摘要
针对甘肃景电灌区退水水质问题,运用灰色聚类法对一期灌区4个监测断面水质进行了评价。结果表明,4个监测断面的水质等级均属于于Ⅴ类水,污染较为严重,必须引起高度重视。黄河作为灌区农田退水的接纳水体,其水体安全势必会受到影响,农田过量施肥是影响农田退水水质的主要因素,可以通过加强灌区综合管理,大力推广农田节水灌溉技术,降低化肥的使用量,最终达到改善灌区农田退水水质的目的,减轻灌区退水对黄河水质安全的影响。
Aiming at the water quality problems of return water in Jingdian Irrigation District of Gansu Province,the water quality of four monitoring sections in the first stage irrigation district was evaluated by grey clustering method. The results show that the water quality of the four monitoring sections belongs to V grades,and the pollution is serious,which must be paid more attention. The Yellow River,as the receiving water body of return water from farmland in irrigation area,its water safety is bound to be affected. Farmland excess fertilization is the main factor that affect the water quality of the return water from farmland. Through strengthening the comprehensive management of irrigation areas and strongly promoting water-saving irrigation technology for farmland,reduce the use of chemical fertilizers,eventually to improve irrigation farmland water quality pollution and reduce the Impact of water quality on the safety of the Yellow River.
作者
陈南束
费良军
李山
李静思
张景辉
高秋燕
CHE Nan-shu;FEI Liang-jun;LI Shan;LI Jing-si;ZHANG Jing-hui;GAO Qiu-yan(School of Water Resources and Hydropower,Xi’an University of Technology,Xi’an 710048,Shaanxi;Jingtai-chuan Electric Power Purification Administration of Gansu Province,Jingtai 730400,Gansu)
出处
《地下水》
2020年第4期76-78,共3页
Ground water
基金
国家自然科学基金资助项目(51779205)
甘肃省科技计划项目(144NKCD238)。
关键词
甘肃景电灌区
退水水质
灰色聚类法
综合评价
Gansu Jingdian irrigation District
return water quality
grey clustering method
comprehensive evaluation
