摘要
根据2018年的水质监测数据,利用主成分分析法对榕江干流及其主要支流的水质状况进行评价,同时将其评价结果与单因子指数法的评价结果进行比较分析。结果表明,榕江干流中上游及其以上河段的水质较好;干流中下游及其以下河段、主要一级支流北河和二级支流枫江受沿线生活污水和工业废水排放的影响,水质较差,其中以枫江的污染状况最为严重。相比单因子指数法,主成分分析法更适用于评价受多种污染物质影响水体的水质状况,其评价结果更加客观全面。
The water quality of the Rongjiang River and its mian tributaries in 2018 was analyzed based on principal component analysis.At the same time,the evaluation results were compared with that based on single-factor method.The results showed that the water quality of the upper and middle reaches of Rongjiang River was better than that of the middle and lower reaches,also the primary tributary,Beihe River and the secondary tributary,Fengjiang River.Among them,the pollution of Fengjiang River was the most serious.Compared with single-factor method,principal component analysis is more suitable for evaluating water quality affected by various pollutants and the evaluation results are more objective and comprehensive.
作者
黄丰明
HUANG Fengming(Shantou Substation of Guangdong Provincial Hydrographic Bureau,Shantou 515041,China)
出处
《广东水利水电》
2019年第10期52-56,共5页
Guangdong Water Resources and Hydropower
关键词
主成分分析法
榕江
水质评价
principal component analysis
Rongjiang River
water quality assessment
