SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

WANG Ning; ZHANG Hong-yan; WANG Hui-lian; ZHANG Zheng-xiang

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SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

WANG Ning, ZHANG Hong-yan, WANG Hui-lian, ZHANG Zheng-xiang

文章导航 > Chinese Geographical Science > 2004 > 14(4): 355-360

WANG Ning, ZHANG Hong-yan, WANG Hui-lian, ZHANG Zheng-xiang. SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE[J]. 中国地理科学, 2004, 14(4): 355-360.

引用本文:

Citation:

SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

1.
Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China;
2.
Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

基金项目: Under the auspices of the National Natural Science Foundation of China (No.50139020-5-2) and Science & Technology Committee of Jilin Province (No.20010602)

详细信息

作者简介:
WANG Ning(1952- ),female, a native of Beijing, associate professor, Ph.D., specialized in water and soil conservation and pollution control. E-mail: nwang@nenu.edu.cn

中图分类号: X522

SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

1.
Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China;
2.
Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

摘要: Data collection, factor composition, nappe analysis and integrative simulation of natural geographical factors in Erlong Lake watershed have been carried out based on GIS. The risk areas where non-point source pollution may occur were compartmentalized and assessed, and the total soil erosion and the runoffs of N and P with rainfall in this valley were worked out by experiment and GIS mapping. The study indicated that the main type of soil erosion was moderate (erosion modulus is 1000-2500t/(km²·a)) at present, and the intense erosion areas are located in dry land with variable slope east of the lake and the midded ied ied ied ied ied ied ied iuntainous region (erosion modulus is more than 5000t/(km²·a)). Though the area is small, it should be paid attention to. The trend of non-point source pollution (NSP) of nitrogen and phosphorus loss was corresponded with the soil erosion. Spatial distribution and the reasons of the distribution difference have been presented and it was emphasized that the human activities among the influence factors was the most important. It surely offers a scientific basis to control and prevent non-point source pollution in the watershed.
- soil erosion /
- non-point source pollution /
- Erlong Lake /
- Geographic Information System (GIS)
Abstract: Data collection, factor composition, nappe analysis and integrative simulation of natural geographical factors in Erlong Lake watershed have been carried out based on GIS. The risk areas where non-point source pollution may occur were compartmentalized and assessed, and the total soil erosion and the runoffs of N and P with rainfall in this valley were worked out by experiment and GIS mapping. The study indicated that the main type of soil erosion was moderate (erosion modulus is 1000-2500t/(km²·a)) at present, and the intense erosion areas are located in dry land with variable slope east of the lake and the midded ied ied ied ied ied ied ied iuntainous region (erosion modulus is more than 5000t/(km²·a)). Though the area is small, it should be paid attention to. The trend of non-point source pollution (NSP) of nitrogen and phosphorus loss was corresponded with the soil erosion. Spatial distribution and the reasons of the distribution difference have been presented and it was emphasized that the human activities among the influence factors was the most important. It surely offers a scientific basis to control and prevent non-point source pollution in the watershed.
- soil erosion /
- non-point source pollution /
- Erlong Lake /
- Geographic Information System (GIS)

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SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

1. Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China;

2. Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

基金项目: Under the auspices of the National Natural Science Foundation of China (No.50139020-5-2) and Science & Technology Committee of Jilin Province (No.20010602)

作者简介:
WANG Ning(1952- ),female, a native of Beijing, associate professor, Ph.D., specialized in water and soil conservation and pollution control. E-mail: nwang@nenu.edu.cn

收稿日期: 2004-06-30
刊出日期: 2004-12-20

中图分类号: X522

关键词:

soil erosion /

non-point source pollution /

Erlong Lake /

Geographic Information System (GIS)

摘要: Data collection, factor composition, nappe analysis and integrative simulation of natural geographical factors in Erlong Lake watershed have been carried out based on GIS. The risk areas where non-point source pollution may occur were compartmentalized and assessed, and the total soil erosion and the runoffs of N and P with rainfall in this valley were worked out by experiment and GIS mapping. The study indicated that the main type of soil erosion was moderate (erosion modulus is 1000-2500t/(km²·a)) at present, and the intense erosion areas are located in dry land with variable slope east of the lake and the midded ied ied ied ied ied ied ied iuntainous region (erosion modulus is more than 5000t/(km²·a)). Though the area is small, it should be paid attention to. The trend of non-point source pollution (NSP) of nitrogen and phosphorus loss was corresponded with the soil erosion. Spatial distribution and the reasons of the distribution difference have been presented and it was emphasized that the human activities among the influence factors was the most important. It surely offers a scientific basis to control and prevent non-point source pollution in the watershed.

English Abstract

SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

1. Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China;

2. Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

Received Date: 2004-06-30
Publish Date: 2004-12-20

Keywords:

Abstract: Data collection, factor composition, nappe analysis and integrative simulation of natural geographical factors in Erlong Lake watershed have been carried out based on GIS. The risk areas where non-point source pollution may occur were compartmentalized and assessed, and the total soil erosion and the runoffs of N and P with rainfall in this valley were worked out by experiment and GIS mapping. The study indicated that the main type of soil erosion was moderate (erosion modulus is 1000-2500t/(km²·a)) at present, and the intense erosion areas are located in dry land with variable slope east of the lake and the midded ied ied ied ied ied ied ied iuntainous region (erosion modulus is more than 5000t/(km²·a)). Though the area is small, it should be paid attention to. The trend of non-point source pollution (NSP) of nitrogen and phosphorus loss was corresponded with the soil erosion. Spatial distribution and the reasons of the distribution difference have been presented and it was emphasized that the human activities among the influence factors was the most important. It surely offers a scientific basis to control and prevent non-point source pollution in the watershed.

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SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

作者简介: WANG Ning(1952- ),female, a native of Beijing, associate professor, Ph.D., specialized in water and soil conservation and pollution control. E-mail: nwang@nenu.edu.cn

SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

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SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

1. Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China; 2. Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

作者简介: WANG Ning(1952- ),female, a native of Beijing, associate professor, Ph.D., specialized in water and soil conservation and pollution control. E-mail: nwang@nenu.edu.cn

English Abstract

SPATIAL ANALYSIS OF SOIL EROSION AND NON-POINT SOURCE POLLUTION BASED ON GIS IN ERLONG LAKE WATERSHED, JILIN PROVINCE

1. Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China; 2. Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

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目录

作者简介:
WANG Ning(1952- ),female, a native of Beijing, associate professor, Ph.D., specialized in water and soil conservation and pollution control. E-mail: nwang@nenu.edu.cn

1. Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China;

2. Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China

作者简介:
WANG Ning(1952- ),female, a native of Beijing, associate professor, Ph.D., specialized in water and soil conservation and pollution control. E-mail: nwang@nenu.edu.cn

1. Department of Environmental Science, Northeast Normal University, Changchun 130024, P. R. China;

2. Laboratory of Geographic Information Project, Northeast Normal University, Changchun 130024, P. R. China