阅海湖水环境因子时空分布特征及水环境综合评价  

The Spatial and Temporal Character of Water Environment Factors and Assessment of Water Environmental Quality in Yuehai Lake

作　　者：李斌 白维东 杨永宇 伍冠星 祁萍 

机构地区：[1]宁夏水产技术推广站,宁夏银川750001 [2]宁夏大学土木与水利工程学院,宁夏银川750021

出　　处：《宁夏农林科技》2016年第8期40-42,F0003,共4页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏回族自治区科技攻关项目"宁夏沿黄湖泊湿地生态渔业关键技术研究"后续研究课题

摘　　要：为探明银川市阅海湖水质状况,分别于2013—2015年春(4月)、夏(7月)、秋(10月)、冬(1月)采集水样,在水环境因子时空分布特征调查分析的基础上,运用水质综合评分法、灰色关联法、综合营养状态指数法对阅海湖水环境质量进行综合评价。结果表明:阅海湖水环境因子受季节的影响大,水质主要以Ⅳ级为主,富营养化程度较高,阅海湖水体污染防治主要应以降低外源性氮磷营养盐的含量为主。Water sample were collected in April, July, October and January from 2013 to 2015 respectively to explore water quality condition of Yuehai Lake. Based on the investigation of water environment factors in temporal and spatial distribution characteristics in Yuehai Lake, water quality was evaluated by WPI and grey correlation, as well as eutrophication assessment by comprehensive trophic state index. The results showed that the water environment factors presented obviously seasonal change, the water quality was mainly Ⅳ grade, and the degree of eutrophication was higher in Yuehai Lake. The water pollution prevention and control should be mainly to reduce the content of exogenous nitrogen and phosphorus nutrient in Yuehai Lake.

关 键 词：时空分布 水质综合评分 灰色关联 综合营养状态指数 

分 类 号：X824[环境科学与工程—环境工程]