Estimating Productivity Of Water At Different Spatial Scales Using Simulation Modeling
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Estimating Productivity Of Water At Different Spatial Scales Using Simulation Modeling
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Author : Peter Droogers
language : en
Publisher: IWMI
Release Date : 2001
Estimating Productivity Of Water At Different Spatial Scales Using Simulation Modeling written by Peter Droogers and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Hydrologic models categories.
A clear understanding of the current water balance is required to explore options for water saving measures. However, measurement of all the terms in the water balance is infeasible in terms of spatial and temporal scale, but hydrological simulation models can fill the gap between measured and required data. For a basin in Western Turkey, simulation modeling at three different scales, field, irrigation scheme and basin scale, was performed to obtain all terms of the water balance. These water balance numbers were used to calculate the Productivity of Water at the three spatial levels distinguished to assess the performance of the systems.
Land And Water Productivity Of Wheat In The Western Indo Gangetic Plains Of India And Pakistan
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Author : Intizar Hussain
language : en
Publisher: IWMI
Release Date : 2003
Land And Water Productivity Of Wheat In The Western Indo Gangetic Plains Of India And Pakistan written by Intizar Hussain and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Agricultural productivity categories.
The purpose of this study is to analyze variations in wheat yields and to assess the range of factors affecting wheat yields and profitability of wheat production in the selected irrigation systems in India and Pakistan. The study attempts to identify constraints and opportunities for closing the existing yield gaps. It is hypothesized that substantial gains in aggregate yields can be obtained by improved water management practices at the farm and irrigation-system levels.
Poverty Dimensions Of Irrigation Management Transfer In Large Scale Canal Irrigation In Andra Pradesh And Gujarat India
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Author : Barbara C. P. Koppen
language : en
Publisher: IWMI
Release Date : 2002
Poverty Dimensions Of Irrigation Management Transfer In Large Scale Canal Irrigation In Andra Pradesh And Gujarat India written by Barbara C. P. Koppen and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Farms, Size of categories.
A growing body of evidence on the impacts of irrigation management transfer (IMT) shows that IMT risks aggravating rural poverty. For governments that aim to continue irrigation management while ensuring that it contributes to poverty alleviation, a "pro-poor" mode of IMT needs to be designed and implemented. That is, a mode of IMT that benefits poor farmers while benefiting non-poor farmers equally, or perhaps to a lesser degree. The present research explores the scope for pro-poor modes of IMT in canal irrigation, focusing on large-scale canal irrigation schemes in India.
Water Scarcity And Managing Seasonal Water Crisis
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Author : R. Sakthivadivel
language : en
Publisher: IWMI
Release Date : 2001
Water Scarcity And Managing Seasonal Water Crisis written by R. Sakthivadivel and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Irrigation categories.
Coping with scarcity of water supply for managing irrigation under uncertain and inadequate conditions has become part and parcel of many irrigation systems in the semiarid tropics of Asia. Based on a case study of the Kirindi Oya Irrigation and Settlement Project (KOISP) in southern Sri Lanka, this report provides evidence of the uncertain and inadequate inflow into the reservoir and its impact on the seasonal planning.
Hydronomic Zones For Developing Basin Water Conservation Strategies
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Author : D. J. Molden
language : en
Publisher: IWMI
Release Date : 2001
Hydronomic Zones For Developing Basin Water Conservation Strategies written by D. J. Molden and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Irrigation categories.
In this report, the concept and procedures of hydronomic (hydro water + nomus management) zones are introduced. A set of six hydronomic zones are developed and defined based on key differences between reaches or areas of river basins. These are the: Water Source Zone, Natural Recapture Zone, Regulated Recapture Zone, Stagnation Zone, Final Use Zone, and Environmentally Sensitive Zone. The zones are defined based on similar hydrological, geological and topographical conditions and the fate of water outflow from the zone. In addition, two conditions are defined which influence how water is managed: whether or not there is appreciable salinity or pollution loading; and whether or not groundwater that can be used for utilization or storage is present. Generic strategies for irrigation for four water management areas, the Natural Recapture, Regulated Recapture, Final Use, and Stagnation Zones, are presented. The Water Source Zone and Environmentally Sensitive Zone are discussed in terms of their overall significance in basin water use and management.
Wells And Welfare In The Ganga Basin
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Author : Tushaar Shah
language : en
Publisher: IWMI
Release Date : 2001
Wells And Welfare In The Ganga Basin written by Tushaar Shah and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Groundwater categories.
This report analyzes the history of groundwater development in the eastern Uttar Pradesh region over the 1950-1990 period. Its main conclusion is that the story of groundwater-based livelihood creation in the Ganga basin is one of failed public initiatives and successful adaptive responses by private agents. However, tube-well-induced agrarian dynamism in eastern Uttar Pradesh and north Bihar in recent years can spread to the entire basin if public policy makers learn correct lessons from the experience of these two subregions.
Small Irrigation Tanks As A Source Of Malaria Mosquito Vectors
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Author : Felix P. Amerasinghe
language : en
Publisher: IWMI
Release Date : 2001
Small Irrigation Tanks As A Source Of Malaria Mosquito Vectors written by Felix P. Amerasinghe and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Irrigation categories.
Thousands of small irrigation reservoirs (tanks) exist in rice ecosystems in malarious regions of south Asia. The potential of these tanks to generate malaria-transmitting mosquitoes has not been adequately evaluated. Through a study of nine small irrigation tanks in north-central Sri Lanka, this report provides an assessment of the capacity of tanks to generate malaria and nuisance mosquitoes, factors that contribute to mosquito generation, and measures that could ameliorate the problem.
Center Commissioned External Review Of Iwmi Research Theme 1 Agricultural Water Management
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Author : John Langford
language : en
Publisher: IWMI
Release Date :
Center Commissioned External Review Of Iwmi Research Theme 1 Agricultural Water Management written by John Langford and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
9789290908487
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Author : Giordano, Meredith
language : en
Publisher: Colombo, Sri Lanka: International Water Management Institute (IWMI) Washington, DC, USA: The World Bank
Release Date : 2017-06-01
9789290908487 written by Giordano, Meredith and has been published by Colombo, Sri Lanka: International Water Management Institute (IWMI) Washington, DC, USA: The World Bank this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-01 with Technology & Engineering categories.
Institutional Alternatives In African Smallholder Irrigation
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Author : Tushaar Shah
language : en
Publisher: IWMI
Release Date : 2002
Institutional Alternatives In African Smallholder Irrigation written by Tushaar Shah and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Farms, Small categories.
This report reviews several decades of global experience in transferring management of government-run irrigation systems to farmer associations or other nongovernmental agencies in an attempt to apply the lessons of success to the African smallholder irrigation context.