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《Chinese Journal of Ecology》 2015-07
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Landscape pattern optimization based on intensity of ecological function of mud flat reclamation: A case study of Dongtai County of Jiangsu Province

WANG Ming-yue;LI Jia-lin;ZHENG Zhong-ming;JIANG Wen-da;XU Liang-hui;YANG Lei;YUAN Qi-xiang;LU Xue-zhu;XIAO Wang;Department of Urban Science,Ningbo University;Research Center for Marine Culture and Economy;College of Marine Science,Ningbo University;Lianyungang Golden Coast Development and Construction Co.,LTD;  
Reclamation and development of coast zone has produced important influence on its landscape patterns and ecological processes. Taking Dongtai County,a typical reclamation district of Jiangsu Province,as a study area,this paper analyzed the spatial distribution characteristics of ecological function based on GIS space technology and the minimum cumulative resistance( MCR) model. Then the authors put forward the landscape pattern optimization model of Dongtai by constructing ecological sources,ecological corridors and ecological nodes. Long-time and large-scale reclamation led to high landscape fragmentation and low connectivity of landscape patterns. Ecological function in the study area gradually weakened from east to west. The space analysis of ecological function based on the cumulative resistance model is the key to locate the ecological sources and to analyze ecological stream running. Protecting sources,building corridors and strengthening nodes are the main optimization measures to improve the ecological functions.The study provides a scientific basis of decision-making for relevant departments to carry out targeted ecological protection in Dongtai.
【Fund】: 国家自然科学基金项目(41171073 41471004);; 浙江省自然科学基金项目(Y5110321);; 海洋公益性行业科研专项经费项目(201205005);; 宁波大学研究生科研创新基金项目(G14053);; 宁波大学重点学科课题(No.ZX2013000646)资助
【CateGory Index】: P748;P901
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