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guan gai xi tong zhong de gou qu shi fou xu yao chen qi
Author(s): 
Pages: 14-16
Year: Issue:  11
Journal: EXPRESS WATER RESOURCES & HYDROPOWER INFORMATION

Keyword:  渠灌区自流灌溉渠道衬砌灌溉系统渗漏地下水位印度;
Abstract: 印度西北部广大地区已纳入自流灌溉计划的控制范围。这使得农业生产大大增加,但也担心地下水位的上升和有关含盐量增大。这些因素危及农业生产的持久性。地下水位的升高是地表径流的深层渗透和灌溉系统的渗漏引起的。在巴克拉灌溉系统中,业已查明1981~1991年地下水位几乎以2 mm/d的速度不断上升。
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