| 摘要: |
| 公园绿地的供需研究对提升城市公园绿地的生态系统服务效率和优化空间布局有重要的作用。针对现有供需研究存在精细空间尺度下拓展分析的不足，聚焦于地块尺度的公园绿地的供需研究，通过供需测度揭示杨浦区公园绿地供给能力与需求水平在空间上的真实匹配状况。首先，通过相关研究选取冷岛效应、归一化植被指数（NDVI）和公园服务半径覆盖率等8个表征公园绿地供给能力的供给指标以及兴趣点（POI）密度、容积率、总人口密度等7个表征需求能力的指标来构建供需匹配的指标评价体系和供需匹配模型。其次，通过供需匹配类型、耦合度和协调发展度计算得出杨浦区各个地块层面上的公园绿地供需情况，进而得出杨浦区公园绿地整体上呈现供需不匹配不协调，整体失配程度高且空间分布失衡的基本特征。最后，针对杨浦区公园绿地供需失配问题提出更具体、更有针对性的公园绿地空间布局优化策略，为城市公园绿地的存量更新与规划设计提供精细有效的技术支持和决策依据。 |
| 关键词: 风景园林 公园绿地 供需匹配 耦合协调发展度 上海市杨浦区 |
| DOI：10.14085/j.fjyl.2021.02.0022.06 |
| 分类号:TU985 |
| 基金项目:国家自然科学基金面上项目（编号 51978479）；上海市科技创新行动计划课题（编号 19DZ1203303）；中央高校基本科研业务费专项资金（编号 22120200082） |
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| Measurement and Optimization of Supply and Demand of Park Green Space at Urban Block Scale: A Case Study of Yangpu District, Shanghai |
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WANG Mangmang1, WANG Yuncai2
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1.Shanghai Urban Construction Vocational College;2.Tongji University
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| Abstract: |
| The research on the supply and demand of park green space plays an important role in improving the ecosystem service efficiency and spatial layout of urban park green space. In view of the deficiency in extended analysis at the fine spatial scale of the existing researches on the supply and demand, this paper focuses on the supply and demand research of park green space at the urban block scale. It reveals the real spatial matching of the supply capacity and demand level of park green space in Yangpu District. Firstly, it selects eight supply indexes, including cold island effect, normalized difference vegetation index (NDVI) and park service radius coverage rate, to represent the supply capacity of park green space. It also adopts the point of interest (POI) density, plot ratio, total population density and other indicators that represent the demand capacity. Then it constructs the supply and demand matching evaluation index system and model. Secondly, through the calculation of the matching type, coupling degree and coordination development degree, it obtains the supply and demand of park green space at each block level in Yangpu District. It concludes that the park green space in Yangpu District is faced with the basic characteristics of mismatch between supply and demand, and there is a high degree of overall mismatch and unbalanced spatial distribution. Finally, the paper puts forward more specific and targeted strategies to optimize the spatial layout of park green space, providing precise and effective technical support and decision-making basis for the renewal, planning and design of park green space. |
| Key words: landscape architecture park green space supply and demand matching degree of coupling coordination development Yangpu District of Shanghai |
