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Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251040713
Category : Technology & Engineering
Languages : en
Pages : 244
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Book Description
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251040713
Category : Technology & Engineering
Languages : en
Pages : 244
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Book Description
Author: Vitaly Kimstach
Publisher: CRC Press
ISBN: 9780419239208
Category : Technology & Engineering
Languages : en
Pages : 648
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Book Description
A Water Quality Assessment of the Former Soviet Union focuses on water quality issues using examples from around the former Soviet Union. It covers the background to the natural water resources and composition of surface and ground waters in the former Soviet Union and then proceeds to examine the influence of human activity on those resources and water quality systems. With more than one hundred line illustrations and tables, the long-term detailed case studies of the Lower Don Basin, the Amu Darya river, the Rybinsk reservoir, the Dnieper river, Lakes Baikal and Ladoga, and water resources in Moscow and the Moscow region, this will enable valuable lessons in environmental management to be learnt. A Water Quality Assessment of the Former Soviet Union is a valuable source of up-to-date information and case studies for the professional in government, national and international organisations, and water utilities. It will be a useful reference in research institutes and university libraries.
Author: Reinhard F. Hüttl
Publisher: Springer
ISBN: 3319189719
Category : Technology & Engineering
Languages : en
Pages : 300
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Book Description
This book presents the results of the Interdisciplinary Research Group "Society – Water – Technology" of the Berlin-Brandenburg Academy of Sciences and Humanities. It describes interdisciplinary evaluation criteria for major water engineering projects (MWEPs) and portrays an application to the Lower Jordan Valley (Middle East) and the Fergana Valley (Central Asia). Both areas are characterised by transboundary conflicts, by challenges due to demographic and climate change and by political and societal pressures. Based on the findings, the book provides recommendations for science and political decisions makers as well as for international financing institutions. In addition, it outlines research gaps from an interdisciplinary perspective. In the past, MWEPs have been used as an instrument to cope with the demands of growing populations and to enhance development progress. Experiences with MWEPs have shown that a purely technical approach has not always brought about the desired results. In many cases, MWEPs have even resulted in negative implications for society and environment. Therefore, improved management strategies and enhanced technologies for a sustainable water resource management system are a prerequisite to meet present and future challenges. And, moreover, the continuous evaluation and optimisation of these measures is, likewise, a must.
Author:
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 608
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Book Description
Author: United States. Central Intelligence Agency
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 68
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Book Description
Author:
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 496
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Book Description
Volumes for 2002 accompanied by CD-ROM containing v.2 of the congress, and another CD-ROM containing the work of the 18th congress.
Author: Food and Agriculture Organization of the United Nations
Publisher:
ISBN:
Category : Alkali lands
Languages : en
Pages : 540
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Book Description
Author: M.G. Bos
Publisher: Springer Science & Business Media
ISBN: 9400917708
Category : Technology & Engineering
Languages : en
Pages : 238
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Book Description
The irrigated area in the Aral Sea basin totals about 7. 5 million hectare. Part of the water supplied to this area is consumed by the irrigated crop; the remainder of the supplied water drains to the groundwater basin, to downstream depressions, or back to the rivers. During its use, however, this drained part of the water accumulates salts and chemicals. The disposal of this polluted water causes a variety of (environmental) problems. If the percentage consumed water of the total water supply to an irrigated area (the so-called overall consumed ratio) can be increased, less water needs to be drained. This alleviates part of the related (environmental) problems. Further, if the overall consumed ratio for the above 7. 5 million hectare is improved, less water needs to be diverted from the rivers. Hence, more water can flow towards the Aral Sea. As mentioned above, part of the non-consumed irrigation water drains to the groundwater basin. Commonly, the natural discharge capacity of this basin is insufficient to handle this imported water. As a result, the groundwater table rises towards the land surface causing waterlogging. In (semi-)arid zones this waterlogging triggers a soil salinity problem resulting to a significant reduction in crop yields. The artificial increase of the discharge capacity, and lowering of the groundwater table, solves the soil salinity problem.
Author:
Publisher:
ISBN:
Category : Soil conservation
Languages : en
Pages : 680
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Book Description
Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 64
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Book Description
