| 西藏水土流失敏感性评价及其空间分异规律 |
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| 引用本文： | 王小丹,钟祥浩,范建容.西藏水土流失敏感性评价及其空间分异规律[J].地理学报(英文版),2004,14(1):41-46. |
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| 作者姓名： | 王小丹 钟祥浩 范建容 |
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| 作者单位： | InstituteofMountainHazardsandEnvironment,CAS,Chengdu610041,China |
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| 基金项目： | National Natural Science Foundation of China，No.50099620 |
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| 摘 要： | Based on Universal Soil Loss Equation and methods of mathematics model and GIS analysis, this study classified influence of precipitation, soil, topography and vegetation upon sensitivity of soil erosion into five different degrees which are extreme sensitivity, quite sensitivity, sensitivity, less sensitivity and no sensitivity. Assessment map of each factor was generated separately. Integrated assessment map of sensitivity of soil erosion has also been drawn by overlapping function with Arcinfo. Furthermore, the study analyzed distribution characteristics and spatial difference of sensitivity of soil erosion under special plateau environment of Tibet. According to sensitivity degree, some important controlling regions was confirmed so that departments of water conservancy, traffic management and agriculture could make scientific and reasonable decisions for their respective subject planning.
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| 关 键 词： | 水土流失 敏感性评价 空间分异规律 数学模型 西藏 |
| 收稿时间： | 2003-07-17 |
Assessment and spatial distribution of sensitivity of soil erosion in Tibet |
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| Wang,Xiaodan,Zhong,Xianghao,Fan,Jianrong.Assessment and spatial distribution of sensitivity of soil erosion in Tibet[J].Journal of Geographical Sciences,2004,14(1):41-46. |
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| Authors: | Wang Xiaodan Zhong Xianghao Fan Jianrong |
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| Institution: | Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, China |
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| Abstract: | Based on Universal Soil Loss Equation and methods of mathematics model and GIS analysis, this study classified influence of precipitation, soil, topography and vegetation upon sensitivity of soil erosion into five different degrees which are extreme sensitivity, quite sensitivity, sensitivity, less sensitivity and no sensitivity. Assessment map of each factor was generated separately. Integrated assessment map of sensitivity of soil erosion has also been drawn by overlapping function with Arcinfo. Furthermore, the study analyzed distribution characteristics and spatial difference of sensitivity of soil erosion under special plateau environment of Tibet. According to sensitivity degree, some important controlling regions was confirmed so that departments of water conservancy, traffic management and agriculture could make scientific and reasonable decisions for their respective subject planning. |
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| Keywords: | soil erosion sensitivity spatial difference Tibet |
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