| 中国的公路建设与景观破碎程度 |
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| 引用本文： | 李双成,周巧富,王磊.中国的公路建设与景观破碎程度[J].地理学报(英文版),2005,15(1):123-128. |
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| 作者姓名： | 李双成 周巧富 王磊 |
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| 作者单位： | College of Environmental Sciences，Peking University，The Key Laboratory for Earth Surface Processes，Ministry of Education，Beijing 100871，China，College of Environmental Sciences，Peking University，The Key Laboratory for Earth Surface Processes，Ministry of Education，Beijing 100871，China，College of Environmental Sciences，Peking University，The Key Laboratory for Earth Surface Processes，Ministry of Education，Beijing 100871，China |
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| 摘 要： | The phenomenon of habitat fragmentation which was resulted from anthropogenic disturbances for natural landscape or ecosystems such as removing original land cover, creating edge habitat, altering landscape structure and function, and increasing access fo…
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| 收稿时间： | 6/9/2004 12:00:00 AM |
| 修稿时间： | 21 November 2004 |
Road construction and landscape fragmentation in China |
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| Shuangcheng Li,Qiaofu Zhou,Lei Wang.Road construction and landscape fragmentation in China[J].Journal of Geographical Sciences,2005,15(1):123-128. |
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| Authors: | Shuangcheng Li Qiaofu Zhou Lei Wang |
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| Institution: | College of Environmental Sciences, Peking University; The Key Laboratory for Earth Surface Processes, Ministry of Education, Beijing,100871,China |
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| Abstract: | The landscape fragmentation caused by road construction has many direct and indirect impacts on wildlife and ecosystems. By using the GIS and statistic software of fragmentation computation, a comprehensive index, road-induced landscape fragmentation index (RLFI), is proposed to quantify the degree of landscape fragmentation resulting from different levels of road constructions. The results show that road-induced fragmentation index in China ranges from 0.987 to 3.357, with a mean of 1.846 in 2002. The regional differences of landscape fragmentation are obvious and scoring sequence is: North China (2.65) > East China (2.62) > Central China (2.60) > South China (2.51) > Southwest China (2.34) > Northeast China (2.19) > Inner Mongolia (1.88) > Northwest China (1.67) > Qinghai-Tibet Plateau (1.65). The anisotropic analysis indicates that the variation of fragmentation index in east-west direction is larger than that in south-north direction. |
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| Keywords: | landscape fragmentation road construction China |
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