秋季艾比湖流域水质综合分析与评价

Analysis and assessment of water quality of Ebinur Lake basin in autumn

河流综合水质评价是水环境治理中的基础性工作。于2014年10月在艾比湖流域的55个采样点采集地表水样,将pH、COD、溶解氧(DO)作为评价因子,采用单因子污染指数法、内梅罗污染指数法和综合污染指数法进行了水质评价,并探讨了艾比湖流域的总体污染状况。结果表明:(1)艾比湖流域4种水体污染程度为河流>裸露湖床>水库>农田灌溉水;(2)艾比湖流域中部区域的水质污染最严重,西部和东部区域的水质仍处于清洁状态。本研究为干旱区流域地表水资源的治理与保护提供参考依据。

River water quality assessment is the basic work of water environment management. In this study, pH,COD and dissolved oxygen （DO） of water samples from 55 sampling sites were selected as the main factors in Ebinur Lake basin in October 2014 with single factor pollution index method, Nemerow pollution index method and comprehensive pollution index method to evaluate the pollution and discuss the whole situation of surface water. The results show that： （l）pollution level of 4 kinds of water body in Ebinur Lake basin order river〉bare lake bed〉reser-voirfarmland irrigation water. （2）The water body in the central of Ebinur Lake basin was most serious polluted, while that in western and eastern region was in clean state. This study could provide a scientific reference for the gov-ernance and protection of surface water resources in arid areas.