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《Chinese Journal of Ecology》 2003-03
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Effect of landscape fragmentation on plant populations

QIN Fengfei, AN Suqing, ZHOU Yuanwu, XIANG Huajun, ZHENG Jiangwei,CHEN Xinglong (School of Life Science, Nanjing University, Nanjing 210093,China)  
Landscape fragmentation, a widespread phenomenon, was considered as a process in which the landscape not only break and disjoint each other but also change from simple to complex under the disturbance of anthropogenetic or other factors. The occurrence of landscape fragmentation directly or indirectly influences the structure, function and dynamics of landscape. The reasons that cause landscape fragmentation and the different embodiments that landscape fragmentation were studied with different directions and levels. Then, the effects of landscape fragmentation on plant populations discussed. Generally speaking, landscape fragmentation influences plant populations in terms of the size, extinction rate, dispersal, immigration, heredity, variation and population survival. On study methods, we sum up the methods and models that had been widely used in the field. There were three key problems existing in the current study of this field. Those are the absence of original material, good models, and the identification of interaction between fragmentation and other disturbance, such as pollution and climatic change that have a similar effect on plant populations.
【Fund】: 国家自然科学基金项目 (3 0 0 70 13 4);; 国家自然科学基金重点项目 (3 983 0 3 10 )
【CateGory Index】: Q948
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