School of Management, Chongqing University of Technology, Chongqing 400054, China.
Rural Revitalization and Regional High-Quality Development Research Center, Chongqing University of Technology, Chongqing 400054, China.
Int J Environ Res Public Health. 2022 Aug 12;19(16):9972. doi: 10.3390/ijerph19169972.
With the proposal of the "carbon peak, carbon neutral" goal, energy efficiency has become one of the key means to achieve energy conservation and emission reduction at this stage. The construction industry, as a cornerstone of China's economy, is characterized by serious overcapacity, energy waste, and pollution. As a result, academic research on its energy efficiency is gaining traction. This paper employed the Super-EBM model considering undesirable output to evaluate the green total-factor energy efficiency of the construction industry (CIGTFEE) in the Yangtze River Economic Belt (YREB) from 2003 to 2018. The spatial-temporal evolution characteristics and spatial heterogeneity of CIGTFEE were analyzed in detail through geospatial analysis. Finally, the driving factors of CIGTFEE were analyzed through a spatial econometric model. The results indicated that, during the sample research period, the CIGTFEE showed a holistic growth trend with volatility. By region, the downstream CIGTFEE grew sharply until 2006 and then remained fairly stable, while the midstream conformed to the "M" trend and the upstream region showed an inverted u-shaped trend; From the perspective of spatial differentiation, the CIGTFEE in YREB shows a significant spatial agglomeration situation, while the spatial agglomeration degree weakened. It existed a ladder-shaped change trend, with the regional average CIGTFEE from high to low levels as follows: Downstream, Midstream, and Upstream, and showed an obvious polarization in the upstream and downstream. From the analysis of the driving factors, CIGTFEE is significantly promoted by economic growth, energy structure, and human capital and suppressed by urbanization level, yet the impact of technological progress and the level of technology and equipment is not significant. In summary, province-specific policies based on spatial and temporal heterogeneity were proposed to improve the CIGTFEE of YREB.
随着“碳达峰、碳中和”目标的提出，能源效率已成为现阶段节能减排的关键手段之一。建筑业作为中国经济的基石，存在严重的产能过剩、能源浪费和污染问题。因此，学术界对其能源效率的研究越来越受到关注。本文采用考虑非期望产出的 Super-EBM 模型，对 2003-2018 年长江经济带（YREB）的建筑业绿色全要素能源效率（CIGTFEE）进行了评价。通过地理空间分析，详细分析了 CIGTFEE 的时空演变特征和空间异质性。最后，通过空间计量模型分析了 CIGTFEE 的驱动因素。结果表明，在样本研究期间，CIGTFEE 整体呈增长趋势，但波动性较大。从区域上看，下游 CIGTFEE 增长迅速，直到 2006 年才趋于稳定，而中游呈“M”型趋势，上游呈倒 U 型趋势；从空间分异来看，YREB 的 CIGTFEE 具有显著的空间集聚特征，且空间集聚程度逐渐减弱，存在明显的阶梯式变化趋势，区域平均 CIGTFEE 由高到低依次为下游、中游和上游，上下游呈现明显的两极分化。从驱动因素分析来看，经济增长、能源结构和人力资本显著促进了 CIGTFEE，而城市化水平则抑制了 CIGTFEE，但技术进步和技术装备水平的影响并不显著。综上所述，提出了基于时空异质性的针对性政策，以提高 YREB 的 CIGTFEE。
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