摘要
面源污染物越来越成为导致太湖地区富营养化的主要原因之一,利用SPSS进行基于因子分析的主成分分析法,研究了太湖地区旱季和雨季水质污染状况的差异及其主导影响因子。结果表明,研究区总磷、总氮、铵态氮超标最为严重,其中总氮含量雨季明显大于旱季;辛庄地区地下水中总磷平均含量明显高于宜兴和王庄的地下水。研究区域内太湖的磷污染比灌溉水和城市河水严重,且长期处于富营养化状态。地表水水质最大的影响因素是氮、磷营养盐以及CODMn,影响地表水质的主要氮盐为铵态氮。
Non-point source pollution is one of the main causes of eutrophication in Taihu Lake region. The goal of this study was to identify, analyze and compare different factors that impacted water pollution in the rainy and dry season of Taihu Lake .The results showed that concentration of total phosphorus, total nitrogen, ammonium was at serious level. Total nitrogen content in the rainy season was greater than that in dry season and average total phosphorus content in xinzhuang was significantly higher than in Wangzhuang and Yixing. The phosphorus pollution in Taihu Lake region was at serious level than irrigation water and urban water. The significant factors of surface water were nitrogen, phosphorus and CODMn while most influential factor of ground water was ammonium nitrogen.
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2008年第6期2396-2400,共5页
Journal of Agro-Environment Science
基金
国家自然科学基金项目“硝态氮在含有大孔隙的农田土壤中运移机理及数学模拟”(40371055)
关键词
太湖地区
旱季
雨季
水体污染状况
Taihu Lake region
dry season
rain season
water pollution
