第二松花江面源污染时空分布规律的研究

摘要

第二松花江流域作为松花江干流的主要产水区,其污染年负荷关乎下游水质的安全.面源污染是第二松花江的重要污染来源,采用输出系数法估算面源污染年负荷量,通过流域土地利用类型、社会经济信息等因素,利用有资料年的统计数据,进行面源污染年负荷量在时间、空间上的展布,探寻第二松花江流域面源污染年负荷量的空间分布规律,为水环境管理部门提供理论依据.%The water quality in connection with annual pollution load of the second Songhua River basin concerns the downstreamrnwater quality security as the source stream of the Songhua River. Non-point source pollution brings most pollutant for the secondrnSonghua River. Through export coefficient model to estimate non-point annual pollutant load, collecting land utilization, socialrneconomy information and readymade year statistical data, this paper carries on non-point source pollution temporal and spatialrndistribution law in order to provide theoretical support for water environmental management department.