供需失衡背景下非正式绿地更新潜力及策略研究——以福州市鼓台中心区为例  

Research on the Renewal Potential and Strategy of Informal Green Spaces in the Context of Supply-demand Imbalances:A Case Study Based on Gutai Central District in Fuzhou City

作　　者：曾燕芳 薛佳慧 王则琦 林妍 李房英[1] ZENG Yanfang;XUE Jiahui;WANG Zeqi;LIN Yan;LI Fangying

机构地区：[1]福建农林大学风景园林与艺术学院

出　　处：《南方建筑》2024年第5期83-94,共12页South Architecture

基　　金：福建省高校产学合作项目(2021Y4009):节能环保装配式立体绿化新技术研究;福州市科技计划项目(2021-S-207):公园绿地康复景观建设技术集成与示范;福建省社会科学规划项目青年项目(FJ2021C069):基于计算机视觉的城市绿道宜跑品质评价方法研究。

摘　　要：我国经济社会发展步入新常态,城市发展开启存量更新模式。居民绿地需求与绿地空间不足之间的矛盾日益凸显,已有研究证明,非正式绿地在城市建成环境中具有良好适应性,能够有效解决城市面临的一系列社会和生态问题,具备较大发展潜力。聚焦于绿地低供高需的城市区域,以福州市鼓台中心区为例,通过实地调研挖掘供需失衡区范围内可利用的非正式绿地资源。从时、空间可用潜力两个维度确定影响非正式绿地发展潜力的评价指标,建立多目标优化模型;引入帕累托前沿理论,利用Matlab中非支配排序遗传算法求解得出调研区域内对非正式绿地进行更新改造的多个解集的优先层级。最后基于综合评估结果和三种不同的场地类型提出非正式绿地的更新策略,为高密度老旧城区绿地的存量更新发展提供借鉴。As China's economy and society step into a new normal state with the process of urban renewal,attention is increasingly shifting to the highefficiency utilization of inventory resources.In this,green space construction is facing many challenges.In particular,the contradiction between residents'high demands for green space and the finite amount of available green space is becoming increasingly prominent in high-density cities.Thus,there is an urgent need to find an effective way to solve the contradiction between land scarcity and green space demand.Several studies have demonstrated that informal green land can be well adapted to the built environment in cities and can effectively solve several social and ecological problems in cities.As such,it has great development potential.However,research on informal green land is still in the exploration stage.Existing studies have mainly focused on the overall research framework;there is a lack of deep empirical research and discussion of specific implementation.Based on the imbalance between the supply and demand of green space in cities,a case study of Gutai Central District in Fuzhou City was carried out.The supply and demand levels of green space in 13 control planning units of the study area were evaluated.Specifically,there were five evaluation indices of supply,including the park green space area ratio,park green space area per capita,park green space accessibility,landscape pattern index,and overlapping rate of park green space service area.There were two evaluation indices for demand,including dynamic population distribution and point-of-interest(POI)distribution.Following this evaluation,the green space balance level of each unit was judged by introducing locational entropy.Hence,the units with the most serious green space imbalance were identified and their informal green spaces were studied.Unit 08 was chosen as the research sample.Through a field survey and screening,76 informal green blocks that were viewed as imbalanced were identified.An evaluation system fo

关 键 词：供需失衡 非正式绿地 帕累托最优解集 更新策略 

分 类 号：TU-023[建筑科学—建筑理论]