| 基于GIS技术的典型岩溶石山区土壤侵蚀危险性评价--以广西平果县果化示范区为例 |
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| 引用本文： | 覃小群,邓艳,蓝芙宁,侯满福.基于GIS技术的典型岩溶石山区土壤侵蚀危险性评价--以广西平果县果化示范区为例[J].安全与环境工程,2005,12(4):69-72. |
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| 作者姓名： | 覃小群 邓艳 蓝芙宁 侯满福 |
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| 作者单位： | 中国地质科学院岩溶地质研究所,广西,桂林,541004;中国地质科学院岩溶地质研究所,广西,桂林,541004;中国地质科学院岩溶地质研究所,广西,桂林,541004;中国地质科学院岩溶地质研究所,广西,桂林,541004 |
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| 摘 要： | 针对岩溶石山区土壤侵蚀危险性评价问题,以广西平果县果化示范区为例,从分析土壤侵蚀的影响因子入手,建立了示范区的土壤侵蚀危险性评价模型.选取的评价因子为地形坡度、植被覆盖度和土层厚度等3个关键因子,并利用层次分析法确定了评价因子的相对权重,同时以ArcGIS 8 Desktop为平台,利用系统的空间分析工具,通过模型的空间关系识别和叠加分析,实现了示范区土壤侵蚀危险性评价.
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| 关 键 词： | 岩溶山区 土壤侵蚀 地理信息系统 评价 |
| 文章编号： | 1671-1556(2005)04-0069-04 |
| 收稿时间： | 2005-08-29 |
| 修稿时间： | 2005年8月29日 |
Assessment on the Soil Erosion in the Karst Mountainous Region Based on GIS Taking Guohua Ecological Target Area for Example |
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| QIN Xiao-qun,DENG Yan,LAN Fu-ning,HOU Man-fu.Assessment on the Soil Erosion in the Karst Mountainous Region Based on GIS Taking Guohua Ecological Target Area for Example[J].Safety and Environmental Engineering,2005,12(4):69-72. |
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| Authors: | QIN Xiao-qun DENG Yan LAN Fu-ning HOU Man-fu |
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| Institution: | Institute of Karst Geology, China Academy of Geological Science, Guilin 541004, China |
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| Abstract: | In the light of the particularity of soil erosion in Karst mountainous region, by way of analyses of the factors affecting soil erosion, assessment model of dangerous soil erosion for Guohua ecological region, Pingguo County, has been established. The danger of soil erosion was mainly subject to the three factors of slope, degree of plant-cover and thickness of soil. Weighing set of factors was evaluated by means of analytical hierarchy process. By way of spatial analysis based on ArcGIS and identification of spatial relationship between the datasets , evaluation of the danger of soil erosion has been made and the results are analyzed. |
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| Keywords: | karst mountainous region soil erosion GIS assessment |
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