生态与农村环境学报2026，Vol.42Issue(8)：1059-1070,12.DOI:10.19741/j.issn.1673-4831.2025.0471
浙江农田氮磷生态拦截沟渠建设对农业面源污染防治的启示
Construction of Ecological Ditches for Agricultural Nitrogen and Phosphorus Interception in Zhejiang:Implica-tions for Controlling Agricultural Non-point Source Pollution in China
摘要
Abstract
The effective governance of agricultural non-point source pollution is essential for enhancing the agricultural ec-ological environment.It also promotes green sustainable agricultural development,and constructing rural ecological civili-zation in China.Recently,ecological ditches have been widely implemented to reduce nitrogen and phosphorus levels in agricultural runoff.This article systematically discusses the demand for controlling agricultural non-point source pollution in Zhejiang Province,the technical models and operational mechanisms of ecological interception ditches.In addition,it evaluates the effectiveness of these ditches in reducing nitrogen and phosphorus,and identifies the challenges encountered during their implementation.The results indicate that the ecological ditch system in Zhejiang Province achieves average in-terception rates for NH4+-N,TN,TP,and COD in agricultural drainage water,ranging from 31.1%-85.1%,16.6%-55.9%,27.7%-66.9%,and 16.6%-57.3%,respectively.After purification,the water quality at the outlet of the dit-ches can be improved by 1.0-1.5 standard grades compared to that at the fields drainage outlets.Additionally,the instal-lation of nitrogen and phosphorus interception facilities within the ditches can enhance the interception rate of pollutants in agricultural drainage by approximately 20%.Despite the significant role of interception in pollutant reduction,the con-struction and maintenance of ditches in Zhejiang Province still face challenges due to variations in pollution characteristics arising from different regional agricultural management practices and limited funding sources.In summary,this systematic overview of the construction and operation of ecological ditch systems in Zhejiang Province aims to provide technical refer-ences and model insights for the prevention and control of non-point source pollution in China.关键词
农业面源污染/农田退水/生态沟渠/氮磷拦截/化肥减量Key words
agricultural non-point source pollution/agricultural water drainage/ecological ditch/nitrogen and phosphor-us interception/reduction of chemical fertilizer application分类
资源环境引用本文复制引用
施秀姣,徐琳玲,葛佳颖,聶新军,周小军,高红贝..浙江农田氮磷生态拦截沟渠建设对农业面源污染防治的启示[J].生态与农村环境学报,2026,42(8):1059-1070,12.基金项目
浙江省粮油产业技术项目(2023-83) （2023-83）
浙江省"三农九方"科技协作计划(2024SNJF066) （2024SNJF066）
