流域生态环境状况评价指标体系构建与应用——以柳江流域为例  

Construction and Application of Watershed Ecological Environment Evaluation Index System:A Case Study of Liujiang River Basin

作　　者：周雪欣 赵晓晨 葛晓霞 ZHOU Xuexin;ZHAO Xiaochen;GE Xiaoxia(Scientific Institute of Pearl River Water Resources Protection,Guangzhou 510635,China)

机构地区：[1]珠江水资源保护科学研究所,广州510635

出　　处：《广东水利水电》2023年第2期51-56,共6页Guangdong Water Resources and Hydropower

摘　　要：为提高流域生态环境状况评价科学性、代表性和可操作性,通过选取11项陆生、水生生态评价指标,构建流域生态环境状况评价综合指标体系,并采用组合赋权法确定各项指标权重,利用综合指数法评价流域生态环境状况。以柳江流域为实例,结合实地调查数据及遥感、GIS技术,对各项评价指标进行计算赋值,并将评价指标分级结果和流域生态环境状况评价结果成图输出。结果表明,柳江流域生态环境状况空间差异较大,生态环境状况为一般及良的区域在全流域分布较为广泛,龙江下游、柳江干流中下游及洛清江中上游东部地区生态环境状况相对较差。全流域生态环境状况指数平均值为64.3,整体处于良水平。In order to improve the scientificity, representativeness and operability of the Eco-environmental assessment of river basins, 11 terrestrial and aquatic ecological evaluation indexes were selected to construct a comprehensive evaluation index system. The combination weighting method was used to determine the weight of each index, and the composite index method was used to evaluate the Eco-environmental assessment of river basins. Taking Liujiang River basin as an example, the evaluation indexes were calculated and assigned in combination with field survey data, remote sensing and GIS technology. The evaluation index classification map and the Eco-environmental assessment map were formed. The results show that the Eco-environmental status in Liujiang River basin existed spatial differences. Areas with general and good ecological environment were widely distributed in the whole basin. The lower reaches of the Longjiang River, the middle and lower reaches of the main Liujiang River, the middle and upper reaches(eastern region) of the Luoqingjiang River, the Eco-environmental status in these areas were worse. The average value of Eco-environmental status index is 64.3, which is at a good level as a whole.

关 键 词：生态环境状况评价 综合指数法 柳江流域 

分 类 号：X826[环境科学与工程—环境工程]