| QUANTITATIVE STUDY OF SOIL EROSION AND ELEMENT RUN-OFF IN THE SONGHUA LAKE VALLEY |
| |
| 作者姓名： | WANGNing ZHUYan-ming WANGHui-lian |
| |
| 作者单位： | [1]DepartmentofEnvironmentalScience,NortheastNormalUniversity,Chtmgchun130024,P.R.China [2]NortheastInstituteofGeographyandAgriculturalEcology,ChineseAcademyofSciences,Changchun130012,P.R.China |
| |
| 基金项目： | UndertheauspicesofChineseAcademyofSciences(KZ952-S1-201) |
| |
| 摘 要： | Under the condition of different precipitation intensities, different gradients, different land-use types and different vegetation coverage, the soil erosion and transference of element (or pollutant) are studied by simulating and analyzing the surface run-off of experimental plots in the catchment area of Songhua Lake, with an area of about 43 370.8km^2. And the influencing factors that produce the spatial difference are analyzed and assessed. It is put for-ward that the irrational land utilization is the reason of soil erosion and pollutant run-off. The gradient of farmland,the growing season of vegetation and the vegetation coverage are chiefly restricting factors that lead to the soil ero-sion and pollutant run-off. This study can provide the fundamental data for comprehensive planning and harnessing of the non-noint source t3ollution in the valley.
|
| 关 键 词： | 土壤侵蚀 污染物 松花江 土地利用 植被覆盖 环境保护 |
| 收稿时间： | 13 January 2003 |
Quantitative study of soil erosion and element run-off in the Songhua Lake valley |
| |
| WANGNing ZHUYan-ming WANGHui-lian.QUANTITATIVE STUDY OF SOIL EROSION AND ELEMENT RUN-OFF IN THE SONGHUA LAKE VALLEY[J].Chinese Geographical Science,2003,13(3):238-241. |
| |
| Authors: | Wang Ning Zhu Yan-ming Wang Hui-lian |
| |
| Institution: | (1) Department of Environmental Science, Northeast Normal University, 130024 Changchun, P. R. China;(2) Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, 130012 Changchun, P. R. China |
| |
| Abstract: | Under the condition of different precipitation intensities, different gradients, different land-use types and different vegetation coverage, the soil erosion and transference of element (or pollutant) are studied by simulating and analyzing the surface run-off of experimental plots in the catchment area of Songhua Lake, with an area of about 43 370.8km2. And the influencing factors that produce the spatial difference are analyzed and assessed. It is put forward that the irrational land utilization is the reason of soil erosion and pollutant run-off. The gradient of farmland, the growing season of vegetation and the vegetation coverage are chiefly restricting factors that lead to the soil erosion and pollutant run-off. This study can provide the fundamental data for comprehensive planning and harnessing of the non-point source pollution in the valley. |
| |
| Keywords: | soil erosion pollutant run-off land-use type vegetation coverage |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
