摘要
磷是导致河流富营养化的重要元素,沉积物是河流富营养化的重要内源。目前小城镇的发展与环境监测不相适应。对上海市小城镇河流沉积物磷污染调查分析表明:镇级河流磷污染相对突出,朱家角镇镇级河流污染最为突出,枫泾区级河流磷污染相对突出,松江相对磷污染风险较小,但区域内差异较大,夏季是河流沉积物磷含量最高的季节,高温度和沉积物磷的高含量使得沉积物成为夏季上海市小城镇河流富营养化污染的重要内源。
It is a reason which causes eutrophication pollution of rivers that the excessive phosphorus is imported. The river sediment is an important material storehouse of the phosphorus. The surveys of phosphorus pollution in river sediment is essential to water eutropication pollution. The results of the survey show that the pollution degree of town river is greater than which of the district river and village river. In Zhujiajiao town, town river is much serious about the phosphorus pollution,but in Fengjing town,district river is much serious, in summer the eutropication pollution of water breaks out,the survey also show that the sum phosphorus in sediment is highest in summer,the content of phosphorus in sediment is an important factor to cause water eutrophication pollution. The survey results provide us some theory base on fathering the pollution of eutrophication.
出处
《水土保持学报》
CSCD
北大核心
2004年第6期100-102,135,共4页
Journal of Soil and Water Conservation
基金
国家自然科学基金(40131020)
国家自然科学基金(40173030)
上海青年科技启明星跟踪计划(01QMH1406)
上海市科委基础研究重点项目(02QJ14029)
