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ORIGINAL RESEARCH article

Front. Environ. Sci.
Sec. Land Use Dynamics
Volume 12 - 2024 | doi: 10.3389/fenvs.2024.1481540

Study on the variation of carbon storage in the Chang-Zhu-Tan urban agglomeration in China based on topographic relief

Provisionally accepted
Yi Mi Yi Mi *Sheng Li Sheng Li *Bo Wu Bo Wu *
  • University of South China, Hengyang, China

The final, formatted version of the article will be published soon.

    Regional carbon storage is a significant indicator of ecosystem service functions. Examining the impact of changes in land use on carbon stock in the Chang-Zhu-Tan urban agglomeration under different topographic reliefs is paramount for sustainable land resource utilization and realizing carbon peaking and neutrality goals. This study focuses on the Chang-Zhu-Tan urban agglomeration, using the InVEST model in combination with land use data to explore the distribution pattern of land use change and carbon storage from the perspective of topographic relief. The research results show that the optimal analysis window for topographic reliefs in the study area is 17×17, covering an area of 0.26 km2, with an average topographic relief of 78.58 m. Between 2000 and 2020, Cultivated land and forest land decreased by 592.27 km² and 421.5 km² , respectively, while the built-up land area increased by 982.36 km² . Due to human activities, carbon stock in the study area showed a decreasing trend, with a total reduction of 13.37×106 tons over the past 20 years. The distribution of carbon stock across topographic reliefs mainly exhibits low-value and moderate-value carbon stock concentrations in flat and slightly undulating areas. In contrast, moderately high-value and high-value carbon stock concentrations are concentrated in gently and moderately undulating areas. These research findings provide a scientific foundation for optimizing the spatial pattern of the study area and formulating carbon peak and carbon-neutral policies.

    Keywords: Topographic relief, InVEST model, land-use change, Carbon Storage, Chang-Zhu-Tan urban agglomeration

    Received: 16 Aug 2024; Accepted: 28 Nov 2024.

    Copyright: © 2024 Mi, Li and Wu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Yi Mi, University of South China, Hengyang, China
    Sheng Li, University of South China, Hengyang, China
    Bo Wu, University of South China, Hengyang, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.