基于社会-生态功能复合与SPCA的城市绿地生态网络重要源地识别  

Identification of Important Sources of Urban Green Space Ecological Network Based on Social-Ecological Function Integration and SPCA

作　　者：仲启铖 张桂莲 张浪[3,4,5] ZHONG Qicheng;ZHANG Guilian;ZHANG Lang

机构地区：[1]上海市园林科学规划研究院林业科学研究所,上海200232 [2]上海市园林科学规划研究院林业碳汇计量监测中心,上海200232 [3]住房和城乡建设部科技委园林绿化专委会 [4]上海市园林科学规划研究院,上海200232 [5]上海城市困难立地绿化工程技术研究中心,上海200232

出　　处：《中国园林》2024年第2期117-123,共7页Chinese Landscape Architecture

基　　金：国家重点研发计划课题“典型城市廊道多功能耦合网络构建与生态修复技术”(编号2022YFC3802604);国家自然科学基金面上项目“城市生态廊道多尺度结构与功能连接度的关联机制”(编号32171569);上海市园林科学规划研究院院立基金项目“基于多模型集成的城市生态廊道智能构建技术研究”(编号2021-3-1)共同资助。

摘　　要：构建基于社会-生态功能复合的城市生态源地综合评价指标体系,以上海市闵行区城市绿地为对象,运用GIS、RS、Invest及景观连接度模型等方法计算指标,采用SPCA确定指标权重,通过空间加权计算和重分类识别重要源地。结果表明:(1)在424个备选源地中,极重要、重要、一般、不重要和极不重要等级面积占比分别为16.2%、16.1%、25.3%、23.0%和19.4%;(2)共识别极重要、重要源地139个,总面积18.61km^(2),平均面积0.134km^(2),占备选源地总面积的35.6%,占全区总面积的5.0%;(3)区域绿地是重要源地的主体,其次是公园绿地和附属绿地;(4)在规划实践中,可依托区域绿地开展绿林农湿多要素复合,提升源地总体规模和服务功能。研究成果可为上海及长三角其他城市精准识别城市绿地生态网络重要源地提供借鉴。In this paper,the comprehensive evaluation indicator system for urban ecological source based on social-ecological function integration was constructed.Taking urban green spaces in Minhang District of Shanghai as the research objects,various methods such as GIS,RS,Invest model,and landscape connectivity model were used to calculate the indicators.The indicator weight was determined using SPCA,and the importance grading of all candidate sources was achieved through spatial weighting calculation and reclassification.The results show that:(1)Out of the 424 candidate sources,the most important,important,ordinary,unimportant,and extremely unimportant levels account for 16.2%,16.1%,25.3%,23.0%,and 19.4%,respectively.(2)A total of 139 extremely important and important ecological sources were identified,covering an area of 18.61 square kilometers,with an average area of 0.134 square kilometers.These sources account for 35.6%of the area of all candidate sources and 5.0%of the total area of Minghang District.(3)Regional green spaces are the main parts of the important urban ecological sources,followed by park green spaces,and ancillary green spaces.(4)In planning practice,the scale and social-ecological functions of ecological sources can be enhanced by means of a combination of greenspace,forest,farmland,and wetland relying on the regional green spaces.The research results can provide valuable reference to accurately identify important ecological sources of green space ecological networks for Shanghai and other cities in the Yangtze River Delta.

关 键 词：风景园林 城市绿地 生态网络 生态源地 社会-生态功能 景观连接度 

分 类 号：TU986[建筑科学—城市规划与设计]