基于生态系统服务供需关系的福州绿地生态网络构建分区

Construction Zoning of Urban Green Space Ecological Network Based on Ecosystem Service Supply and Demand in Fuzhou

以福州市主城区为研究对象,在镇街尺度上分析生态系统服务供需协调、匹配和聚集空间关系特征,在此基础上提出绿地生态网络构建分区方案和管理策略,以期为福州市城市规划工作开展提供针对性指导。研究表明:1)福州市主城区各镇街绿地生态系统服务供需空间分布格局具有明显差异,生态系统服务供给呈现出由边界向城中心递减的趋势,而生态系统服务需求则呈现出截然相反的态势。2)生态系统服务供需匹配未有镇街落于好本底-高需求型,60.78%镇街落于差本底-高需求型,15.69%镇街落于差本底-低需求型,23.53%镇街落于好本底-低需求型。3)各镇街生态系统服务供需空间自相关关系呈负相关且以低-高或高-低聚集为主,其供需协调度平均值为0.27(基本平衡)。4)城市绿地生态网络构建划分为城市生态斑块修复型、绿地生态节点重构型和生态源地网络连通型3大类型6个分区。总体上提出保护现有生态资源、加强城市绿地基础设施建设、重构节点生态空间、发展生态经济的策略。

The research took the main urban area of Fuzhou Municipality as the research object,analyzed the characteristics of the coordination,matching and gathering spatial relationship of ecosystem services on the town and street scale,and proposed a green space ecological network construction zoning plan and management strategy on this basis,with a view to the urban planning of the city.The purpose of the study was to provide guidance for the work of city planning.The results showed that 1)the spatial distribution pattern of the supply and demand of green space ecosystem services of the city was significantly different in the main urban area.The supply of the ecosystem services showed a decreasing trend from the boundary to the down town,while the demand was in completely opposite trend.2)No matching was found in the good background-high demand type between supply and demand of ecosystem services,60.78%in the poor background-high demand type,15.69%in the poor background-low demand type,and 23.53%in the good background-low demand type.3)The spatial autocorrelation between supply and demand of ecosystem services in each town and street was negatively correlated and dominated by low-high or high-low aggregation,and the average coordination degree of supply and demand was 0.27(basically balanced).4)The construction of urban green space ecological network could be divided into three types and six regions:the urban ecological patch restoration type,the green space ecological node reconstruction type,and the ecological source network connection type.General suggestions for the strategies were given,such as protecting the existing ecological resources,strengthening the construction of urban green space infrastructure,reconstructing the ecological space of nodes,and developing the ecological economy.