成都市主城区绿色基础设施遥感解译及其生态服务现状研究
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国家自然科学基金青年项目“川藏铁路(川西段)沿线自然保护区过渡区生态安全格局构建研究”(编号:51908470)


Research on Remote Sensing Interpretation and Ecological Service Status of Green Infrastructure in the Main Urban Area of Chengdu
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    摘要:

    城市绿色基础设施(Urban Green Infrastructure,UGI)的广泛应用,正在持续重塑全球城市景观,对城市生态系统服务产生重要影响。成都作为紧邻川西高原的内陆盆地城市,其城市景观在UGI构成的多样性等方面与中国其他城市具有显著差异。以成都城市景观为中心展开综合调查,使用地理信息系统、生态服务建模和空间分析来量化UGI对生态服务的影响,并采用系统化方法将UGI整合到优化城市生态系统服务的规划建议中,为快速城市化中的成都主城区UGI空间布局优化,特别是空间聚集程度冷点区域改善,提供具体的解决策略。总结出三个关键趋势:(1)成都市的土地利用发生了重大变化,以城市区域绿色空间的显著缩小和建设用地的显著扩大为特征,主要归因于人口增长和土地利用模式的变化;(2)空间聚集程度热点和冷点的调查分析显示,主城区大多数温度冷点位于成都的东部,而基于其价值的热点最高集中度位于南部地区;(3)对UGI内碳密度的分析显示,生态系统服务集中度的峰值出现在城市中心区域。

    Abstract:

    The widespread application of Urban Green Infrastructure (UGI) continuously reshapes the global urban landscape and significantly impacts urban ecosystem services. As an inland basin city adjacent to the western Sichuan Plateau, Chengdu’s urban landscape differs considerably from that of other cities in China in terms of the diversity of UGI composition. This article conducts a comprehensive investigation centered on the urban landscape of Chengdu, utilizing geographic information systems, ecological service modeling, and spatial analysis to quantify the profound impact of UGI on ecological services. A systematic approach is adopted to integrate UGI into planning recommendations for optimizing urban ecosystem services, providing specific solutions for optimizing the spatial layout of UGI in the main urban area of Chengdu during rapid urbanization, especially for improving biodiversity hotspots. The study summarized three key trends: (1) Significant changes in land use in Chengdu, characterized by a significant reduction in green space in urban areas and a significant expansion of construction land, have been mainly attributed to population growth and changes in land use patterns. (2) The investigation and analysis of spatial clustering hotspots and cold spots reveal that most of the temperature cold spots in the main urban area are in the eastern part of Chengdu, while the highest concentration of hotspots based on their value is in the southern region. (3) The analysis of carbon density within UGI indicates that the peak of ecosystem service concentration occurs in the central urban areas.

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  • 在线发布日期: 2025-01-20
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