| Evaluation of Eco-Environmental Frangibility Based on Remote Sensing and Geographic Information System |
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| 作者姓名： | WU Hua TAO Heping LU Yuan |
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| 作者单位： | [1]Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | Supported by the Department of Science and Technology of Fujian Province （20031015）, 0pen Foundation of State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing （WCL （02）0104） |
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| 摘 要： | The eco-environmental frangibility is studied by choosing the factors of land use class change and vegetation cover rate, and the equation of eco-environmental frangibility and its evaluation system are established based on remote sensing （RS） and geographic information system technology （GIS）. Four different years of TM images are selected to calculate land use change grads and vegetation cover rate, and the relationship between the two factors and eco-environment frangibility index are build, taking Fuzhou as an example. The character of times change and space distribution of eco-environment frangibility are described. The result indicates the area of eco-environment frangibility increased 2.6% in Fuzhou during twelve years, and expands from the region between infield and forest land to forest land in space distribution.
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| 关 键 词： | 生态环境评估 脆弱性 遥感技术 地理信息系统 土地使用 植被覆盖率 |
| 文章编号： | 1007-1202（2007）04-0715-06 |
| 修稿时间： | 2006-10-11 |
Evaluation of eco-environmental frangibility based on remote sensing and geographic information system |
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| WU Hua TAO Heping LU Yuan.Evaluation of Eco-Environmental Frangibility Based on Remote Sensing and Geographic Information System[J].Wuhan University Journal of Natural Sciences,2007,12(4):715-720. |
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| Authors: | Hua Wu Heping Tao Yuan Lu |
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| Institution: | (1) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China;(2) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China |
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| Abstract: | The eco-environmental frangibility is studied by choosing the factors of land use class change and vegetation cover rate,and the equation of eco-environmental frangibility and its evaluation system are established based on remote sensing(RS) and geographic information system technology(GIS) . Four dif-ferent years of TM images are selected to calculate land use change grads and vegetation cover rate,and the relationship be-tween the two factors and eco-environment frangibility index are build,taking Fuzhou as an example. The character of times change and space distribution of eco-environment frangibility are de-scribed. The result indicates the area of eco-environment frangibil-ity increased 2.6% in Fuzhou during twelve years,and expands from the region between infield and forest land to forest land in space distribution. |
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| Keywords: | eco-environment frangibility RS(remote sensing) land use vegetation coverage rate |
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