洞庭湖水生态风险评价模型构建及应用  

Construction and application of aquatic ecological risk assessment model for Dongting Lake

作　　者：殷雪妍 宋思敏 严广寒 汪星[1,2,3] 李利强 王丽婧[3,7] 李莹杰[3,7] YIN Xueyan;SONG Simin;YAN Guanghan;WANG Xing;LI Liqiang;WANG Lijing;LI Yingjie(National Engineering Laboratory for Lake Pollution Control and Ecological Restoration,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;State Environmental Protection Key Laboratory of Drinking Water Source Protection,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;State Environmental Protection Scientific Observation and Research Station for Lake Dongting,Chinese Research Academy of Environmental Sciences,Yueyang 414000,Hunan,China;ChangJiang Water Resources and Hydropower Development Group Co.,Ltd.,Yangtze River Engineering Consulting Company,Wuhan 430014,Hubei,China;School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200241,China;Dongting Lake Eco-environment Monitoring Centre,Yueyang 414000,Hunan,China;Research Center of Ecological Environment for Yangtze River Economic Belt,Chinese Research Academy of Environmental Sciences,Beijing 100012,China)

机构地区：[1]中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室,北京100012 [2]中国环境科学研究院国家环境保护饮用水水源地保护重点实验室,北京100012 [3]中国环境科学研究院国家环境保护洞庭湖科学观测研究站,湖南岳阳414000 [4]长江水利水电开发集团(湖北)有限公司扬子江工程咨询公司,湖北武汉430014 [5]华东师范大学生态与环境科学学院,上海200241 [6]洞庭湖生态环境监测中心,湖南岳阳414000 [7]中国环境科学研究院长江经济带生态环境研究中心,北京100012

出　　处：《水利水电技术（中英文）》2022年第S01期45-53,共9页Water Resources and Hydropower Engineering

基　　金：社会公益类科研机构改革专项项目(2020-JY-009);洞庭湖江湖生态监测重点站(JJ2017-028);三峡工程运行安全综合监测系统:库区维护和管理(2136703)

摘　　要：水生态风险评价作为实施水生态保护决策的关键因素,对湖泊水生态风险防控具有深远影响。以洞庭湖为研究对象,基于1999—2017年历史数据,筛选DO、COD_(Mn)、NH_(3)-N、TP、Chl.a、水华影响指数、脆弱性指数、物种重要性指数及贝克-津田生物指数等9项指标,构建洞庭湖水生态风险评价指标体系。运用层次分析法和模糊综合评价法,构建水生态风险评价模型,对不同时期洞庭湖水生态风险状况进行分级评价。结果表明,2000年、2009年洞庭湖水生态环境处于中风险,2004年、2013年及2016年洞庭湖水生态环境处于低风险。整体来看,该评价模型基本能够反映洞庭湖在不同时期的水生态风险状况。As a key factor in implementing aquatic ecological protection decision-making,aquatic ecological risk assessment has a profound impact on the prevention and control of lake aquatic ecological risk.Based on historical data from 1999 to 2017,the index system for Dongting Lake water ecological risk assessment is screened and constructed,including 9 indicators such as DO,COD_(Mn),NH_(3)-N,TP,Chl.a,water bloom impact index,vulnerability index,species importance index,Baker-Tsuda biological index,and so on.Using analytic hierarchy process and fuzzy comprehensive evaluation method,construct aquatic ecological risk assessment model to evaluate the ecological risk status of Dongting Lake in different periods.The results show that the ecological environment of Dongting Lake was at medium risk in year 2000 and 2009,and the ecological environment of Dongting Lake was at low risk in year 2004,2013 and 2016.After verification,the evaluation results could basically reflect the aquatic ecological risk status of Dongting Lake in different periods.

关 键 词：水生态风险 评价模型 风险评估 洞庭湖 

分 类 号：X826[环境科学与工程—环境工程]