Analysis on composition and pattern of agricultural non-point source pollution in Liaohe River Basin, China

被引：0
|
作者：
Wen, Qingchun [1 ]
Chen, Xin [1 ]
Shi, Yi [1 ]
Ma, Jian [1 ]
Wen Qingchun [2 ]
Zhao, Qian [3 ]
机构：
[1] Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang, Peoples R China
[2] Liaoning Environm Monitoring Ctr, Shenyang, Peoples R China
[3] Liaoning Prov Shiyan High Sch, Shenyang, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND TECHNOLOGY, PT 1 | 2011年 / 6卷
关键词：
agricultural non-point source pollution; loading; composition; pattern; LAND-USE CHANGE; WATER-QUALITY; EXPORT COEFFICIENT; SURFACE WATERS; IMPACT;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The composition and spatial pattern of agricultural non-point source (NPS) pollution was studied in Liaohe River basin which is representative of areas of intensive NPS pollution in Northeast China. Selecting COD and ammonia nitrogen as the major pollutants, the export coefficient method and GIS spatial analysis methods were utilized to analyze the component composition and spatial distribution characteristics of NPS pollution in Liao River basin. The results showed that farmland runoff was the most significant source for the agricultural NPS pollution in the study area. Over 60 percents of the pollution loading was distributed in the Liaohe River mainstream area, and the pollution intensities were stronger in Hunhe River downstream and Liaohe River stem downstream plain sub-basins in Central-Western Liaoning province than in Hunhe River upstream and Taizihe hilly sub-basins in eastern Liaoning province.
引用
收藏
页码：VI180 / VI183
页数：4
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