2013—2018年武进港氨氮污染时空特征研究

Research on Spatial and Temporal Characteristic of Ammonia Nitrogen Pollution in Wujingang River during 2013-2018

武进港位于常州市东南部,是进入太湖北部竺山湾的主要骨干河道,对竺山湾的水环境有重要影响。对2013—2018年武进港水质监测数据进行详细的时空特征研究。结果表明,武进港氨氮浓度在时间上表现为逐年递减,其中丰水期的氨氮浓度明显低于平、枯水期;在空间上表现为沿程递减,其中氨氮重污染区域主要集中在上游河段。

Wujingang River is located in the southeastern area of Changzhou City,it is one of the main rivers of Zhushan Bay located in the northern part of Taihu Lake,which has significant influences on water environment of Zhushan Bay.Detailed research on spatial and temporal characteristic based on water quality monitoring data during 2013-2018 revealed that in temporal the ammonia nitrogen pollution in Wujingang River reduced year by year and the ammonia nitrogen concentration in the abundance season was significantly lower than that in the flat and dry seasons,regularly.In spatial the ammonia nitrogen pollution in Wujingang River decreased along the flow,the heavily polluted areas are mainly concentrated in the upper reaches.