Analyzing the spatiotemporal heterogeneity of carbon emissions from road transportation in four Chinese urban agglomerations: An empirical case study

IF 6.3 2区 工程技术 Q1 ECONOMICS
Zeyuan Tian , Yulin Zhao , Zhi Dong , Daniel Jian Sun , Zhiyu Dong
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引用次数: 0

Abstract

Road transportation has emerged as a major source of carbon emissions contributing to climate change nowadays. Despite extensive research on carbon emissions from road transportation (CRT), few studies focused on comparative analysis of CRT at both the urban agglomeration and city levels, particularly considering variations in development levels. To address this gap, this paper investigates CRT from 65 cities within the four Chinese urban agglomerations—Lanxi, Guanzhong Plain, Central Plain, and Yangtze River Delta— using a top-down framework based upon mode-specific energy consumption intensity. Spatiotemporal characteristics of (per capita) CRT along with the contributing factors are analyzed in which rapid CRT growth with significant spatiotemporal heterogeneity are revealed to form spatial clusters. Based on the contributing factors analysis, at the urban agglomeration level, key factors influencing road transport emissions in the Yangtze River Delta and Central Plain urban agglomerations show significant differences across different periods, reflecting the complex interactions among multiple driving mechanisms. At the city level, the influence factors driving emissions exhibit nuanced spatiotemporal non-stationarity among cities. Moreover, variations in the impact extents of key factors are demonstrated, revealing the dynamic evolution of carbon emission mechanism in different periods and spatial scales. This study offers valuable guidance for policymakers in formulating differentiated mitigation strategies to support low-carbon transport transitions in diverse urban agglomerations.
中国4个城市群道路交通碳排放时空异质性分析——以实证为例
如今,道路运输已成为导致气候变化的碳排放的主要来源。尽管对道路交通碳排放的研究非常广泛,但很少有研究关注城市群和城市层面的道路交通碳排放的比较分析,特别是考虑到发展水平的差异。为了解决这一差距,本文采用基于模式特定能源消耗强度的自上而下框架,对中国四个城市群(兰西、关中平原、中原和长三角)65个城市的CRT进行了调查。本文分析了中国人均人均居住面积的时空特征及其影响因素,揭示了中国人均居住面积快速增长的时空异质性,并形成了空间集群。基于影响因素分析,在城市群层面,影响长三角和中原城市群道路交通排放的关键因素在不同时期表现出显著差异,反映出多种驱动机制之间复杂的相互作用。在城市层面上,驱动排放的影响因素在城市之间表现出细微的时空非平稳性。分析了关键因子影响程度的变化规律,揭示了不同时期和空间尺度下碳排放机制的动态演化。该研究为决策者制定差异化缓解战略以支持不同城市群的低碳交通转型提供了有价值的指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Transport Policy
Transport Policy Multiple-
CiteScore
12.10
自引率
10.30%
发文量
282
期刊介绍: Transport Policy is an international journal aimed at bridging the gap between theory and practice in transport. Its subject areas reflect the concerns of policymakers in government, industry, voluntary organisations and the public at large, providing independent, original and rigorous analysis to understand how policy decisions have been taken, monitor their effects, and suggest how they may be improved. The journal treats the transport sector comprehensively, and in the context of other sectors including energy, housing, industry and planning. All modes are covered: land, sea and air; road and rail; public and private; motorised and non-motorised; passenger and freight.
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