基于水基因图谱的毛河流域冬季污染源溯源分析

Traceability Analysis of Pollution Sources in Winter in Maohe River Basin Based on Water Gene Map

为进一步摸清冬季毛河流域污染源,本次研究利用水基因图谱方法,对冬季的毛河流域的5处重点污染区域进行了溯源调查分析,主要结论如下:溯源调查发现,龙安佛岩支流呈现水产养殖废水特征,金岗支渠、洪塔寺支渠、梁河、毛河干流呈现农田退水特征;超标排污口位置与超标断面在空间上高度重合,点源污染对河流水质影响较大。通过研究,基本摸清了冬季的毛河流域污染来源,为进一步对毛河流域实施精准治理提供相应的科学依据。

In order to further understand the pollution sources of the Maohe River Basin in winter,this study used the method of water gene map to trace and analyze the five key pollution areas in the Maohe River Basin in winter.The main conclusions are as follows:the tracing investigation found that the longan and foyan tributaries present the characteristics of aquaculture wastewater,and the Jingang branch canal,hongtasi branch canal,Lianghe River and Maohe main stream present the characteristics of farmland recession.The location of the excessive discharge outlet and the excessive section are highly overlappedin space,and the point source pollution has a great impact on the river water quality.Through the research,the pollution sources of the Maohe River Basin in winter are basically found out,which provides the corresponding scientific basis for the further implementation of precise governance of the Maohe River Basin.