摘要
土地利用变化与区域碳排放存在相互关系.基于土地利用和能源消耗数据,结合Dagum基尼系数以及GTWR模型,剖析2005—2019年成渝城市群土地利用碳排放时空异质性、区域差异,进而探究影响因素变迁特征.结果表明:(1)2005—2019年,区域碳排放总量由8111万t增加到17457万t,碳排放强度由0.92 t下降到0.31 t.二者均呈现空间不均衡性特征.(2)区域差异基尼系数超过0.4的警戒线,区域间碳排放协调发展问题应成为关注重点.(3)影响因素作用大小为人口规模>经济发展水平>能源强度>城市化水平.决策者应充分考虑区域碳排放时空不均衡性,因地制宜制定减排政策.
Land use change and regional carbon emissions have mutually related.Based on land use and energy consumption data,combined with Dagum Gini coefficient and GTWR model,the temporal and spatial heterogeneity and regional differences of land use carbon emissions in Chengdu-Chongqing urban agglomeration from 2005 to 2019 were analyzed,and then the characteristics of influencing factors were explored.The results show that:(1)From 2005 to 2019,the total regional carbon emissions increased from 81.11 million tons to 174.57 million tons,and the carbon emission intensity decreased from 0.92 tons to 0.31 tons.Both are characterized by spatial imbalance.(2)If the Gini coefficient of regional differences exceeds the warning line of 0.4,the coordinated development of carbon emissions between regions should become the focus of attention.(3)The size of the influencing factors is population size>economic development level>energy intensity>urbanization level.Decision makers should fully consider the spatial and temporal imbalance of regional carbon emissions and formulate emission reduction policies according to local conditions.
作者
赖德琳
胡燕
王玉贵
LAI Delin;HU Yan;WANG Yugui(Key Laboratory of Southwest Land Resources Evaluation and Monitoring of the Ministry of Education,Chengdu,Sichuan 610066;The Faculty of Geography Resources Sciences,Sichuan Normal University,Chengdu,Sichuan 610066)
出处
《绵阳师范学院学报》
2023年第11期97-105,共9页
Journal of Mianyang Teachers＇ College
关键词
碳排放
成渝城市群
Dagum基尼系数
时空异质性
carbon emissions
Chengdu-Chongqing urban agglomeration
Dagum Gini coefficient
Spatial-temporal heterogeneity
