基于关键物种与生境质量评估的昆明市 中心城区绿色空间生物多样性分布格局 研究

随着城市化进程的加快，城市生物多样性受到严重威胁，生物多样性热点分布区域的识别在城市生物多样性保护方面起着重要作用。以昆明市中心城区为例，首先对绿色空间进行解译，再运用MaxEnt模型识别关键物种分布区域，同时使用InVEST模型对生境质量进行评估，最后将绿色空间、关键物种适生区、生境质量分布进行叠加，分析昆明中心城区绿色空间的生物多样性分布格局。结果显示：生物多样性热点分布区占中心城区面积的38%，占中心城区绿色空间面积的89.5%。高生境质量绿色空间及核心绿色空间主要分布在城郊山地区域，整体性较强。关键物种分布绿色空间主要分布在建成区内城市绿地、河流或水面周围，分布较为零散。研究结果为城市绿色空间未来规划中的保护与发展提供了新的思路和理论支撑。

Study on the Biodiversity Distribution Pattern of the Green Space in the Central City of Kunming Based on the Key species and Habitat Quality Assessment

With the acceleration of urbanization, urban biodiversity is seriously threatened, and the identification of biodiversity hotspots plays an important role in the protection of urban biodiversity. Taking Kunming''s central city as the research area, first the green space was interpreted, and then the MaxEnt model was used to identify the distribution areas of key species. At the same time, the InVEST model was used to evaluate the habitat quality. Finally, the green space, the suitable areas for key species, and the habitat quality distribution were superimposed to analyze the biodiversity distribution pattern of the green space in the central urban area of Kunming. The research shows that the distribution areas of biodiversity hotspots account for 38% of the central city area and 89.5% of the green space in the central city area. And the high habitat quality green spaces and the core green spaces are mainly distributed in the suburban mountainous areas, with strong aggregation. Moreover, the key species distribution green spaces are mainly distributed around urban green spaces, rivers or water surfaces in built-up area, and the distribution is relatively scattered. The results provide new ideas and theoretical support for the protection and development of urban green space in the future planning.