摘要
对桂林城区湖泊凹岸地带,按丰水期、枯水期分别进行了采样调查,并分析其总氮(TN)、总磷(TP)浓度含量。测试结果表明四湖的凹岸水域70%的采样点TP和TN都超过了GB3838-2002《地表水环境质量标准》中的IV类标准,可以初步判定四湖的凹岸水域水质已接近了富营养化条件,部分凹岸带已存在了富营养化的现象。
Taking samples from the concave belt of water system in the city zone of Guilin, during its wet season and dry season, we carry out an investigation to analyze its TN and TP concentration. The testing results show that almost 70% of the samples＇ TN and TP concentration overrun the standard of IV level in GB3838--2002 Environmental Quality Standards for Surface Water. From this investigation, we can preliminary come to a verdict that there exist an eutrophication tendency in the concave belts and parts of this areas are suffering eutrophications.
出处
《三峡环境与生态》
2009年第2期1-4,共4页
Environment and Ecology in the Three Gorges
基金
广西科学基金项目(桂科青0542004)
广西高校人才小高地建设"环境工程"创新团队资助计划项目(桂教人[2007]71号)
研究生创新基金项目(编号2008105960814M07)
关键词
城区湖泊
富营养化
总氮
总磷
lakes of the city zone
eutrophication
TN
TP
