水土保持通报2012，Vol.32Issue(3)：165-169,5.
土地生态系统位置型关键地段识别——以无锡市为例
Identification of Positional Critical Portion of Land Ecosystem——A Case Study of Wuxi City in the Yangtze River Delta Area
摘要
Abstract
Based on land use data of Wuxi City in 2005,the GIS technology and the Minimum Cumulative Resistance Model（MCR model） are applied to analyze the spatial potential developing trends of the sources of archipelago type and network type and identify positional critical portion.Results are as follows：（1） In Wuxi City,the critical portions of sources connecting type are arranged in three parts with amount of 23 patches.The area of invasion in Yixing part is the biggest;Jiangyin part,in the middle;and Binhu part,the smallest.The destroyed degree of invasion in Jiangyin part is the worst;Binhu part,in the middle;and Yixing part,the least.（2） The critical portions of network controlled type are arranged in two parts with amount of 40 patches.From both views of area of invasion and destroyed degree of invasion,Biyi part are bigger or worse than Jiangyin part.（3） The positional critical portions are in amount of 56 patches,which can be classified as two groups and eight sub-groups.Among these portions,the portions with key importance are in amount of 13 patches and the portions with common sense are in amount of 43 patches.The spatial arrangement of positional critical portions has a close relationship with that of physical geographic traits of studied area.关键词
土地生态系统/位置型关键地段/识别/无锡市/长三角地区Key words
land ecosystem/positional critical portion/identification/Wuxi City/Yangtze River Delta Area分类
生物科学引用本文复制引用
吴未,路平山..土地生态系统位置型关键地段识别——以无锡市为例[J].水土保持通报,2012,32(3):165-169,5.基金项目
中国博士后基金“基于景观格局的土地生态安全评价” （）
中国博士后基金特别资助“基于景观格局的长三角地区土地生态安全评价及其格局优化研究” （）
江苏省博士后基金“基于景观格局的长江三角洲地区土地生态安全评价” （）
