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Study on Wetland in Yinnan Irrigation District in Ningxia
Author(s): 
Pages: 34-36,40
Year: Issue:  10
Journal: WATER SAVING IRRIGATION

Keyword:  湿地农田非点源污染银南灌区;
Abstract: 宁夏银南灌区湿地季节性变化明显,受灌溉水的影响极大,随着节水灌溉等缓解水资源矛盾措施的实施,湿地已经出现萎缩,这必然加大农田排水中氮磷等化合物的含量.从湿地功能的角度出发,结合湿地的成因、概况、湿地与农田的关系,阐述湿地存在的必要性,并建议在目前水资源紧缺情况下给湿地留出一定的水量,为恢复湿地功能、发挥湿地效益提供前提,也为减少农业非点源污染、保护生态环境奠定基础.
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