面向花园城市建设需求的社区景观生态系统服务供给与获取效率关系研究  

Research on the Relationship Between Supply and Acquisition Efficiency of Ecosystem Services in Community Landscape for the Needs of Garden City Construction

作　　者：周景宇 葛韵宇[1] 李方正[1] ZHOU Jingyu;GE Yunyu;LI Fangzheng(School of Landscape Architecture,Beijing Forestry University,Beijing,China,100083)

机构地区：[1]北京林业大学园林学院,北京100083

出　　处：《园林》2025年第2期31-41,共11页Landscape Architecture Academic Journal

基　　金：国家重点研发计划课题“城市蓝绿空间规划与生态系统服务功能优化技术”(编号:2022YFC3802603);北京市科协青年人才托举工程项目(编号:BYESS2022125)。

摘　　要：花园城市背景下需要深入探讨城市中人与自然的相互关系。研究社区景观生态系统服务的供给与居民获取效率,有助于以新的视角探讨这种关系,并促进生态系统服务低效空间的精准提升。基于社区景观生态系统服务评价和空间聚类分析,探究不同空间的生态系统服务特点;并通过耦合生态系统服务与可达性的评价结果,探究生态系统服务供给与获取效率的耦合协同关系;最后通过随机森林回归模型探究关键因素对二者耦合协同程度的影响。结果表明,综合过渡空间的社区景观综合服务指数较高,且服务异质性为三类空间中最高,可塑性强;大型绿地往往对应高耦合协同程度,孤立的小型绿地则很难提供高效的服务水平;局部围合且形状复杂的绿地结构有利于提升社区尺度生态系统服务的供给与获取效率;NDVI对于耦合协同的重要性程度最高且为正相关,居住建筑密度及功能设施密度则相反。根据研究结果,从服务功能重要性、服务功能结构性、服务功能可用性三个方面提出优化策略,旨在为花园城市背景下的社区景观生态系统服务供给与获取效率的协同提升提供参考。In the context of garden cities,it is necessary to deeply explore the city’s mutual relationship between people and nature.Studying the supply and acquisition efficiency of community landscape ecosystem services can help analyze this relationship from the perspective of the flow of ecosystem service supply and demand and promote the precise improvement of inefficient spaces in ecosystem services.This study is based on evaluating community landscape ecosystem services and spatial clustering analysis,exploring the level of ecosystem services in different spaces.By coupling the evaluation results of ecosystem services and accessibility,explore the coupling and synergistic relationship between ecosystem service supply and acquisition efficiency.Finally,it explores the influence of key factors on the degree of coupling and synergy between the two through a random forest regression model.The results indicate that the comprehensive transition space’s community landscape comprehensive service index is relatively high,and the service heterogeneity is the highest among the three types of spaces,with strong plasticity.Ample green space often corresponds to a high degree of coupling and collaboration,while isolated small green space makes it challenging to provide an efficient service level.The partially enclosed green space structure with a complex shape improves the supply and acquisition efficiency of the community-scale ecosystem;NDVI has the highest importance and positive correlation for coupling collaboration,while residential building density and functional facility density are the opposite.According to the research results,this paper puts forward optimization strategies from three aspects:the importance,the structure,and the availability of service functions,aiming at providing a reference for the collaborative improvement of community landscape ecosystem service supply and acquisition efficiency in the context of garden cities.

关 键 词：花园城市 生态系统服务 可达性 耦合协调度 

分 类 号：TU986[建筑科学—城市规划与设计]