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