摘要
运用清单法和等标污染负荷法,借助GIS技术对松花江一级支流阿什河流域农业非点源污染负荷、来源解析及其敏感性进行深入分析,找出污染优先控制区域。结果表明:在总量上各污染源对阿什河水质污染贡献大小顺序为化:肥施用>畜禽养殖>农村生活污染>土壤侵蚀>秸秆污染,其等标污染负荷比分别为67.46%>16.24%>12.21%>2.69%>1.40%;除城郊幸福乡生活污染贡献率最高外,其他各乡镇均为化肥污染贡献率最高;地处阿什河中游平原的向阳、料甸、舍利、杨树和双丰5乡镇为污染高度敏感区,也即阿什河流域农业非点源污染优先控制区,其原因是高化肥施用量导致TN、TP浓度过高。
The agricultural non-point source pollution load,source apportionment and pollution sensitivity were deeply analyzed and the pollution control priority area was identified by the inventory analysis method and equivalent standard pollution method with the help of GIS in Ash River Basin.The results showed that the order of the contribution of each pollution source was fertilizerlivestocklivingsoil erosionstraw,and the equivalent standard pollution load ratio was in the order of 67.46%16.24%12.21%2.69%1.40%.The fertilizer pollution contribution was the highest in the study area except Xing-Fu town with highest living pollution.The Xiangyang,Liaodian,Sheli,Yangshu and Shuangfeng towns,which were located in the middle reaches of the Ash River Plain,were indentified the prior regions for agricultural and rural pollution control area because the TN and TP concentrations were excessively high due to using a large number of chemical fertilizers.
出处
《水土保持研究》
CSCD
北大核心
2013年第3期180-184,共5页
Research of Soil and Water Conservation
基金
水资源费公益性行业科研专项经费专题"松辽流域农村水资源保护全程控制技术研究"(1261230111072)
关键词
农业非点源污染
源解析
污染敏感级别
优先控制区域
阿什河流域
agricultural non-point source pollution
source apportionment
pollution sensitive class
prior control region
Ash River Basin
