The reliability improvement in irrigation services: Application of rotational water distribution to tertiary canals in Central Asia PDF Download
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Author: Abdullaev, Iskandar, Ul Hassan, Mehmood, Manthrithilake, Herath, Yakubov, Murat
Publisher: IWMI
ISBN: 9290906391
Category : Irrigation scheduling
Languages : en
Pages : 31
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Book Description
his report addresses a specific context of massive inequity and unevenness in water allocation and distribution experienced presently by the water users in transitional Central Asian economies, as a result of broad-scale fragmentation of the previously large farms. The report describes action research aimed at making water distribution at the tertiary level more reliable, transparent and equitable.
Author: Abdullaev, Iskandar, Ul Hassan, Mehmood, Manthrithilake, Herath, Yakubov, Murat
Publisher: IWMI
ISBN: 9290906391
Category : Irrigation scheduling
Languages : en
Pages : 31
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Book Description
his report addresses a specific context of massive inequity and unevenness in water allocation and distribution experienced presently by the water users in transitional Central Asian economies, as a result of broad-scale fragmentation of the previously large farms. The report describes action research aimed at making water distribution at the tertiary level more reliable, transparent and equitable.
Author: Giordano, Meredith, Samad, Madar, Namara, Regassa
Publisher: IWMI
ISBN: 9290906502
Category : Irrigation
Languages : en
Pages : 37
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Book Description
The purpose of this paper is to summarize IIMI/IWMI’s past research and interventions related to irrigation management transfer and to document, to the extent possible, the academic, policy, and technical outcomes of these efforts. The application of a range of direct and indirect measurement techniques suggests an overall positive contribution from IWMI to IMT theory and application.
Author: Lankford, B. A
Publisher: IWMI
ISBN: 9290906618
Category : Great Ruaha River Watershed (Tanzania)
Languages : en
Pages : 43
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Book Description
Study draws on experiences in the catchment of the Great Ruaha River in Tanzania.
Author: Overgaard, Hans
Publisher: IWMI
ISBN: 9290906448
Category : Malaria
Languages : en
Pages : 72
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Book Description
The purpose of this study was to identify risk areas in Thailand where insecticide resistance in malaria mosquitoes might develop as a consequence of crop protection activities in agriculture. The study provides guidelines on how to delineate risk areas. A review of insecticide resistance in disease vectors and the potential role of agricultural insecticides is presented.
Author: Shavkat Kenjabaev
Publisher: Cuvillier Verlag
ISBN: 3736948654
Category : Science
Languages : en
Pages : 204
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Book Description
The complex of ecological problems in Central Asia, especially in Uzbekistan, is linked to rapid ongoing demographic and economic processes. However, geographical location has its own peculiarity. Aridity of the climate in Uzbekistan makes water resources as main limiting factor for sustainable economic development (Chub et al., 1998; RECCA, 2011). Annual precipitation, ranging from 80-200 mm in plain to 300-400 mm in foothills and 600-800 mm in mountain rangelands (Chub, 2007), is considerably lower than the evaporation demand of atmosphere (FAO IPTRID et al., 2004). Thus, agriculture, accounting about 90% withdrawal of total available water resources in Uzbekistan, is impossible without irrigation (Qadir et al., 2009). Moreover, agricultural production is highly vulnerable to climate change (Lioubimtseva & Henebry, 2009). High fluctuation of precipitation and temperature increase may influence land use in irrigated lands, create difficulties in water management at regional and local scales, and increase competition of scarce water resources among water users in various sectors.
Author: Biggs, Trent, Gaur, Anju, Scott, C., Thenkabail, Prasad, Gangadhara Rao, Parthasaradhi, Gumma, Murali Krishna, Acharya, Sreedhar, Turral, Hugh
Publisher: IWMI
ISBN: 9290906634
Category : Irrigation
Languages : en
Pages : 48
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Book Description
Discharge from the Krishna River into the ocean decreased by 75 percent from 1960-2005, and was zero during a recent multi-year drought. This paper describes the physical geography and hydrology of the Krishna Basin, including runoff production and a basic water account based on hydronomic zones. More than 50 percent of the basin’s irrigated area is groundwater irrigation, which is not currently included in inter-state allocation rules. Future water allocation will require inclusion of the interactions among all irrigated areas, including those irrigated by groundwater and surface water.
Author: V. Y. Smakhtin
Publisher: IWMI
ISBN: 9290906499
Category : River engineering
Languages : en
Pages : 46
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Book Description
"CGIAR Challenge Program on Water & Food; Future Harvest"--Cover.
Author: Arlene B. Inocencio
Publisher: IWMI
ISBN: 9290906588
Category : Irrigation projects
Languages : en
Pages : 86
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Book Description
High irrigation investment costs together with declining world prices for food and the failures of a number of high profile past irrigation projects are the main reasons for the reluctance of development agencies and governments in sub-Saharan Africa to invest more resources in irrigation. This study aims to systematically establish whether costs of irrigation projects in sub-Saharan Africa are truly high, determine the factors which influence costs and performance of irrigation projects, and recommend cost-reducing and performance-enhancing options to make irrigation investments in the region more attractive. It analyzes 314 irrigation projects implemented from 1967 to 2003 in 50 countries in Africa, Asia, and Latin America funded by the World Bank, African Development Bank and the International Fund for Agricultural Development.
Author: Murat Arsel
Publisher: Routledge
ISBN: 113523633X
Category : Business & Economics
Languages : en
Pages : 363
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Book Description
This co-edited volume provides a unified scholarly treatment of intensifying debates on the relationship between water scarcity and environmental security in Central Eurasia. Using discussions of sustainable rural development as its conceptual backdrop, the chapters in this volume combine solid empirical investigation with critical analysis of key concepts such as ‘scarcity’, ‘expert knowledge’, and ‘efficiency’. The central theme emerging from the contributions emphasizes the need to reevaluate accepted wisdom in resource studies that considers distributional conflicts over water usage as inherently zero-sum outcomes in which one player’s gains inevitably correspond to another player’s losses. Instead, the empirical and critical analyses in this book demonstrate that effective management of water resources can be re-conceptualized as the basis for regional cooperation and sustainable rural development.
Author: Prasad Srinivasa Thenkabail
Publisher: IWMI
ISBN: 9290906464
Category : Agricultural mapping
Languages : en
Pages : 78
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Book Description
This research report presents the results of a global analysis of multi-temporal time series at nominal 10 kilometer pixel resolution. Statistics of irrigation at country level are derived from these maps for different seasons and for the entire year (annualized) for the nominal year of 1999. Three methods of area abstraction are used and compared, and three methods of accuracy assessment are applied. The annualized irrigated areas of the world at the end of the last millennium were about 480 Mha of which there were 263 Mha for season 1, 176 Mha for season 2, and 41 Mha for continuous cropping. Of this, Asia alone accounts for 78 percent (375 Mha) with 59 percent from China and India. The country statistics are compared with FAO country-level statistics (see Annex I). The IWMI GIAM 10 km V2.0 map were tested based on 3 sources of independent data resulting in accuracies between 84 and 91 percent with errors of omission not exceeding 16 percent and errors of commission less than 21 percent. The total area available for irrigation (TAAI; the nearest equivalent to FAO’s equipped area) was 412 Mha.
