基于MSPA-InVEST模型的水网乡村绿色基础设施网络构建研究——以吴江东北片区为例  

Research on the Construction of Green Infrastructure Network in the Water Net Countryside Based on MSPA-InVEST Model——A Case Study of the Northeast Area of Wujiang

作　　者：丁金华[1] 孙琦 钱晶 DING Jin-hua;SUN Qi;QIAN Jing(School of Architecture and Urban Planning,Suzhou University of Science and Technology,Suzhou 215011,Jiangsu,China)

机构地区：[1]苏州科技大学建筑与城市规划学院,江苏苏州215011

出　　处：《西北林学院学报》2022年第6期183-191,共9页Journal of Northwest Forestry University

基　　金：国家自然科学基金项目(41301191);江苏省建设系统科技项目(2018ZD243);苏州科技大学教学改革与研究项目(2019JGMK-01);苏州科技大学风景园林学学科项目。

摘　　要：苏南水网乡村作为长三角一体化发展的重要区域,经济快速发展的同时,建设强度也在不断增加,水网空间面临着巨大冲击,乡村环境问题日益突出,构建绿色基础设施(GI)网络保护和恢复水网乡村生态环境,对建设长三角生态绿色一体化发展示范区具有关键作用。以苏州市吴江东北片区为研究区域,综合运用MSPA-InVEST模型识别GI网络中心,采用最小累积阻力模型和重力模型提取GI连接廊道,叠加孤岛和连接廊道选取GI独立场地。结果表明,吴江东北片区大尺度GI网络中心连通性尚好,中小尺度GI网络中心连通性欠缺,生境质量整体较高;通过识别网络中心16个、连接廊道120条(重要连接廊道35条)、独立场地8个,构建水网乡村绿色基础设施网络,为长三角一体化发展战略背景下的水网乡村生态文明建设提供新思路。As an important area for the integrated development of the Yangtze River Delta,the water net countryside in southern Jiangsu has been developed rapidly in economy.The construction intensity is also increasing,the water net space is facing a huge impact.The rural environmental problems are becoming increasingly prominent.Building a green infrastructure(GI)network to protect and restore the water net in rural ecological environment plays a key role in the construction of"the Demonstration Zone in the Yangtze River Delta on Ecologically Friendly Development".Taking the northeast part of the Wujiang District,Suzhou City as the research area,comprehensively using MSPA-InVEST model to identify the hubs of GI,and adopting the least-cost path method and gravity model,the corridors of GI were extracted,and the independent GI sites were selected by stacking islands and connecting corridors.The results indicated that the large-scale GI network center presented good connectivity,while small-scale GI network center was deficient in the connectivity.The overall habitat quality was acceptable.By identifying 16 network centers,120 connecting corridors(35 important connecting corridors)and 8 sites,a water network countryside GI network was established,so as to provide new ideas for the construction of water network countryside ecological civilization under the background of the strategy for integrated development of the Yangtze River Delta.

关 键 词：绿色基础设施 MSPA INVEST 水网乡村 

分 类 号：TU985[建筑科学—城市规划与设计]