中国建筑业碳排放时空演变特征分析

Spatial-Temporal Evolution of Carbon Emissions From Construction Industry in China

建筑业碳排放对我国双碳目标实现影响重大,在中国建筑业碳排放测算的基础上,运用泰尔指数、Slope值和探索性空间数据分析方法对我国2006~2017年建筑业碳排放的时空格局演变特征进行研究和分析。研究表明:2006~2017年,我国建筑业碳排放呈现明显的上升趋势,建筑业碳排放量呈现出明显的区域差异性,东南部地区排放量较大,其他区域排放量较低。大部分省份建筑业碳排放量为中速和缓慢增长型,建筑业碳排放的增长速度得到了有效控制。建筑业碳排放的总体差异、区域内差异和区域间差异呈缓慢波浪式上升态势。建筑业碳排放空间集聚程度呈现出增强-减弱-增强的波动变化趋势,集聚程度较低,但局部空间关联性较强。研究结果可为政府等相关部门制定建筑业碳减排管理的差异化政策和措施提供理论依据。

Carbon emissions from the construction industry significantly impact the realization of China’s dual carbon goals.Based on the calculation of carbon emissions from the construction industry in China,Theil index,Slope value and Exploratory Spatial Data Analysis were used to analyze the spatial and temporal pattern evolution characteristics of carbon emissions from the construction industry in China from 2006 to 2017.The results show that:from 2006 to 2017,the total carbon emissions of the construction industry in China showed a continuous growth trend.The carbon emissions of the construction industry in China showed regional differences,with the southeast region having large emissions and other regions having low emissions.The carbon emissions of construction industry at provincial level in China show a medium or slow growth tendency,and the growth rate of carbon emissions of the construction industry is controlled.The overall,intra-regional and inter-regional differences in carbon emissions from the construction industry in China show a upward trend,and the growth trend is slow.The degree of spatial agglomeration of carbon emissions from the construction industry in China is low,and the degree of spatial agglomeration shows a fluctuating trend of strengthening-weakening-strengthening.The local spatial correlation of carbon emissions from the construction industry in China is strong.The results can provide a theoretical basis for the government and other relevant departments to formulate differentiated policies and measures of carbon emission reduction management in the construction industry.