基于主成分分析法的梅梁湖水质分析与评价  

Comprehensive Evaluation of Meiliang Lake Water Environment Treatment Technology by PCA

作　　者：徐玲 Xu Ling(Shanghai Environmental Protection Co.LTD,Shanghai 200233,China)

机构地区：[1]上海环境保护有限公司,上海200233

出　　处：《绿色科技》2024年第8期193-198,共6页Journal of Green Science and Technology

摘　　要：选取2010-2015年7-9月梅梁湖区域6站点的悬浮物、溶解氧、pH值、硝酸盐氮、氨态氮、高锰酸盐指数、总磷和总氮等8个监测指标数据,采取主成分分析法分析了该区域的水质,明确影响该水域主要污染因子。结果表明:8项指标提取为3个主成分,解释了84.14%的水质信息。从空间分布上来看,靠近湖岸的湖区水质较差,在远离入湖河口,水域开阔处,水质较好。在时间上,梅梁湖区域水质状况不断得到改善,水质状况主要受入湖污染负荷和入湖水量的影响。梅梁湖区域富营养化污染严重,有机污染程度得到了一定的改善。研究结果对进一步了解梅梁湖区域水质情况具有重要意义,同时也为江苏省梅梁湖水质管理的科学决策提供支持。Based on the data of suspended solids,dissolved oxygen,pH,nitrate nitrogen,ammonia nitrogen,permanganate index,total phosphorus and total nitrogen of 6 stations in Meiliang Lake area from July to September in 2010 to 2015,the water quality of the area was analyzed by PCA,and the main pollution factors affecting the water area were identified.The results showed that 8 indexes were extracted as 3 principal components,which explained 84.14%of water quality information.From the perspective of spatial distribution,the water quality of the lake area near the lake bank is poor,and the water quality is better in the open area far from the estuary.In terms of time,the water quality of Meiliang Lake area has been improved continuously,and the water quality is mainly affected by the pollution load and water quantity into the lake.The eutrophication pollution in Meiliang Lake area is serious,and the degree of organic pollution has been improved to a certain extent.The results are of great significance to further understand the regional water quality of Meiliang lake,and also provide support for scientific decision-making of water quality management of Meiliang Lake in Jiangsu Province.

关 键 词：太湖 梅梁湖 水质 主成分分析 

分 类 号：X703[环境科学与工程—环境工程]