| 书目名称 | The Inter-Relationship Between Irrigation, Drainage and the Environment in the Aral Sea Basin | | 编辑 | Marinus G. Bos | | 视频video | | | 丛书名称 | NATO Science Partnership Subseries: 2 | | 图书封面 |  | | 描述 | 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 sal | | 出版日期 | Book 1996 | | 关键词 | Groundwater; Irrigation; development; ecosystem; environment; rice; salinity; water; water management; water | | 版次 | 1 | | doi | https://doi.org/10.1007/978-94-009-1770-5 | | isbn_softcover | 978-94-010-7290-8 | | isbn_ebook | 978-94-009-1770-5Series ISSN 1389-1839 | | issn_series | 1389-1839 | | copyright | Kluwer Academic Publishers 1996 |
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