广西建设用地碳排放测算及时空演变特征研究

Research on the Spatiotemporal Evolution Characteristics and Calculation of Carbon Emissions from Construction Land in Guangxi

通过测算广西建设用地碳排放量,分析碳排放强度,研究广西各市碳排放空间差异和时序特征,为低碳目标下改进土地利用模式、优化土地利用结构、制定差别化低碳土地利用调控政策提供参考。研究结果:(1)广西建设用地碳排放量逐年增加,煤炭消费始终是最主要的碳排放来源;(2)广西建设用地碳排放强度在持续增长并有加重的趋势;(3)广西各县(区)建设用地碳排放量在不同时段的空间布局变化明显。研究结论:广西碳减排任务压力比较大,建议从改善能源利用方式、控制建设用地规模、调整优化产业结构等方面采取措施控制建设用地碳排放,推动低碳经济发展。

By measuring the carbon emissions of construction land in Guangxi,analyzing the carbon emission intensity,and studying the spatial differences and temporal characteristics of carbon emissions in various cities in Guangxi,this study provides reference for improving land use patterns,optimizing land use structures,and formulating differentiated low-carbon land use regulation policies under low-carbon goals.Research results(1)The carbon emissions from construction land in Guangxi have been increasing year by year,and coal consumption has always been the main source of carbon emissions;(2)The carbon emission intensity of construction land in Guangxi is continuously increasing and showing a trend of worsening;(3)The spatial layout of carbon emissions from construction land in various counties(districts)of Guangxi has shown significant changes in different time periods.Research conclusion The pressure of carbon reduction tasks in Guangxi is relatively high.It is recommended to take measures to control carbon emissions from construction land,such as improving energy utilization methods,con‐trolling the scale of construction land,and adjusting and optimizing industrial structure,in order to promote low-carbon economic development.