生态用地动态演变与热环境的空间自相关分析——以山西中部城市群为例

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Abstract To examine the spatial correlation between ecological land and thermal environment on an urban agglomeration scale, Landsat remote sensing images from 2010 to 2022 were used as data sources. Based on an analysis of the dynamic evolution of ecological land and thermal environment in the Shanxi central urban agglomeration, a spatial auto-correlation analysis was conducted on various aspects, including thermal contribution, land equilibrium, spatial distribution, and dynamic evolution. The results indicate the following:(1) In urban agglomeration ecological land, basic ecological land and auxiliary ecological land conversion occurred frequently. (2) From 2010 to 2022, the thermal environment in the study area exhibited complex changes. The high-temperature zone increased by up to 11.63%, while the sub-high temperature area decreased by 5.75%. Regions experienced temperature rise accounted for 19.40% of the total area, while areas with temperature decrease accounted for 24.16%. (3) There was a close spatial auto-correlation between ecological land and the thermal environment in the urban agglomeration. Based on the thermal contribution index, the thermal contribution ranking of ecological land types was:auxiliary ecological land (0.95) > non-ecological land (0.33) > fundamental ecological land (-1.29), which shows that basic ecological land has a significant cooling effect. There was a negative correlation between ecological land balance and surface temperature, among which the most significant was in 2010, with a Moran's I of -0.264 and significant spatial aggregation. In terms of spatial distribution, ecological land types and temperature zoning had a strong spatial correlation; the gravity center migration trajectory shows that the two were consistent in the dynamic change process. This study explores the spatial autocorrelation of ecological land evolution and thermal environment from the perspective of urban agglomerations, providing additional insights into the theory of thermal reduction for ecological land in urban agglomerations. It also offers a scientific basis for improving the thermal environment in urban agglomerations.

Key words： Shanxi central urban agglomeration ecological land thermal environment spatial autocorrelation

Received: 24 June 2023

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	XIA Sheng-jie
	CHEN Hui-ru
	ZHANG Jun-wei
	LIU Yan-hong

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XIA Sheng-jie,CHEN Hui-ru,ZHANG Jun-wei等. Spatial autocorrelation analysis of ecological land dynamic evolution and thermal environment: A case study of Shanxi central urban agglomeration[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(2): 1032-1040.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I2/1032

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