in NFT hydroponic system, in which increasing levels of water salinity (0.2, 1.2, 2.2, 3.2, 4.2 and 5.2 dS m-1) were used to prepare the nutrient solutions. In the first experiment, the evapotranspired volume was replaced with the respective brackish water and, in the second one, with public-supply water (0.2 dS m-1). Both experiments were set up in a randomized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Water management; Salinity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000200216

Vegetative growth and yield of strawberry under irrigation and soil mulches for different cultivation environments
Provedor de dados: 63
Autores: Pires,Regina Célia de Matos; Folegatti,Marcos Vinícius; Passos,Francisco Antonio; Arruda,Flávio Bussmeyer; Sakai,Emílio.
The vegetative growth and yield of strawberry in relation to irrigation levels and soil mulches are still not well known, mainly for different environmental conditions. Two experiments were carried out in Atibaia, SP, Brazil, during 1995, one in a protected environment and the other in an open field, to evaluate the cultivar Campinas IAC-2712, under different irrigation levels and soil mulches (black and clear polyethylene). Three water potential levels in the soil were used in order to define irrigation time, corresponding to -0.010 (N1), -0.035 (N2), and -0.070 (N3) MPa, measured through tensiometers installed at the 10 cm depth. A 2 × 3 factorial arrangement was adopted, as randomized complete block, with 5 replicates. In the protected cultivation, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria &amp;times; Ananassa Duch.; Trickle irrigation; Water management; Greenhouse.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000500001

Dynamic systems approach assess and manage water resources in river basins
Provedor de dados: 63
Autores: Sánchez-Román,Rodrigo Máximo; Folegatti,Marcos Vinicius; Orellana González,Alba María Guadalupe; Silva,Rogério Teixeira da.
The Piracicaba, Capivari and Jundiaí River Basins (RB-PCJ) are located in the States of Minas Gerais and São Paulo, Brazil. By 2005, 5.8% of Brazil's General National Product-GNP was produced there. Such economic development has created a huge demand for water resources. The availability of water resources was assessed by running a dynamic systems simulation model to manage these resources in the RB-PCJ (WRM-PCJ), considering five 50-year simulations. WRM-PCJ was developed as a tool to aid the RB-PCJ Watershed Committee. The model computes water supply, demands, and contamination load from several consumers. When considering a Business-as-Usual scenario, by 2054, water demands will have increased up to 76%, 39% of the available water will come from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water stress; Water management; Watershed; Modeling.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400001

Automatically controlled deficit irrigation of lettuce in “organic potponics”
Provedor de dados: 63
Autores: Valença,David da Cunha; Carvalho,Daniel Fonseca de; Reinert,Fernanda; Azevedo,Ricardo Antunes; Pinho,Camila Ferreira de; Medici,Leonardo Oliveira.
ABSTRACT: Concerns with water crisis involve all sectors of society and irrigated agriculture remains the main water consumer. This study evaluated an agricultural production system for lettuce cultivation in greenhouse, “organic potponics”, to economize water and manure use, using a Simplified Irrigation Controller (SIC), based on soil matric potential monitoring. Five irrigation volumes were evaluated in pots with 4.8 L, fertilized with 200 g of vermicompost. One of the volumes was controlled with the SIC. The other volumes represented 130, 80, 60 and 33 % of that controlled by the SIC and all treatments received water at the same time. Shoot fresh weight, head diameter and stomatal conductance (gs) increased linearly with irrigation volumes. For shoot...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa; Water use efficiency; Production system; Water management; Automation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000100052

Water levels and soil mulches in relation to strawberry diseases an yield in a greenhouse
Provedor de dados: 63
Autores: Pires,Regina Célia de Matos; Folegatti,Marcos Vinícius; Tanaka,Maria Aparecida de Souza; Passos,Francisco Antonio; Ambrosano,Gláucia Maria Bovi; Sakai,Emilio.
The occurrence of diseases and its influence on strawberry yield in a greenhouse as well as its association with water management are still not well known. So, the aim of this work was to evaluate the effect of different water levels and soil mulches on strawberry plant health and yield in a greenhouse. The experiment was carried out at Atibaia, State of São Paulo, Brazil, from April to December 1995. The experimental design was a 2 × 3 factorial, in randomized blocks, with five replications, and consisted of two soil mulches and three water levels. The soil mulches consisted of clear or black plastic. Trickle irrigation was applied whenever the soil water potential reached -10, -35 and -70 kPa at a depth of ten centimeters. Cultivar Campinas IAC 2712 was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria × ananassa Duch.; Water management; Trickle irrigation; Disease.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000600003

Irrigation frequency and substrate volume effects in the growth and yield of tomato plants under greenhouse conditions
Provedor de dados: 63
Autores: Pires,Regina Célia de Matos; Furlani,Pedro Roberto; Ribeiro,Rafael Vasconcelos; Bodine Junior,Décio; Sakai,Emílio; Lourenção,André Luiz; Torre Neto,André.
Tomato cropping (Solanum lycopersicum L.) under protected cultivation using substrates and drip fertigation has improved sustainable production systems especially fruit quality and plant health. However, little is known for tomato plants when considering the interaction between substrate volume and irrigation frequency. The aim of this study was to evaluate the effects of coconut (Cocos nucifera L.) fiber substrate volumes and drip irrigation frequencies on the vegetative growth and fruit yield of tomato plants under greenhouse conditions. The experimental design consisted of randomized blocks arranged in a 3 × 2 factorial with four replicates. Treatments consisted of three substrate volumes (5.0; 7.5 and 10.0 L per plant) and two irrigation frequencies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum L.; Fertigation; Gas exchange; Trickle irrigation; Water management.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400002

การจัดทำบัญชีน้ำในพื้นที่โครงการหลวงอ่างขาง ปีพ.ศ.2548
Provedor de dados: 106
Autores: Sarayut Eimjai.
Thesis (M.Sc. in Engineering)
Tipo: PhysicalObject
Palavras-chave: Water accounting; Water use; Basic data; Water management; Angkhang Royal Project; การใช้น้ำ; การจัดทำบัญชีน้ำรายเดือน; การจัดทำข้อมูลพื้นฐาน; การบริหารจัดการน้ำ; ปริมาณน้ำไหล; พื้นที่โครงการหลวงอ่างขาง.
Ano: 2007
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5469

การใช้แหนแดงร่วมกับปุ๋ยสั่งตัดในการปลูกข้าวพันธุ์พิษณุโลก 2 ด้วยระบบน้ำน้อย
Provedor de dados: 106
Autores: Wipa Homhaul; Narumol Kritsadi; Sudarat Kaewkam; Kiatisak Loongka.
The experiment was conducted by growing Phitsanulok 2 rice with appling azolla and tailormade fertilizer under less water in cement containers in a greenhouse. The experiment was a completely randomized design of 5 experiments and 3 replications. It was found that the plant growth rates per week were significantly different among treatments in weeks 6 and 7. Tillering was the highest when using only tailor-made fertilizer and followed by when using tailor-made fertilizer and azolla together. When using azolla and tailor-made fertilizer, the number of spikes, fresh and dry weight of straw, root length, fresh and dry weight of root and grains obtained were higher than those from other treatments. After the experiment, using azolla and tailor-made fertilizer...
Tipo: PhysicalObject
Palavras-chave: Azolla; Chemical fertilizer; PSL 2; Water management; Less water system; ข้าว; พันธุ์พิษณุโลก 2; แหนแดง; ปุ๋ยเคมี; การจัดการน้ำ.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5402

ผลของการจัดการน้ำต่อการปล่อยก๊าซมีเทนในนาข้าวศูนย์วิจัยข้าวลพบุรี
Provedor de dados: 106
Autores: Arthit Kukam-oo; Naiyakon Sa-ngwnkaew; Kritkamol Paothong; Perapol Ratana.
Effect of water management to emission methane gas in Lopburi Rice Research Center dry season in 2014. Under Development of Alternative Technologies for Greenhouse Gas Emission Reduction and Information System for Decision Support of Policy Maker Project was experimental by Randomized Complete Block (RCB) 3 Replications to compare greenhouse gas emission from 3 Alternative Wet and Dry (AWD) with -10, -15, -20 cm water level and continuous irrigation method. Results showed that Lopburi Rice Research Center was sandy loam soil and AWD irrigation with -10 to -20 cm water level was 27 – 31 % water saving with comparative continuous irrigation method. AWD irrigation with -15 cm water level drainage tended to be best practice with minimum emission and water...
Tipo: Collection
Palavras-chave: Water management; Greenhouse gas emission; Rice production; Lopburi province; Methane emission; การจัดการน้ำ; การเกิดก๊าซเรือนกระจก; การผลิตข้าว; จังหวัดลพบุรี; การปล่อยก๊าซมีเทน.
Ano: 2015
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5944

Factors influencing the decline of traditional cross-stream earthen weir (Thamnop) irrigation in northeast Thailand: Comparison of a still-functioning and an abandoned thamnop in two villages in Surin province
Provedor de dados: 106
Autores: Prapatsorn Wongsalee; Rambo, A. Terry; Fukui Hayao; Arunee Promkhambut.
Earthen weir (thamnop) irrigation of rice fields was formerly widespread in Northeast Thailand (Isan) but has greatly declined in recent years, although still persisting in some places in southern Isan. The objective of this research was to discover if there are differences in the contexts of existing and abandoned of thamnop that may explain their retention or abandonment. Field study employing participation observation and interviewing of key informants and samples of farmer households was done in two villages in Surin province. One village has a still-functioning thamnop, the other has an abandoned one. Both physical and social factors were found to differ among the two cases. The existing thamnop is located at the midpoint between the uplands and...
Tipo: PhysicalObject
Palavras-chave: Cross-stream earthen weir; Thamnop; Irrigation; Water management; Indigenous knowledge; Abandoned thamnop; Function; Rice cultivation; Surin province; Northeast; ทำนบ; การเก็บน้ำ; การจัดการน้ำ; ระบบชลประทาน; ภูมิปัญญาชาวบ้าน; การใช้งาน; การปลูกข้าว; จ.สุรินทร์; ภาคตะวันออกเฉียงเหนือ.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5814

การตอบสนองของพันธุ์ข้าวไทยต่อระบบนาน้ำน้อย
Provedor de dados: 106
Autores: Nednapa Insalud; Supasit Sitthapanit; Jessada Phattaralerpong; Benjavan Rerkasem.
The development of a water saving rice growing system was stemmed from an attempt to manage efficient water usage, whereby reducing level of water use but still maintaining acceptable level of yield. To be successful in implementing the water saving rice growing system, it is necessary to understand a suitable photosynthetic mechanism and photosynthetic efficiency of each rice cultivar to be grown in such system. An understanding of such knowledge will lead to a better selection of healthy and high yielding cultivars. As such, this study was aimed to compare responses of 10 Thai rice cultivars in terms of photosynthesis rate and growth in well-drained and water-logged systems. Our data indicated that almost all rice cultivars grown under either...
Tipo: Collection
Palavras-chave: Plant growth; Photo response; Photosynthesis; Rice; Water management; Water saving system; ข้าว; การตอบสนองต่อแสง; การสังเคราะห์แสง; การเจริญเติบโต; การจัดการน้ำ; ระบบนาน้ำน้อย.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5378

Water management improvements for agriculture by applying efficient crop schedules in the highland forest of Vilcabamba, Peru
Provedor de dados: 111
Autores: Meseth, Enrique; Yu, Jason C.S.
The current work is aimed to improve the water management for agriculture, by applying efficient crop schedules in Vilcabamba -and similar areas of the Andean highland forest-, which can satisfy most of the water requirements with rainfed irrigation and maximise the crops yield.  For this purpose, two field practices were carried out during the dry (September 2012) and wet season (February 2013) to measure rivers and canals flows with the velocity/area method.  Nineteen soil samples were collected on-site and analysed, presenting prevalent sandy loam and loam textures.  Cropwat programme and data on climate, crops and soil were used to estimate crop water requirements and scheme irrigation requirements, indicating that crop evapotranspiration is low due to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Irrigation requirements Crop scheduling  crop water requirements  rainfed irrigation  water management for agriculture  Cropwat.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2750

Calibrating and validating AquaCrop model for maize crop in Northern zone of Nigeria
Provedor de dados: 111
Autores: Ezekiel, Oiganji; Igbadun, H. E.; Mudiare, O.J.; Oyebode, M.A.
Farmers in the northern Guinea Savannah ecological zone of Nigeria have been experiencing declining crop yield due to erratic water supply. In recent times, research on better water management and interaction between effects of climate, soil and field management on crop production is fast gaining grounds with the use of models. Models can be used to predict the impact of long-term climate variability, thus providing an opportunity of better techniques compared with the traditional multi-location trials. This study presents the calibration and validation of AquaCrop model for drip irrigated maize (Zea mays). Calibration was done using data of 2013, while validation across seasons was done with data of 2014. The modelling efficiency of grain yield, biomass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering/ soil and water conservation engineering growth stage; Deficit irrigation; Drip irrigation; Water management; Modelling.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3755

Proposing an Appropriate Soil Water Content Estimation Technique for Iran
Provedor de dados: 111
Autores: Karimi, Hadi; Ghassemzadeh, Hamid Reza; Pashaee, Payam; Zarei Shahamat, Ebrahim.
Limitation of water resources is one of the major factors in the agricultural development of Iran. In recent years. Iran suffers from increases water consumption and drought conditions, This is why efficient water management in agriculture production becomes an inevitable requirement. One of the main aspects of water management in agriculture production is operating any type of irrigation system efficiently. A good on-farm irrigation water management requires a routine monitoring of soil water content (SWC). Recently a substantial number of different experimental methods in categories of direct, indirect, ground based and remote sensing have been developed to determine the SWC, and a large body of knowledge is now available on theory and applications. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Iran; Water management; Soil water content; Water estimation technique.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3054

Evaluation of chloride mass balance and recharge in agricultural lands in Nigeria
Provedor de dados: 111
Autores: Sobowale, A; Ramalan, A A; Mudiare, O J; Oyebode, M A.
Groundwater salinization studies and recharge estimation was carried out at the Irrigation Research Station, Kadawa, Nigeria. Groundwater samples from fifteen randomly selected piezometer locations were analyzed monthly for chloride using Mohr’s method for three years while recharge was estimated using the chloride mass balance (CMB) method. Groundwater chloride range from 22 - 91.4 mg/l, seasonal trend was identified with the hot dry season (April – June) having higher values than the wet season (July – October). Correlation analysis revealed chloride status that is not associated with one another in all soil types while salt build up was observed at the south western tip of the farmland indicating potential reduction of agricultural productivity. CMB...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Groundwater Hydrology and irrigation irrigation; Groundwater; Chloride mass; Recharge; Water management; Salinity.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3213

Evaluation of chloride mass balance and recharge in agricultural lands in Nigeria
Provedor de dados: 111
Autores: A Sobowale; Department of Agricultural and Bio-Resources Engineering, Federal University of Agriculture, Abeokuta, Nigeria; A A Ramalan; O J Mudiare; M A Oyebode.
Groundwater salinization studies and recharge estimation was carried out at the Irrigation Research Station, Kadawa, Nigeria. Groundwater samples from fifteen randomly selected piezometer locations were analyzed monthly for chloride using Mohr’s method for three years while recharge was estimated using the chloride mass balance (CMB) method. Groundwater chloride range from 22 - 91.4 mg/l, seasonal trend was identified with the hot dry season (April – June) having higher values than the wet season (July – October). Correlation analysis revealed chloride status that is not associated with one another in all soil types while salt build up was observed at the south western tip of the farmland indicating potential reduction of agricultural productivity. CMB...
Palavras-chave: Groundwater Hydrology and irrigation irrigation; Groundwater; Chloride mass; Recharge; Water management; Salinity.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3213

Proposing an Appropriate Soil Water Content Estimation Technique for Iran
Provedor de dados: 111
Autores: Hadi Karimi; University of Tabriz; Hamid Reza Ghassemzadeh; University of Tabriz; Payam Pashaee; University of Tabriz; Ebrahim Zarei Shahamat; University of Tabriz.
Limitation of water resources is one of the major factors in the agricultural development of Iran. In recent years. Iran suffers from increases water consumption and drought conditions, This is why efficient water management in agriculture production becomes an inevitable requirement. One of the main aspects of water management in agriculture production is operating any type of irrigation system efficiently. A good on-farm irrigation water management requires a routine monitoring of soil water content (SWC). Recently a substantial number of different experimental methods in categories of direct, indirect, ground based and remote sensing have been developed to determine the SWC, and a large body of knowledge is now available on theory and applications. The...
Palavras-chave: Iran; Water management; Soil water content; Water estimation technique.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3054

Water management improvements for agriculture by applying efficient crop schedules in the highland forest of Vilcabamba, Peru
Provedor de dados: 111
Autores: Enrique Meseth; National Sun Yat-Sen University; Jason C.S. Yu; National Sun Yat-Sen University, Department of Marine Environment and Engineering, Lien-Hai Road 70, 80424 Kaohsiung, Taiwan.
The current work is aimed to improve the water management for agriculture, by applying efficient crop schedules in Vilcabamba -and similar areas of the Andean highland forest-, which can satisfy most of the water requirements with rainfed irrigation and maximise the crops yield.  For this purpose, two field practices were carried out during the dry (September 2012) and wet season (February 2013) to measure rivers and canals flows with the velocity/area method.  Nineteen soil samples were collected on-site and analysed, presenting prevalent sandy loam and loam textures.  Cropwat programme and data on climate, crops and soil were used to estimate crop water requirements and scheme irrigation requirements, indicating that crop evapotranspiration is low due to...
Palavras-chave: Water management; Irrigation requirements Crop scheduling  crop water requirements  rainfed irrigation  water management for agriculture  Cropwat.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2750

Effects of riparian vegetation on the structure of the marginal aquatic habitat and the associated fish assemblage in a tropical Brazilian reservoir
Provedor de dados: 49
Autores: Beltrão,Gabriel de Barros Moreira; Medeiros,Elvio Sergio Figueredo; Ramos,Robson Tamar da Costa.
Riparian zones represent areas of strong biological, physical and chemical interaction between terrestrial and aquatic ecosystems. These areas are usually typified by high diversity of fauna, flora and environmental processes. The present study evaluates the littoral habitat structure and its fish fauna related to associations between presence and absence of natural riparian vegetal cover, in a reservoir in northeastern Brazil. Sampling was performed on marginal areas where riparian vegetation was present and where it had been removed for the plantation of sugar cane. For each type of marginal area three replicate sites were sampled during the wet season. Data on the habitat structure (submerged elements and substrate composition), fish and water quality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Riparian zone; Habitat structure; Water management; Conservation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000400003

Root growth and distribution in sugarcane cultivars fertigated by a subsurface drip system
Provedor de dados: 53
Autores: Ohashi,Augusto Yukitaka Pessinatti; Pires,Regina Célia de Matos; Ribeiro,Rafael Vasconcelos; Silva,André Luiz Barros de Oliveira.
Despite of the agronomic importance for water management, few studies of sugarcane roots have been performed under field conditions during the crop cycle. The aim of this study was to determine the cumulative root density (LA), root distribution on soil profile and the effective rooting depth (ERD) for three sugarcane cultivars using the minirhizotron method. A field experiment was done with sugarcane cultivars IACSP94-2094, IACSP94-2101 and SP79-1011 grown under subsurface drip fertigation. Soil chemical and physical characteristics were also evaluated. Root evaluations were taken at 38, 58, 123, 185 and 205 days during the second ratoon, considering the soil profile until 0.8 m depth. The highest LA and root growth rates were found up to 0.4 m soil layer...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp.; Irrigation; Water management; Effective rooting depth; Root growth rate.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000200131

Irrigation management methods for the production of bell pepper in agricultural substrates
Provedor de dados: 53
Autores: Santos,Irai Manuela Santana; Santos Júnior,Pedro Pereira; Silva,Rodrigo Rafael da; Oliveira,Gertrudes Macário de; Queiroz,Sérgio Oliveira Pinto de.
ABSTRACT This study’s objective was to assess the response and effectiveness of irrigation management systems for the production of bell pepper with different agricultural substrates, under protected conditions. The current study was conducted in a greenhouse located in Juazeiro, BA, in the northwest of Brazil. The experiment design was completely randomized in a split-plot system, with two irrigation treatments as the main plots (the drainage lysimeter and the Piché evaporimeter) and two substrates in each sub-plot (coconut fiber and pinus bark), with 5 replications per treatment. Harvest was conducted from 86 to 151 days after transplanting, and the following characteristics were evaluated: total, marketable and unmarketable yields, production per plant,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum; Water management; Evapotranspiration.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300510

Production flush of Agaricus blazei on Brazilian casing layers
Provedor de dados: 58
Autores: Colauto,Nelson Barros; Silveira,Adriano Reis da; Eira,Augusto Ferreira da; Linde,Giani Andrea.
This study aimed to verify the biological efficiency and production flushes of Agaricus blazei strains on different casing layers during 90 cultivation days. Four casing layers were used: mixture of subsoil and charcoal (VCS), lime schist (LSC), São Paulo peat (SPP) and Santa Catarina peat (SCP); and two genetically distant A. blazei strains. The fungus was grown in composted substratum and, after total colonization, a pasteurized casing layer was added over the substratum, and fructification was induced. Mushrooms were picked up daily when the basidiocarp veil was stretched, but before the lamella were exposed. The biological efficiency (BE) was determined by the fresh basidiocarp mass divided by the substratum dry mass, expressed in percentage. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Production flush; Agaricus brasiliensis; Casing layer; Water management; Agaricus subrufescens.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200026

Institutional Aspects of Sustainability for Irrigated Agriculture in Arid and Semi-Arid Regions
Provedor de dados: 117
Autores: del Callejo,Iván; Cossío,Vladimir.
Concerns, arguments, and approaches to sustainability are exposed in both scientific and technical irrigation literature which is based on the priority of food production and water preservation as a basic resource. Different approaches related to sustainable irrigated agriculture are identified beyond the technical considerations of irrigation as dealt with by very specialized scientific literature. These focus on socio-economic and institutional aspects of irrigation management. In this chapter, four main approaches are discussed: “New institutionalism” is an approach which emphasizes economic and financial issues such as cost recovery and the role of the market in water rights reallocation. A second approach, “Common pool resources management” highlights...
Tipo: Journal article
Palavras-chave: Institutional approaches; Irrigation institutions; Water management; Sustainable irrigation.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000500005

Design and Management of Irrigation Systems
Provedor de dados: 117
Autores: Holzapfel,Eduardo A; Pannunzio,Alejandro; Lorite,Ignacio; Silva de Oliveira,Aureo; Farkas,István.
Irrigation systems should be a relevant agent to give solutions to the increasing demand of food, and to the development, sustainability and productivity of the agricultural sector. The design, managing, and operation of irrigation systems are crucial factors to achieve an efficient use of the water resources and the success in the production of crops and orchards. The aim of this paper is to analyze knowledge and investigations that enable to identify the principal criteria and processes that allow improving the design and managing of the irrigation systems, based on the basic concept that they facilitate to develop agriculture more efficient and sustainable. The design and managing of irrigation systems must have its base in criteria that are relevant,...
Tipo: Journal article
Palavras-chave: Irrigation; Design; Water management; Operation systems.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000500003

Heuristic methods applied in reference evapotranspiration modeling
Provedor de dados: 64
Autores: Althoff,Daniel; Bazame,Helizani Couto; Filgueiras,Roberto; Dias,Santos Henrique Brant.
ABSTRACT The importance of the precise estimation of evapotranspiration is directly related to sustainable water usage. Since agriculture represents 70% of Brazil’s water consumption, adequate and efficient application of water may reduce the conflicts over the use of water among the multiple users. Considering the importance of accurate estimation of evapotranspiration, the objective of the present study was to model and compare the reference evapotranspiration from different heuristic methodologies. The standard Penman-Monteith method was used as reference for evapotranspiration, however, to evaluate the heuristic methodologies with scarce data, two widely known methods had their performances assessed in relation to Penman-Monteith. The methods used to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Machine learning; Model comparison; Water management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000300314

Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop
Provedor de dados: 64
Autores: Bilibio,Carolina; Carvalho,Jacinto de Assunção; Hensel,Oliver; Richter,Uwe.
Effects of different levels of water deficit applied during rapeseed crop development were assessed in a trial with metallic pots in greenhouse at the Department of Agricultural Engineering of Kassel University, Witzenhausen, Germany. A randomized block design was used with one cultivar (Ability Summer Rape) and three levels of water deficit (0, 30, and 60% of evapotranspiration) in three treatments and 20 replicates. Irrigation management was carried out through daily water balance, where ET = I - D; ET: evapotranspiration; I: irrigation; and D: drainage. The following evaluations were carried out weekly: stem diameter (mm); plant height (cm); number of leaves; number of branches and number of pods. At the end of the experiment, assessed total green...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water management; Irrigation; Water deficit.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400005