农业资源与环境学报2024，Vol.41Issue(5)：1182-1191,10.DOI:10.13254/j.jare.2023.0584
湖南省农业面源污染风险等级区划及防治对策
Risk level zoning and countermeasures for agricultural non-point source pollution in Hunan Province
摘要
Abstract
We explored the risk level zoning and control measures for agricultural non-point source pollution,which used the equivalent standard pollution load method and GIS spatial analysis method to fully grasp the pollution situation in Hunan Province.Based on the equivalent pollution load of land area and the pollution load per unit of surface runoff,this paper analyzed the data of the sources,types,and spatial distribution of agricultural non-point pollution sources in Hunan Province from 2018 to 2021.The results showed that the TN pollution load of agricultural non-point sources was the highest,with the contribution rate more than 40%from 2018 to 2020.The value was generally higher at the center of the province and gradually decreased in the surrounding area.The risk level of Hunan Province can be zoned into three levels,i.e.,high-risk areas,medium-risk areas,and low-risk areas,via natural discontinuity grading method.The pollution sources can be divided into six types,i.e.,livestock and poultry farming pollution type,rural domestic sewage pollution type,rural domestic sewage livestock and poultry breeding pollution type,rural domestic sewage planting pollution type,planting livestock and poultry breeding pollution type,and combined pollution type.The control measures of agricultural non-point source pollution in Hunan Province were put forward according to 14 sub-regions based on the above six source types.关键词
湖南省/农业面源污染/等标污染负荷/污染风险区划/防治对策Key words
Hunan Province/agricultural non-point source pollution/equivalent pollution load/pollution risk level zoning/control measures分类
资源环境引用本文复制引用
戴诗琴,宋晓明,彭紫微,吕鹏飞,刘民,林毅青,吴根义..湖南省农业面源污染风险等级区划及防治对策[J].农业资源与环境学报,2024,41(5):1182-1191,10.基金项目
国家自然科学基金联合基金项目(U20A2086)Joint Funds of the National Natural Science Foundation of China(U20A2086) （U20A2086）
