基于景观格局分析的城市生态网络修复研究

Urban Ecological Network Restoration Based on Landscape Pattern Analysis

由绿地和水体等构成的城市生态网络呈现出高度的空间异质化特征,在强烈的人工干扰作用下,往往网络结构单一、空间破碎严重、生态服务功能退化,造成一系列城市生态问题。在城市层面上对生态网络进行结构修复和功能强化,对改善城市生态环境意义重大。从生态网络的景观格局与城市生态过程关联的视角切入,以ArcG IS作为数据分析平台,以景观格局指数集合作为核心指标,以哈尔滨市南岗区为研究案例,对网络结构特征、生态服务和社会服务进行量化评析,并提出改善网络结构、增强网络联通性、强化服务职能的网络修复策略,为我国城市生态网络修复提供新的技术解决方案。

Urban ecological network which is composed of green space and water is characterized by high spatial heterogeneity. Within the context of artificial interference, urban ecological network shows characters of construction demonization, spatial fragmentation and ecological function degradation. To solve urban ecological problems, it is important to improve the ecological environment of the city to repair and strengthen the ecological network at the city level. From the perspective of the relationship between landscape patterns in ecological networks and urban ecological processes, ArcGIS is used as a data analysis platform, landscape pattern index set cooperation as the core indicator, and Nangang district of Harbin City as a study case. The characteristics of network structure, ecological services and social services are quantitatively evaluated. We put forward the network repair strategy of improving network structure, enhancing network connectivity and strengthening service function, which provides a new technical solution for urban ecological network restoration in China.