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Land Use of the Three Gorges Reservoir Area and the Effect on Its Landscape Pattern in the Recent 50 Years

Wuhan University Journal of Natural sciences 2006年第4期11卷 910-914页

作者： huang zhiqin 1,2.3 , zhou wancun 1 ,zhou jieming 4 , zhu mingcang 3,5.1. institute of mountain hazards and environment, chinese Academy of sciences , chengdu 61004., sichuan, china 2. Graduate University of chinese Academy of sciences, Beijing 100049, china 3. sichuan institute of Land Resource Management, chengdu 61004., sichuan , china 4. Department of Resources and environment Science, sichuan Normal University , chengdu 610061, sichuan, china 5. College of Information Engineering, chengdu University of Technology, chengdu 610059, sichuan, china institute of mountain {2. and environment Chinese Academy of Sciences Chengdu Sichuan China Graduate University of chinese Academy of sciences Beijing China sichuan institute of Land Resource Management Chengdu Sichuan China Department of Resources and environment Science Sichuan Normal University Chengdu Sichuan China College of Information Engineering Chengdu University of Technology Chengdu Sichuan China

The paper makes detailed analysis on the changing processes of the main types of land use in Three Gorges Reservoir Area through the techniques of RS （Remote Sense） and GIS （Geography Information System）. Based on the theory of landscape ecology, many types of landscape pattern indexes are calculated and made correlation analysis. The results indicate that： in 1995 the ecological environment of Three Gorges Reservoir Area was the most vulnerable in the recent 50 years, but resumed in 2.02. the landscape pattern diversity index, fractal dimension index and fragmentation index has close correlation with the area of land use/cover change （LUCC）. The research also releases that the increase of the cultivated land, grassland and construction land deteriorates the landscape ecological pattern, while the increase of forest land area will help restore the landscape ecological pattern to its original state. The rapid change of grassland is an important index of the change of landscape pattern, because it has the most effect on change of landscape pattern index.

关键词： the Three Gorges Reservoir Area land use/cover change landscape pattern.

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