Correlation among the Construction Industry, Energy Consumption and Carbon Emissions in the Yangtze River Economic Belt and Their Spatiotemporal Evolution
Received date: 2024-08-21
Revised date: 2024-11-12
Online published: 2025-05-12
Taking the Yangtze River Economic Belt as the study area and based on the three-variable index data from 2005 to 2020, this study introduces a combined research method based on VAR model and moving time window sHMM (MV-sHMM), and investigates the correlation among the construction industry, energy consumption and carbon emissions, along with their spatiotemporal evolution. The results show that: 1) The development of the construction industry in the Yangtze River Economic Belt has a positive impact on energy consumption and carbon emissions, the impact of energy consumption and carbon emissions on the construction industry transitions from negative to positive before entering a phase of fluctuation, and the effect of energy consumption on carbon emissions shifts from negative to fluctuating. 2) In comparison to the construction industry and energy consumption, carbon emissions exhibit a quicker return to stability. However, in the absence of robust external intervention, the overall recovery rate of the three-variable system is relatively slow. 3) The relationship among the state of the construction industry, energy consumption and carbon emissions demonstrates significant spatial and temporal heterogeneity in the Yangtze River Economic Belt. The decoupling of the construction industry from energy consumption and carbon emissions has gradually expanded from Shanghai and Guizhou to Jiangsu, Zhejiang and Hubei. By 2020, the development of the construction industry in the majority of provincial-level regions in the Yangtze River Economic Belt has decoupled from carbon emissions, with a substantial reduction in the growth rate of energy consumption. Carbon emissions, experienced a spatiotemporal evolution process from point to surface. Finally, it proposes some suggestions: the implementation of dynamic and scientific policies, optimization of the energy structure, and the enhancement of diversified cooperation, aiming to provide a reference for promoting the low-carbon, sustainable and high-quality development of the construction industry.
XIAO Yuxuan , HU Xijun , WEI Baojing . Correlation among the Construction Industry, Energy Consumption and Carbon Emissions in the Yangtze River Economic Belt and Their Spatiotemporal Evolution[J]. Economic geography, 2025 , 45(2) : 47 -57 . DOI: 10.15957/j.cnki.jjdl.2025.02.005
图2 D2lnY、D2lnEC、D2lnCO2的40期方差分解注:图中纵轴为各变量冲击对目标变量总回应的贡献比例。 Fig.2 The 40-period variance decomposition of D2lnY、D2lnEC、D2lnCO2 |
表1 三变量间的方差分解结果Tab1 Results of the variance decomposition among the three factors |
期 | D2lnY | D2lnEC | D2lnCO2 | |||||
---|---|---|---|---|---|---|---|---|
D2lnEC | D2lnCO2 | D2lnY | D2lnCO2 | D2lnY | D2lnEC | |||
1 | 0.000000 | 0.000000 | 11.71751 | 0.000000 | 17.27538 | 81.67563 | ||
2 | 4.366469 | 0.000105 | 36.23844 | 0.378031 | 41.61137 | 55.89716 | ||
3 | 7.536060 | 0.036493 | 44.65233 | 0.987255 | 45.23288 | 50.70885 | ||
4 | 7.876928 | 0.145912 | 43.77029 | 1.496842 | 40.49192 | 54.68084 | ||
5 | 7.883966 | 0.280845 | 42.00522 | 1.695050 | 39.06571 | 56.22838 | ||
6 | 8.485923 | 0.379641 | 42.30835 | 1.690757 | 40.92588 | 54.69888 | ||
7 | 9.167724 | 0.425839 | 43.35460 | 1.649117 | 42.88365 | 52.94746 | ||
8 | 9.527857 | 0.439106 | 44.01569 | 1.627205 | 43.85305 | 52.05631 | ||
9 | 9.623252 | 0.440763 | 44.21742 | 1.621361 | 44.11833 | 51.80941 | ||
10 | 9.625476 | 0.440475 | 44.23399 | 1.620518 | 44.14429 | 51.78523 | ||
均值 | 8.371359 | 0.302954 | 39.65138 | 1.276614 | 39.96025 | 56.24882 |
图3 隐含状态 和 1步转移地区数量变化注:图中纵轴为窗口内观察到的状态转移地区数量,实线代表转移为增长状态 ,虚线代表转移为降低状态 。 Fig.3 Number change of 1-step transfer regions in implicit states and |
图4 隐含状态 1步转移概率变化注:图中纵轴为窗口内观察到的状态转移概率,实线代表转移为增长状态 ,虚线代表转移为降低状态 。 Fig.4 Probability change of 1-step transfer in implicit state |
图6 1步转移 隐藏—观测状态关联地区数量变化Fig.6 Number change of 1-step shift in hidden-observation state-associated regions |
图7 1步转移 隐藏—观测关联状态概率变化Fig.7 Probability change of 1-step transfer in hide-observe associated state |
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