地理科学进展 ›› 2020, Vol. 39 ›› Issue (9): 1425-1435.doi: 10.18306/dlkxjz.2020.09.001

• 研究论文 •    下一篇

中国化石能源燃烧碳排放强度非均衡性及其演变的驱动力分析

姜宛贝1,2(), 刘卫东1,2,*(), 刘志高1,2, 韩梦瑶1,2   

  1. 1.中国科学院地理科学与资源研究所,北京100101
    2.中国科学院区域可持续发展分析与模拟重点实验室,北京100101
  • 收稿日期:2019-07-16 修回日期:2020-02-20 出版日期:2020-09-28 发布日期:2020-11-28
  • 通讯作者: 刘卫东
  • 作者简介:姜宛贝(1989— ),女,四川绵阳人,博士,主要研究方向为经济地理与区域发展。E-mail: jiangyb@igsnrr.ac.cn
  • 基金资助:
    国家重点研发计划项目(2016YFA0602804);中国博士后科学基金资助项目(2019M650822)

Inequality and driving forces of energy-related CO2 emissions intensity in China

JIANG Wanbei1,2(), LIU Weidong1,2,*(), LIU Zhigao1,2, HAN Mengyao1,2   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. Key Laboratory of Regional Sustainable Development Modeling, CAS, Beijing 100101, China
  • Received:2019-07-16 Revised:2020-02-20 Online:2020-09-28 Published:2020-11-28
  • Contact: LIU Weidong
  • Supported by:
    National Key Research and Development Program of China(2016YFA0602804);China Postdoctoral Science Foundation Funded Project(2019M650822)

摘要:

探析中国碳排放强度非均衡性及其演变的驱动力可以为中国制定科学合理、公平高效的区域减排方案提供科学依据。论文基于Theil指数,测算了中国2005—2015年省级尺度化石能源燃烧碳排放强度的非均衡程度;从地理区域、经济部门、能源种类和影响因素等视角解析了碳排放强度非均衡性及其变化的驱动力。研究结果表明,2005—2015年,中国碳排放强度总体上逐年降低,但其在省级尺度上的非均衡性不断增强。从地理区域来看,中国碳排放强度的非均衡性主要来源于东北、东、中、西4大区域内部,且东部和西部地区内部不断扩大的碳强度差异日益成为中国碳排放强度非均衡性增强的重要原因。工业和煤炭分别是碳排放强度非均衡的主要经济部门来源和能源种类来源,也是加剧碳排放强度非均衡性的关键动力。就影响因素而言,各省区技术水平的差距主导了碳排放强度的省际差异及其增长。研究结果可以为中国区域减排方案的制定提供科学依据。

关键词: 碳排放强度, 非均衡性, Theil指数, 驱动力, 中国

Abstract:

Research on the driving forces of the change of CO2 emissions intensity inequality in China could provide a scientific basis for formulating sound, fair, and efficient regional carbon emission abatement strategies. This study adopted the Theil index to measure the inequality in energy-related CO2 emissions intensity in China during 2005-2015, and conducted source decomposition focusing on geographical regions, economic sectors, energy types, and explanatory factor decomposition of the inequality. The results show that China's CO2 emissions intensity gradually decreased from 2005 to 2015, but the provincial gap continued to expand. From a regional perspective, the inequality in CO2 emissions intensity is mainly found within China's northeastern, eastern, central, and western regions. Besides, the ever-expanding internal differences of CO2 emissions intensity within the eastern and the western regions increasingly became the main driver of the inequality enhancement. The industrial sector and coal were respectively the major sources of CO2 emissions intensity inequality in terms of economic sectors and energy sources, which were also the key drivers of the intensity inequality exacerbation. With regard to the determinants, the provincial differences in CO2 emissions intensity were mainly dominated by the technological development level, followed by the industrial structure and energy structure. Among them, the widening provincial differences in technology level and energy structure enhanced the inequality in CO2 emissions intensity, and the contribution of technology level was much larger than that of energy structure. The narrowing disparity among provinces in the industrial structure, however, promoted the reduction of the provincial CO2 emissions intensity inequality in China. The research results can provide a scientific basis for the formulation of China's regional emission reduction strategy.

Key words: CO2 emissions intensity, inequality, Theil index, influencing factors, China