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Dynamic and stochastic analysis of environmental and natural resources AgEcon
Tsur, Yacov; Zemel, Amos.
Uncertainty enters the dynamic tradeoffs of environmental and natural resource management in a variety of ways and forms. In this chapter we review the various sources of uncertainty, the methodologies developed to account for them and implications regarding management of environmental and natural resources.
Tipo: Article Palavras-chave: Resource management; Environmental policy; Uncertainty; Catastrophic events; Irreversibility.; Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2012 URL: http://purl.umn.edu/120017
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Ecologically sustainable but unjust? Negotiating equity and authority in common-pool marine resource management Ecology and Society
Klain, Sarah C; University of British Columbia; s.klain.ubc@gmail.com; Beveridge, Rachelle; University of Victoria; rachelle.beveridge@gmail.com; Bennett, Nathan J; Univeristy of British Columbia; Visiting Research Fellow at University of Victoria; nathan.bennett@ubc.ca.
Under appropriate conditions, community-based fisheries management can support sound resource stewardship, with positive social and environmental outcomes. Evaluating indigenous peoples’ involvement in commercial sea cucumber and geoduck fisheries on the central coast of British Columbia, Canada, we found that the current social-ecological system configuration is relatively ecologically sustainable according to stock assessments. However, the current system also results in perceived inequities in decision-making processes, harvesting allocations, and socioeconomic benefits. As a result, local coastal resource managers envision a transformation of sea cucumber and geoduck fisheries governance and management institutions. We assessed the potential...
Tipo: Peer-Reviewed Reports Palavras-chave: Benthic fisheries; Common-pool resources; CPR design principles; Environmental governance; Indigenous or aboriginal peoples; Resource management; Small-scale fisheries; Social-ecological system framework.
Ano: 2014
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Economic Assessment of Selected Resource Management Techniques in Marginal Upland Agriculture: Case Studies of India AgEcon
Singh, Mahander; Munda, G.C..
This case study aims to analyze the impact of the most important agro-techniques, i.e., land leveling, field bunding, gypsum application and the sprinkler method of irrigation on the performance of pearl millet-wheat and pearl millet-mustard cropping systems with saline/alkaline water irrigation in a semi-arid region of India.
Tipo: Report Palavras-chave: Technology transfer; Water use; Resource management; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1998 URL: http://purl.umn.edu/32675
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Economic Assessment of Selected Resource Management Techniques in Marginal Upland Agriculture: Integrated Report and Proceedings of a Workshop, held in Seoul, Korea, May 20-22, 1998 AgEcon
Economic Assessment of Selected Resource Management Techniques in Marginal Upland Agriculture, by Min-Jae Kim; Message of the Executive Secretary, United Nation Economic and Social Commission for Asia and the Pacific, by Adrianus Moo; Opening Statement, by Sangwoo Park Opening Statement, by Haruo Inagaki; Opening Statement, by Kyuyong Suh; Current Status and Future Tasks in Marginal Upland Agriculture, by Sangwoo Park; Economic Assessment of Selected Management Practices for Efficient Use of Saline-Sodic Water in Arid and Semiarid Subtropical India, by Mahander Singh; Irrigated Ecosystem in India - Sustainability Issues, by R. L. Yadav; Economic Assessment of Selected Resource Management Techniques in Marginal Upland Agriculture of Mawlasnai, Meghalaya;...
Tipo: Report Palavras-chave: Marginal farms; Upland areas; Resource management; Economics; Environmental Economics and Policy; International Development; Resource /Energy Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/32736
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Effects of land use changes on bird composition along River Njoro: A watershed of Lake Nakuru OceanDocs
Shivoga, W.A.; Ngugi, F.M.; Muchiri, M.S.; Miller, S.N..
The rift valley lakes and their associated watersheds are home for millions of resident and migratory waterfowl. However, they have been recently challenged by land use changes. Lake Nakuru (Kenya) supports diverse biological resources of global, regional and national importance. It is saline and River Njoro is its main source of freshwater. Deforestation, cultivation and urbanization in vital watershed areas have altered the hydrological regime of River Njoro. There is need to preserve and restore aquatic, riparian and terrestrial biological diversity in the watershed to be able to restore and maintain ecological health of Lake Nakuru. The impact of these recent land use changes on birds in the River Njoro Watershed is of concern to conservationists. This...
Tipo: Proceedings Paper Palavras-chave: Land use; Aquatic birds; Urbanization; Resource conservation; Resource management; Migratory species; Environment management; Protected resources; Watersheds; Lake basins; Inland waters; Environmental effects; Species diversity; Riparian environments; Aquatic birds; Urbanization; Resource conservation; Resource management; Http://aims.fao.org/aos/agrovoc/c_8898; Http://aims.fao.org/aos/agrovoc/c_8088; Http://aims.fao.org/aos/agrovoc/c_6523; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2006 URL: http://hdl.handle.net/1834/1499
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ENVIRONMENTAL POLICY ANALYSIS AND INSTRUMENTS FOR BIODIVERSITY CONSERVATION: A REVIEW OF RECENT ECONOMIC LITERATURE AgEcon
Bhattarai, Madhusudan; Hammig, Michael D..
This paper provides a synthesis of recent literature dealing with the institutional environment, policy framework, and economic instruments used in policy analysis related to the conservation and sustainable use of biodiversity resources. The paper analyzes the economic consequences of alternative policy options and summarizes the application of these economic issues in the formulation of biodiversity protection policy. The paper also concludes that the proper understanding of underlying institutions and, if needed, institutional reforming procedures are also required to provide appropriate incentive structures for conservation and sustainable use of biodiversity resources. Illustrations of these principles and examples are taken from published accounts...
Tipo: Working or Discussion Paper Palavras-chave: Biodiversity; Conservation; Resource management; Environmental Economics and Policy; Q2; Q3.
Ano: 1998 URL: http://purl.umn.edu/18810
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Estudio biológico pesquero de centolla y centollón en la XII Región OceanDocs
Guzmán, L.; Daza, E.; Canales, C.; Cornejo, S.; Quiroz, J.C.; González, M..
El estudio estuvo orientado a disponer de un diagnóstico de la pesquería de centolla (Lithodes santolla) y centollón (Paralomis granulosa) en la región de Magallanes y Antártica Chilena sobre la base de antecedentes bilógico pesqueros recogidos en campañas específicas de pesca y puertos de desmbarque, además de evaluar las medidas de administración vigentes y proponer eventuales nuevas medidas. Se inició el 26 de agosto de 2002 y la toma de información de terreno terminó a fines de noviembre de 2003.
Tipo: Report Palavras-chave: Crustacean fisheries; Catch/effort; Resource management; Stock assessment; Stock assessment; Resource management; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2004 URL: http://hdl.handle.net/1834/1730
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Etude et modélisation de la dynamique des populations de bivalves en élevage (Crassostrea gigas et Mytilus galloprovincialis) dans le bassin de Thau (Méditerranée, France) et des ascidies solitaires associées ArchiMer
Gangnery, Aline.
The total standing stock of bivalves cultured in Thau Lagoon (France) that is mainly constituted of the Pacific oyster, Crassostrea gigas, and the Mediterranean mussel, Mytilus galloprovincialis, vary between 14,000 and 20,000 tons within a year. These variations were attributed to the rearing cycle of molluscs in the lagoon but also to their growth performances. Oysters cultured in the Thau Lagoon presented the best growth rate ever reported whereas trophic conditions are low : mean concentrations in organic particulate matter and total chlorophyll a averaged 1 mg.l-1 and 1.2 µg.l-1, respectively. The development of a growth model shows that temporal pattern (i.e. seasonality) of bivalve growth is explained by water temperature and spatial pattern is...
Tipo: Text Palavras-chave: Lagoon ecosystem; Resource management; Rearing strategies; Production; Standing stock; Hydrobiology; Growth; Shellfish culture; Ascidiella aspersa; Mussel; Oyster; Ecosystème lagunaire; Gestion des ressources; Stratégies d'élevage; Production; Stock; Hydrobiologie; Croissance; Conchyliculture; Ascidiella aspersa; Moule; Huître.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-102.pdf
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Evaluación y manejo de praderas de feofitas en la Provincia de Arauco OceanDocs
Ávila, M.; Cáceres, J.; Núñez, M.; Camus, P.; Romo, H.; Pérez, R..
El objetivo general del proyecto fue evaluar los stocks y proponer alternativas de explotación de las praderas de feofitas (Durvillaea antarctica y Macrocystis pyrifera) de la Provincia de Arauco, VIII Región. Este objetivo se logró a través de los siguientes objetivos específicos: identificar y caracterizar los algares de Durvillaea y Macrocystis de la Provincia de Arauco; determinar el estado poblacional de los algares identificados; analizar alternativas de explotación y acciones de manejo para los algares identificados en la zona de estudio de acuerdo a la realidad local; proponer regímenes de explotación y acciones de manejo, para los algares identificados en la zona de estudio de acuerdo a la realidad local.
Tipo: Report Palavras-chave: Algae; Stock assessment; Exploitation; Resource management; Stock assessment; Algae; Resource management; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2005 URL: http://hdl.handle.net/1834/1810
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Fifteen Weddings and a Funeral: Case Studies and Resilience-based Management Ecology and Society
Anderies, John M; Arizona State University; m.anderies@asu.edu; Walker, Brian H; CSIRO Sustainable Ecosystems; Brian.Walker@csiro.au; Kinzig, Ann P; Arizona State University; Ann.Kinzig@asu.edu.
Tipo: Peer-Reviewed article Palavras-chave: Resilience; Social-ecological systems; Resource management.
Ano: 2006
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Financing irrigation services: a literature review and selected case studies from Asia AgEcon
Small, Leslie E.; Adriano, Marietta S.; Martin, Edward D.; Bhatia, Ramesh; Shim, Young K.; Pradhan, Prachanda.
This study results from a two years' intensive research into a hitherto unexplored area of irrigation management - the aspect of financing irrigation in some Asian countries. The authors have analyzed the relationship between investment costs, level of irrigation fees, cropping intensity, type of crop, and secondary income. The studies conclude that the quality of irrigation system operations and maintenance is affected not only by the amount of resources made available to operate and maintain systems, but also by the institutional arrangements under which they are provided.
Tipo: Book Palavras-chave: Irrigation management; Irrigation operation; Financing; Resource management; Rehabilitation; User charges; Maintenance costs; Operating costs; Agricultural Finance; Farm Management.
Ano: 1989 URL: http://purl.umn.edu/114041
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Flavor or Forethought: Tuhoe Traditional Management Strategies for the Conservation of Kereru (Hemiphaga novaeseelandiae novaeseelandiae) in New Zealand Ecology and Society
Jones, Christopher J; Landcare Research; jonesc@landcareresearch.co.nz; Doherty, James; Tuhoe Tuawhenua Trust;.
Traditional knowledge from indigenous cultures about wildlife populations can offer insights beneficial for management in the face of global climate change. Semistructured interviews and workshops conducted with Maori elders from the Tuhoe tribe in the Te Urewera region of New Zealand provided knowledge about traditional management strategies for New Zealand pigeon (Hemiphaga novaeseelandiae novaeseelandiae), known locally as kereru, as well as signals of changes in local climate patterns and how these influence kereru. We used a population simulation exercise to demonstrate the feasibility of a harvest management strategy used by the Tuhoe to sustain kereru. Our models also indicated how potential changes in climate and subsequent decisions about harvest...
Tipo: Peer-Reviewed Reports Palavras-chave: Customary harvest; Mauri; Hemiphaga novaeseelandiae novaeseelandiae; New Zealand; Resource management; Traditional knowledge; Podocarpus ferrugineus.
Ano: 2009
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Global Partnerships In Tanzania’s Marine Resource Management: Ngos, The Private Sector, And Local Communities OceanDocs
Levine, A..
While Tanzania’s system of designating terrestrial parks and protected areas has been historically exclusionary, recent conservation initiatives are acknowledging the need to involve local people in these programs and to provide benefits to resource-dependent communities. New policies for protecting marine resources are also following this approach. Government agencies, in collaboration with external institutions, are now experimenting with systems of community-based marine resource management through the establishment of non-exclusionary Marine Protected Areas, involving local user groups in both management and benefit regimes. The fugitive nature of marine resources, together with diffuse user groups that cannot be defined as traditional “communities,”...
Tipo: Working Paper Palavras-chave: Marine resources; Resource management.
Ano: 2002 URL: http://hdl.handle.net/1834/732
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Guide méthodologique pour l'élaboration des plans de gestion des aires Marine Protégées en Afrique de l'Ouest OceanDocs
Rizk, Charbel; Semelin, Julien; Karibuhoye, Charlotte.
Fondation Internationale du Banc d'Arguin (FIBA) dans le cadre du Programme Régional de Conserbation de la zone Marine et Côtière en Afrique de l'Ouest (PRCM)
Tipo: Working Paper Palavras-chave: Resource management; Marine environment; Natural resources.
Ano: 2011 URL: http://hdl.handle.net/1834/4576
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Impact of agro-industrial activities on the water quality of River Nyando, Lake Victoria Basin, Kenya OceanDocs
Raburu, P. O.; Okeyo-Owuor, J.B..
The impact of agro-industrial activities on the water quality within River Nyando, Lake Victoria Basin (Kenya) was studied at different hierarchical levels between August 1997 and June 1999. Triplicate water samples were collected on a monthly basis from various stations ranging from the source to the mouth of the river and analyzed for selected physical and chemical water quality parameters using standard analytical methods. Statistical analysis was performed using MINITAB and STATISTICA computer packages. Agricultural land use was found to be the major factor contributing to changes in water quality. Salinity and pH varied at river basin scale, turbidity, TDS and conductivity at catchment scale, while DO, alkalinity and pH at subcatchment and river reach...
Tipo: Proceedings Paper Palavras-chave: Water quality; Environmental impact; Industrial wastes; Inland waters; Rivers; Anthropogenic factors; River basin management; Statistical analysis; Physicochemical properties; Land use; Limnological data; Environmental monitoring; Resource management; Environment management; Agricultural pollution; Water quality; Environmental impact; Rivers; Statistical analysis; Land use; Environmental monitoring; Industrial wastes; Inland waters; Anthropogenic factors; Physicochemical properties; Resource management; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_7378; Http://aims.fao.org/aos/agrovoc/c_4182; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_11763; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_13330; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2006 URL: http://hdl.handle.net/1834/3501
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Implications of climate change on the management of Rift Valley lakes in Kenya. The case of lake Baringo OceanDocs
Ngaira, Josephine K..
Climate patterns of the World became very variable during the last half of the twentieth century. Causes of this variability/change have been identified as: Sun Spot activity, ozone depletion, decline in the solar beam, with the more pronounced especially in Africa being Increased atmospheric carbondioxide, and albedo change due to anthropogenic factors. The most affected weather elements by the above mentioned factors particularly in the tropics are Rainfall and Temperature, and the climatic environments most affected by the named weather elements are the arid and semi-arid lands which are already moisture constrained. The rift valley in Kenya, where most of the lakes are located experience Arid and Semi-Arid climate. The lakes located in this region are...
Tipo: Proceedings Paper Palavras-chave: Climatic changes; Resource management; Lake basins; Anthropogenic factors; Inland waters; Environmental impact; Water policy; Lake dynamics; Arid environments; Rainfall; Water resources.
Ano: 2006 URL: http://hdl.handle.net/1834/1472
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Indigenous Māori values and perspectives to inform freshwater management in Aotearoa-New Zealand Ecology and Society
Harmsworth, Garth; Tribal: Te Arawa, Ngāti Tūwharetoa, Ngāti Raukawa; Landcare Research; HarmsworthG@landcareresearch.co.nz; Awatere, Shaun; Tribal: Ngāti Porou; Landcare Research; AwatereS@landcareresearch.co.nz; Robb, Mahuru; Tribal: Ngāti Awa, Ngāti Ranginui; Landcare Research; RobbM@landcareresearch.co.nz.
In response to widespread water quality and quantity issues, the New Zealand Government has recently embarked on a number of comprehensive freshwater management reforms, developing a raft of national discussion and policy documents such as “Freshwater Reform 2013 and Beyond” and a National Policy Statement for freshwater management (NPS-FM 2014). Recent resource management reforms and amendments (RMA 2014), based on previous overarching resource management legislation (RMA 1991), set out a new approach and pathway to manage freshwater nationwide. Internationally, there is an increasing trend to engage with indigenous communities for research and collaboration, including indigenous groups as active participants in resource management...
Tipo: Peer-Reviewed Reports Palavras-chave: Cogovernance; Collaboration; Comanagement; Coplanning; Cultural monitoring; Cultural values; Indigenous Mā Ori; Mā Ori knowledge; Mā Tauranga Mā Ori; Resource management.
Ano: 2016
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Information-related courses in a new international study programme in ecological marine management OMA
Nieuwenhuysen, P..
This contribution focuses on some courses that are related to information, in a specialized study programme in ecological marine management, named ECOMAMA. The ECOMAMA postgraduate specialized study programme is organized mainly in the faculty of science of the Vrije Universiteit Brussel (V.U.B.) in Belgium. It started in 1997. It is international in the sense that many students come from developing countries besides a few students from Belgium. It is an inter-university programme in the sense that the professors come from many universities and scientific institutes in Belgium. Normally it takes two years to obtain the degree.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conferences; Environment management; Information centres; Information handling; Information services; Libraries; Resource management.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=405
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Integrating taxon-based, trait-based and trophic-network approaches to study community dynamics in an exploited ecosystem, the Celtic Sea ArchiMer
Merillet, Laurene.
Marine ecosystems face many pressures, the main ones being fishing and climate change. These pressures do not have the same consequences on the different facets of biodiversity, e.g. on taxa, traits and networks, and their study is necessary for the implementation of an ecosystem approach to fisheries. The Celtic Sea is a very important fishing area for European fisheries, with a specific richness greater than adjacent areas. Based on a time series from 2000 to 2016, I have studied the spatio-temporal dynamics of 101 species of the ecosystem. Over this period, taxonomic biodiversity was stable, and the importance of fishing as a structuring variable for communities decreased after 2009, and was lower than the environment (depth, chlorophyll a concentration...
Tipo: Text Palavras-chave: Approche écosystémique des pêches; Dynamiques spatio-temporelles; Traits d’histoire de vie; Réseaux trophiques; Gestion des ressources; Ecosystem approach to fisheries; Spatio-temporal dynamics; Community ecology; Life-history traits; Food webs; Resource management.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00666/77806/79980.pdf
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Investigación y manejo de praderas de luga roja en la XII Región OceanDocs
Ávila, M.; Cáceres, J.; Núñez, M.; Camus, P.; Pavez, H.; Cortés, H; González, J.; Tapia, C.; Mejías, P.; Cornejo, S.; Romo, H.; Candia, A..
El objetivo del proyecto es desarrollar un plan de manejo del recurso luga roja. Este objetivo se logra a través de los siguientes objetivos específicos: determinar el (los) períodos óptimos de cosecha para las praderas de la XII Región, que permitan maximizar la biomasa obtenida conservando la capacidad productiva del recurso; diseñar y evaluar estrategias de manejo del recurso en la XII Región.
Tipo: Report Palavras-chave: Algae; Biomass; Reproduction; Resource management; Harvesting; Biomass; Algae; Reproduction; Resource management; Harvesting; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_3500.
Ano: 2004 URL: http://hdl.handle.net/1834/1736
Registros recuperados: 78
Primeira ... 1234 ... Última
 

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