Research on the Path of Carbon Fixation and Carbon Sink in Urban Space under Dual Carbon Target
Exploring the comprehensive carbon sequestration mechanism of urban composite carbon sinks with the goal of increasing carbon sequestration in urban space,proposing corresponding spatial optimization methods,and constructing a low-carbon urban spatial planning method system.The method relies on multi-source data to construct a spatiotemporal database of urban carbon sources and carbon sinks.The entropy weight TOPSIS model is used to evaluate the current urban spatial carbon sequestration efficiency and reveal the pattern of urban composite carbon sink spatial carbon sequestration efficiency;Using a coupling coordination model combined with regression analysis,identify the key spatial driving factors for the coupling coordination of carbon sequestration efficiency between artificial and natural carbon sinks,and explore the spatial impact mechanism of carbon sequestration efficiency in urban composite carbon sinks;Using the OLS-GWR model,clarify the spatial differences in the degree of influence of various environmental factors,and explore the environmental impact mechanism of carbon sequestration efficiency in urban composite carbon sinks.Based on the research results of the mechanism,the multi-scale spatial optimization methods under the goal of increasing sinks were explored to guide the rational layout of urban space.Research can form a systematic planning method of spatial evaluation mechanism research spatial optimization,providing scientific basis for the achievement of urban low-carbon development and carbon neutrality goals.
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