The Inter-Relationship Between Irrigation, Drainage and the Environment in the Aral Sea Basin PDF Free

The Inter-Relationship Between Irrigation, Drainage and the Environment in the Aral Sea Basin PDF
By:M.G. Bos
Published on 2012-12-06 by Springer Science & Business Media

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.

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Book ID of The Inter-Relationship Between Irrigation, Drainage and the Environment in the Aral Sea Basin's Books is q6HIAwAAQBAJ, Book which was written byM.G. Boshave ETAG "1kkDV/zVzCA"

Book which was published by Springer Science & Business Media since 2012-12-06 have ISBNs, ISBN 13 Code is 9789400917705 and ISBN 10 Code is 9400917708

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