Spatial Pattern Evolution and Carbon Metabolism of"Production-Living-Ecological"Space in Karst Mountain Cities——Taking Guiyang City as an Example
Taking Guiyang City as an example,the paper explores the coupling relationship between the spatial pattern evolution of"production-living-ecological"space and urban carbon metabolism in karst mountain cities,which is helpful for the collaborative optimization of"production-living-ecological"space resources and provides theoretical support for future low-carbon urban planning.By constructing a classification system of"production-living-ecological"space and carbon source(sink)attributes,this paper analyzes the evolution characteristics of the spatial pattern of"production-living-ecological"space in Guiyang City from 2010 to 2020 by using the transfer matrix,and explores the carbon metabolism process and its ecological relationship of the spatial evolution of"production-living-ecological"space by using the carbon flow model and ecological network analysis method.The results suggested that:①"production-living-ecological"space in Guiyang has changed significantly during 2010-2020,with industrial production space and urban living space showing a continuous growth trend,rural living space showing a trend of first increasing and then decreasing,and the rest of the spatial land showing a decreasing trend.②The vertical carbon flux and horizontal net carbon flow in Guiyang are both negative,and the spatial pattern evolution of"production-living-ecological"space has led to an increase in carbon emissions,and there is an obvious imbalance in the carbon budget.③ During the whole study period,the predatory restriction relationship was always dominant.The reciprocal symbiotic relationship increased significantly,and the competitive relationship also appeared with the more and more intense evolution of the spatial pattern of"production-living-ecological"space.The evolution of the spatial pattern of"production-living-ecological"space in Guiyang has a positive impact on promoting the ecological relationship between green development.At the same time,there is obvious disharmony,and it is necessary to further build a low-carbon urbanization construction layout to promote green development.
"production-living-ecological"spacecarbon metabolismecological network utility analysisGuiyang City
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