乡镇面源污染对古泊善后河水质影响及防治措施研究

Impact of Township Non-point Source Pollution on Water Quality of GuBo Shanhou River and its Control Measures

古泊善后河是泄洪、排涝、送水灌溉的主要河流渠道,是沂北地区流域面积最大的排涝、灌溉河道。本文以2021年古泊善后河李套渡口断面例行及专项监测结果为依据,研究古泊善后河水质状况及变化趋势,分析污染原因,研究防治措施。结果表明,古泊善后河污染主要来自支流汇入,支流沿线的农业面源污染和乡镇生活污染等是影响古泊善后河水质的重要原因。建议相关部门建立详细问题清单并制定销号制度,全面管控农业面源污染,加强污水收集处理,强化区域生态修复和水系沟通。

GuBo Shanhou river is the main channel for flood discharge,drainage and irrigation.It is the largest drainage and irrigation channel in Yibei region.Based on the routine and special monitoring results of LiTaO ferry section of GuBo Shanhou River in 2021,the water quality status and change trend of GuBo Shanhou River are studied,the pollution causes are analyzed,and the prevention and control measures are studied.The results show that the pollution of GuBo Shanhou River mainly comes from the confluence of tributaries,and the agricultural non-point source pollution and township domestic pollution along the tributaries are the important reasons affecting the water quality of GuBo Shanhou river.It is suggested to establish a detailed list of issues and a cancellation system,comprehensively control agricultural non-point source pollution,strengthen sewage collection and treatment,and strengthen regional ecological restoration and water system communication.