Comprehensive Evaluation of Meiliang Lake Water Environment Treatment Technology by PCA
Based on the data of suspended solids,dissolved oxygen,pH,nitrate nitrogen,ammonia nitrogen,per-manganate 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 ex-plained 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 sig-nificance 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.
NETL
NSTL
万方数据
