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| Registros recuperados: 158 | |
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| 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... |
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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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 158 | |
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