摘要:市域绿色空间是市域尺度内连接城市生态系统与自然生态系统的纽带，是维护市域整体生态系统稳定的基本保障。现阶段以中心城区为核心的城市绿地系统空间规划忽视了城市化过程中自然与城市之间发生的动态变化，忽视了市域绿色空间对城乡人居环境质量的决定作用。构建良好的市域尺度绿色空间体系，能够实现市域层面的生态环境稳定，协调城市化发展与自然资源保护之间的矛盾，对城市可持续发展有着积极意义。以招远市域绿色空间为研究对象，借助形态学空间格局分析（MSPA）方法，利用其研究尺度兼容性强、景观要素生态内涵明确、所得成果便于量化评估等优势特性，首先对招远市域绿色空间中的重要景观要素核心区、桥接区进行识别，并提取具有生态拓补潜力的景观要素孤岛作为未来绿色空间优化潜力节点的空间落点；其次选用可能联通性（PC）、斑块重要度等指数量化景观要素对绿色空间的重要度并进行评价分级；然后将核心区和潜力节点作为生态源，通过不同景观要素对物种流通的阻力构建消费阻力面，以最小路径方法得出场地内的潜力生态廊道；再次，通过通量分析定性不同生态斑块在生态过程中的功能角色，并借助核密度分析对潜力生态网络的发展趋势进行测度；最终以发展趋势较弱区域中对整体生态网络联通具有较高贡献度，并在生态过程中扮演踏脚石的一二级潜力节点斑块作为未来生态发展中的重要关键点进行生态质量提升，得出招远市域绿色空间发展结构，并提出科学的空间优化指引和发展建议。本研究可以为高度破碎化地区的绿色空间构建提供一定的理论依据，对我国城市化发展中其他地区的市域绿色空间构建也具有一定的参考和示范意义。



Abstract:Urban-scale green space is the link between the urban and natural ecosystems within cities, as well as a basic guarantee for maintaining the stability of the overall ecosystem of the city. Currently, spatial planning of the urban green space system do not consider the dynamic changes between nature and the city during the urbanization process, thereby overlooking the crucial role of urban green space in the quality of urban and rural living environments. Constructing a good city-scale green space system can aid in achieving ecological environmental stability at the urban-scale level, coordinating the contradiction between the development of urbanization and the protection of natural resources, and thus develop significant positive inputs for the sustainable development of the city. In this study, the green space of Zhaoyuan City was selected as the experimental site, and the morphological spatial pattern analysis (MSPA) method was used to owing to its strong research-scale compatibility, clear ecological connotation of landscape elements, and ease to quantitatively evaluate the results. First, we identified the core areas and bridge areas of important landscape elements in the green space of the city. Thereafter, we extracted the isolated islands of landscape elements with potential ecological extension as spatial points of potential future green space optimization nodes. Second, we selected the probability of connectivity (PC) and node importance, evaluating the importance of and ranking the landscape elements of green space. Third, the core area and potential nodes were used as ecological sources to construct a consumption resistance surface through the resistance of different landscape elements to species circulation. The potential ecological corridors within the site were derived using the minimum path method. Finally, we characterized the first- and second-level potential node plaques that had a higher contribution to the overall ecological network connectivity in the weaker development zones, and acted as a stepping stone in the ecological process, as important points for ecological quality improvement in future ecological development. On the basis of our findings, we propose the green space development structure of Zhaoyuan city. Additionally, scientific spatial optimization guidance and development recommendations are provided. This study offers a theoretical basis for the construction of green space in highly fragmented areas. In addition, it has both reference and demonstration significance for the construction of urban green spaces in other urbanization areas in China.





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