蒋家寨水库富营养化状况评价

Evaluation of Eutrophication of Jiangjiazhai Reservoir

基于2014—2018年每年四个季度的水质监测数据,采用综合营养状态指数(TLI(∑))和营养状态指数TLI对保山市施甸县蒋家寨饮用水水源地富营养状态进行评价,结果表明,施甸县蒋家寨水库2014—2017年处于贫营养状态,2018年呈现中营养状态。水质类别和营养状态主要影响因子为TN。分析其变化趋势,5a内营养状态呈上升趋势但没有显著变化趋势,水质状况比较稳定。

Based on the water quality monitoring data in four quarters of each year in 2014-2018,comprehensive eutrophication level index TLI(∑)and eutrophication level index TLI were used to evaluate the eutrophication of Jiangjiazhai Reservoir in Shidian County,Baoshan.The results showed that Jiangjiazhai Reservoir was at poor nutrition state in 2014-2017.The state of medium nutrition was emerged in 2018.The main pollution index was TN.Its change trend was examined.The eutrophication status showed an upward trend but no significant change in recent 5 years.The water quality was stable.