摘要
为研究鄱阳湖入湖河流水质对鄱阳湖富营养化的影响,选取赣江、饶河、信江、修水、抚河五条主要入湖河流为研究对象,于2019年1月-12月对其入湖河流水质进行了细化研究,通过定期取样测试入湖河流水体中不同形态氮磷的质量浓度,以实测数据为参考对入湖河流氮磷质量浓度的污染特征进行分析,为鄱阳湖的富营养化防治提供支撑。结果表明:饶河TP浓度(变化范围为0.03~0.88mg/L,平均值0.31mg/L)高于其它河流主要是由于没有水库对于磷素的滞留作用;赣江的NO_(3)^(-)-N浓度(变化范围为0.70~2.43mg/L,平均值1.31mg/L)高于其它河流原因是农业污染和城市污染的共同作用。根据TN/TP比值,判定赣江(TN/TP比值为26.2)水体属于磷限制性状态,其它水体均属于正常状态。
In order to study the impact of the water quality of Poyang Lake’s inflowing rivers on Poyang Lake’s eutrophication,five major inflow rivers,Ganjiang,Raohe,Xinjiang,Xiushui,and Fuhe,were selected as the research objects.They were conducted from January to December 2019.The water quality of the rivers entering the lake has been studied in detail,and the concentrations of different forms of nitrogen and phosphorus in the water body of rivers entering the lake were measured by regular sampling.The pollution characteristics of the mass concentration of nitrogen and phosphorus in the rivers entering the lake are analyzed based on the measured data.Provide support for eutrophication prevention and control.The results show that the TP concentration of Raohe River(variation range of 0.03~0.88mg/L,average value 0.31mg/L)is higher than other rivers mainly because there is no reservoir for phosphorus retention;the-N concentration of Ganjiang River(variation range of 0.70~2.43mg/L,average value 1.31mg/L)is higher than other rivers because of the combined effect of agricultural pollution and urban pollution.According to the TN/TP ratio,it is determined that the Ganjiang River(TN/TP ratio is 26.2)is in a phosphorus-restricted state,and other water bodies are in a normal state.
作者
盛文涛
欧阳小军
Sheng Wentao;Ouyang Xiaojun(Jiangxi Xiaoyong Technology Co.,Ltd.,Jiangxi,330000;Jiangxi Bishuiyuan Technology Development Co.,Ltd.,Jiangxi,330038)
出处
《当代化工研究》
2021年第16期118-122,共5页
Modern Chemical Research
关键词
鄱阳湖
入湖河流
氮磷浓度
污染特征
Poyang Lake
rivers entering the lake
nitrogen and phosphorus concentration
pollution characteristics
