基于输出系数法的苕溪流域面源污染负荷估算  

Estimation of Non-point Source Pollution Load in Tiaoxi River Basin Based on Output Coefficient Methods

作　　者：罗娜 樊霆[1] 郭彬[2] 李凝玉[2] 傅庆林[2] 李华[2] LUO Na;FAN Ting;GUO Bin;LI Ning-yu;FU Qing-lin;LI Hua(School of Resource and Environment,Anhui Agricultural University,Hefei 230036;Institute ofEnvironment,Resources,Soil and Fertilizer,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China)

机构地区：[1]安徽农业大学资源与环境学院,合肥230036 [2]浙江省农业科学院环境资源与土壤肥料研究所,杭州310021

出　　处：《合肥学院学报（综合版）》2021年第2期78-84,共7页Journal of Hefei University：Comprehensive ED

基　　金：国家重点研发计划(2016YFD00200804);国家自然科学基金(41671300);平湖市院地合作项目(PH20190001)资助。

摘　　要：位于浙江北部的苕溪流域是浙江八大水系之一,具有典型的平原水网特征,地势平坦,水系复杂,河网密布。由于人口密集,工农业生产强度大,导致经济环境之间的矛盾日益严重,为探究苕溪流域主要污染源总氮总磷污染负荷现状,采用输出系数法对苕溪流域氮磷污染负荷进行核算,从农村生活、畜禽养殖、农业种植、水产养殖四大来源进行了统计。结果表明:在总氮污染来源中,畜禽养殖是最大的污染来源,占总贡献量的27%,其次是种植业,占比达25%,在总磷的污染负荷来源中,畜禽养殖是最主要污染来源,比例达49%。总体来看,苕溪流域面源污染氮磷来源主要为:畜禽养殖>农村生活污水>种植业>水产养殖,流域内水环境生态安全与人为因素相关。The Tiaoxi River Basin,located in northern Zhejiang,is one of the eight major river systems in Zhejiang.It has the characteristics of a typical plain water network,flat terrain,complex water systems,and dense river networks.The Taihu Lake Basin is a relatively developed area in China.Due to the dense population and the high intensity of industrial and agricultural production,the contradiction between the economic environment has become increasingly serious.The nitrogen and phosphorus pollution load in the Tiaoxi River Basin was calculated,and statistics were collected from four major sources:rural life,livestock and poultry farming,agricultural planting,and aquaculture.The results show that among the sources of total nitrogen pollution,livestock and poultry farming was the largest source of pollution,accounting for 27%of the total contribution,followed by plantation,accounting for 25%.Among the sources of total phosphorus pollution load,livestock and poultry farming it was the main source of pollution,accounting for 49%.In summary,the main sources of non-point pollution nitrogen and phosphorus in Tiaoxi River Basin were livestock and poultry farming>rural domestic sewage>planting industry>aquaculture.The ecological security of the water environment in the river basin was related to human factors.

关 键 词：苕溪流域 氮磷 面源污染 输出系数法 

分 类 号：X522[环境科学与工程—环境工程]