基于主成分分析的洞庭湖水质空间分布特征分析
nalysis on spatial distribution characteristics of water quality in Dongting Lake based on principal component analysis
本文以2011年洞庭湖14个监测断面的水质数据为研究数据,以主成分分析法为研究手段,选取了高锰酸盐指数、五日生化需氧量、氨氮、化学需氧量、总磷这5项水质指标，对2011年洞庭湖水质的空间分布特征进行分析，并找出水质的主要污染因素。结果表明：2011年洞庭湖的湖体水质劣于入湖口水质，入湖口水质劣于出湖口水质。在三个湖体中，东洞庭湖水质最差，西洞庭湖水质最好。在入湖四水中，湘江水质最差，澧水水质最好。根据本文的评价结果，可以把污染洞庭湖水质的因素归为两类，一类是有机物污染，另一类是营养类物质的污染。
Based on the water quality data of 14 monitoring sections of Dongting Lake in 2011 and the principal component analysis, the 5 water quality indicators, such as CODmn、BOD5、NH3-N、CODcr、TP，were selected to analysis the spatial distribution characteristics of the water quality in Dongting Lake in 2011 and find out the main pollution factors of water quality. The results showed that: in 2011 the water quality of the lake center is worse than the water quality of the lake entrance, the water quality of the lake entrance is worse than the water quality of the lake outlet. In the three lakes, the water quality of east Dongting Lake is the worst, the water quality of west Dongting Lake is the best. In four waters into the lake, the water quality of Xiangjiang is the worst, the water quality of Lishui is the best. According to the evaluation results, the water pollution factors of Dongting Lake can be classified into two categories, one is the organic pollution, the other is nutrient substance pollution
彭莹莹、毛德华
环境污染、环境污染防治
水文学洞庭湖水质评价主成分分析法空间分布特征
hydrologyDongting LakeWater Quality EvalutionPrincipal Component Analysisspatial distribution characteristics
彭莹莹,毛德华.基于主成分分析的洞庭湖水质空间分布特征分析[EB/OL].(2016-05-17)[2025-08-06].http://www.paper.edu.cn/releasepaper/content/201605-498.点此复制
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