摘要:城市生态空间是维护城市生态安全和提供持续生态服务的基本保障。以杭州市为研究区，从城市生态斑块的自然、人工以及自然-人工交互的属性特征3个方面选取了12个评价因子建立辨识指标体系，采用空间加权叠加的方法评价生态空间强度并识别核心型、辅助型、底线型生态空间和非生态空间4种类型。研究表明：（1）建立的辨识体系较好地反映了城市生态空间分布情况，适用于城市生态空间识别；（2）核心生态空间以林地为主要用地类型，集中分布在城市西翼，辅助型生态空间围绕核心生态空间周边。两类生态空间分别占总面积的21.28%、20.33%。（3）杭州市生态空间在分布上呈现出局部聚集的特征。以北部余杭区分布最为集中，且斑块连通度较高。城市不同区域生态空间分布特征具有较大差异性，针对其空间分布与生态功能提出不同的管理建设措施，能够为研究区未来的生态基础设施建设与维护提供科学依据。



Abstract:Urban ecological space is the basic guarantee for maintaining ecological safety and providing sustainable ecological services. An integrated identification index system is established on the basis of natural, artificial, and natural-artificial interactive attributes of the ecological patch, considering its own functions and structural importance in the landscape. We used Hangzhou as an example to assess urban ecological space on the basis of the index system in combination with spatial weighted superposition. The results show that this index system reflects the layout of the urban ecological space well, attesting its feasibility for urban ecological space identification. Four types of urban ecological space, namely, core, auxiliary, transitional, and non-ecological space, were identified. The core ecological space, which mainly consists of forest land, is situated in the western part of the city, whereas the auxiliary ecological space is located around the core ecological space. These two types account for 21.28% and 20.33% of the areas, respectively. The spatial distribution of ecological space in Hangzhou is characterized by local agglomeration. The ecological space is concentrated mostly in the northern suburb, where patch connectivity index is high. The distribution characteristics of ecological space vary greatly in different urban areas. All these results provide a scientific basis for future construction and protection of ecological infrastructure in the study area.





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