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Two Contribution Paths of Carbon Neutrality: Terrestrial Ecosystem Carbon Sinks and Anthropogenic Carbon Emission Reduction—A Case of Chongqing, China

Author

Listed:
  • Luyi Qiu

    (School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing 100876, China)

  • Kunying Niu

    (School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing 100876, China)

  • Wei He

    (School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing 100876, China)

  • Yaqi Hu

    (Institute of New Structural Economics, Peking University, Beijing 100871, China)

Abstract

Carbon neutrality attracts worldwide attention due to its significance and urgency. Anthropogenic emission reduction and terrestrial ecosystem carbon sinks are the two main paths to achieve the goal of carbon neutrality. However, in current studies, both are usually regarded as independent systems to conduct separate carbon function research. It is necessary to compare their contributions across sectors within the same emission reduction framework. Therefore, the paper takes Chongqing, China as an example and applies the carbon coefficient method to compare terrestrial ecosystem carbon sinks with anthropogenic carbon emissions in the same land structure and carbon sectors. Then, the scenario assumption is adopted to assess their contribution and impact in 2030 and 2060 to achieve carbon neutrality. Several conclusions are drawn: (1) Terrestrial ecosystem carbon sinks offset 3.45% of anthropogenic emissions in 2018, of which forest ecosystems contributed significantly. (2) Construction land played a decisive role in carbon emissions, which are constantly consolidated and deepened. Fossil energy is the main carbon source. (3) All scenarios can reduce emissions. The effect of energy structure transformation is the most prominent, but the benefits of expanding forest area and reducing waste disposal are small.

Suggested Citation

  • Luyi Qiu & Kunying Niu & Wei He & Yaqi Hu, 2023. "Two Contribution Paths of Carbon Neutrality: Terrestrial Ecosystem Carbon Sinks and Anthropogenic Carbon Emission Reduction—A Case of Chongqing, China," Sustainability, MDPI, vol. 15(14), pages 1-17, July.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:11306-:d:1198471
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    References listed on IDEAS

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    2. Jing Wang & Liang Feng & Paul I. Palmer & Yi Liu & Shuangxi Fang & Hartmut Bösch & Christopher W. O’Dell & Xiaoping Tang & Dongxu Yang & Lixin Liu & ChaoZong Xia, 2020. "Publisher Correction: Large Chinese land carbon sink estimated from atmospheric carbon dioxide data," Nature, Nature, vol. 588(7837), pages 19-19, December.
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    4. Shilong Piao & Jingyun Fang & Philippe Ciais & Philippe Peylin & Yao Huang & Stephen Sitch & Tao Wang, 2009. "The carbon balance of terrestrial ecosystems in China," Nature, Nature, vol. 458(7241), pages 1009-1013, April.
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