扬州市不同功能区径流污染负荷空间分布差异

Spatial Distribution Differences of Storm Runoff Pollution Loads in Different Functional Areas of Yangzhou

随着点源污染受到明显控制,非点源污染问题带来的危害逐渐显现,已然成为国内外城市水体污染的最主要原因之一。针对扬州市5个代表性功能区,根据河道、管网走向等将其划分为67个汇水单元。通过比对各个功能区各汇水单元污染物负荷强度空间差异并分析原因,为各个功能区面源污染治理提供方案,对城市面源污染防控及水环境提升具有重要意义。

With the obvious control of point source pollution, the harm caused by non-point source pollution has gradually emerged,and it has become one of the most important causes of water pollution in cities at home and abroad. According to the five representative functional areas of Yangzhou City, it is divided into 67 catchment units according to the river course and pipe network trend. By comparing the spatial differences of pollutant load intensity of each catchment unit in each functional area and analyzing the reasons, it provides a plan for non-point source pollution control in each functional area, which is of great significance for urban non-point source pollution prevention and control and water environment improvement.