碳中和目标下京津冀土地利用碳收支核算与空间优化研究OACHSSCD

Based on six periods of remote sensing image data of land use from 1995 to 2020,this paper calculates and analyzes the carbon budget of land use in the Beijing-Tianjin-Hebei region.The research conclusions are as follows:(1)over the past 25 years,the carbon emissions from land use in the Beijing-Tianjin-Hebei region have shown a significant"inverted U-shaped"feature,with construction land as the dominant carbon source;its spatial distribution shows a"core-periphery"gradient emission pattern,with the highest carbon emission intensity in the core area of Beijing-Tianjin-Tangshan,followed by the central and southern part of Hebei Province,and the northern Hebei Province ecological zone maintaining a low-carbon level;(2)although the total carbon sequestration shows a slow growth trend,the regional carbon deficit has continued to intensify,reflecting the ecological imbalance problem in the rapid urbanization process;(3)combined with the regional main function-oriented zoning and the carbon neutrality strategic goal,the territorial space of the Beijing-Tianjin-Hebei region is optimized and restructured into six types,namely,Low-Carbon Maintenance-Major Agricultural Product Product Areas,Carbon Intensity Control-Optimized Development Zones,Carbon Sink Function-Key Ecological Function Zones,Carbon Sink Function-Key Development Zones,High-Carbon Optimization-Optimized Development Zones,and High-Carbon Optimization-Key Development Zones.Based on the above conclusions and the problems existing in different regions,this paper proposes differentiated countermeasures and suggestions for low-carbon transformation and optimal resource allocation.