摘要
针对宁夏引黄灌区退水对地表水体的污染问题,运用灰色聚类法对宁夏灵武试验区西大沟的2个监测断面水质进行了评价。结果表明,灌区退水中氮、磷质量分数超标严重,退水水质受养殖污染、灌水、农业上过量使用化肥等方面的综合影响。应从源头控制入手,通过降低化肥使用量、代替以有机肥和生物肥、调整和优化农村产业结构、发展绿色农业及生态农业等措施,改善农田退水水质,缓解灌区退水对黄河水体造成的污染。
Based on the pollution problems of the subsiding water from cropland in the irrigation area of the upper reaches Yellow River,the grey clustering method was used to evaluate the water quality of two monitoring sections in Lingwu experimental area of Ningxia province.The results indicated that： the concentration of nitrogen and phosphorus went beyond the standards seriously,meanwhile the subsiding water quality from cropland in the irrigation area were affected by the following factors,such as,breeding pollution,irrigation and overfertilization.So it is the very imperative for us to realize that we must control the pollution from the source,reducing the application of the fertilization,developing the organic fertilizer and bio-fertilizer,readjusting and optimizing the industrial structure,developing the green agriculture and the ecological agriculture etc,so as to alleviate the pollution of the subsiding water from cropland in the irrigation area of the Yellow River.
出处
《灌溉排水学报》
CSCD
北大核心
2011年第1期72-75,共4页
Journal of Irrigation and Drainage
基金
国家科技重大水专项(2009ZX07212-004-01-5)
国家科技重大专项(2008ZX07425-004)
国家人事部高层次留学人员科技活动资助项目(留学人才08-1)
关键词
引黄灌区
退水水质
灰色聚类法
评价
irrigation area of the Yellow River
subsiding water quality
grey clustering method
evaluation
