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苏伟忠, 杨桂山, 甄峰

Ecological Land Fr agmentation and Its Connectivity with Urbanization in the Yangtze River Delta

SU Weizhong, YANG Guishan, ZHEN Feng

地理学报 . 2007, (12): 1309 -1317 . DOI: 10.11821/xb200712007