摘要
2007年8月—2008年7月对五里湖水体中的TN、TP、NO3--N、NO2--N、NH4+-N、PO43--P等氮磷营养盐和pH、透明度、温度、CODMn、Chl-a等理化指标进行了为期1年的监测,并将监测结果与2004—2005年的同期结果进行了比较。结果表明:五里湖自2003年实施生态恢复工程以来,水体水质得到了一定改善,TN和TP负荷分别下降47.25%和10.06%,水体营养状况由中度富营养化变为轻度富营养化,但仍还没有完全从根本上解决水体的富营养化问题。
The N and P nutrient salts such as total nitrogen （TN）,total phosphorus（TP）,nitrate-N（NO-3-N）,nitrite-N（NO2^--N）,ammonia-N（NH4^＋-N）, phosphate-P（PO4^3--P）,and other physic-chemic indexes such as pH value,secchi-depth（SD）,temperature（T）,chemical oxygen demand（CODMn）, and chlorophyll a concentration（Chla） of Wuli Lake were monitored from August 2007 to July 2008.The monitored data were compared with data taken in the same period from 2004 to 2005.The results showed that the water quality of Wuli Lake had improved to a certain degree since the ecological restoration project implemented in 2003,and TN and TP loading had decreased by 47.25% and 10.06% respectively.The eutrophic level in Wuli Lake had changed from mesotrophication to light eutrophication;however,the eutrophication problem had not been radically solved.
出处
《水资源保护》
CAS
2010年第5期6-10,共5页
Water Resources Protection
基金
江苏省社会发展项目(BE2008690
BS2007161)
关键词
五里湖
水质监测
水质评价
富营养化
Wuli Lake
water quality monitoring
water quality assessment
eutrophication
