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Journal of Desert Research ›› 2025, Vol. 45 ›› Issue (3): 222-232.DOI: 10.7522/j.issn.1000-694X.2025.00029

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Quantitative assessment on the supply-demand balance of carbon sequestration service in artificial sand-binding vegetation ecosystem at the southeastern edge of the Tengger Desert

Liwen Yang1,2,3(), Xiaojun Li2, Haotian Yang2, Zhishan Zhang2, Zhuoqun Shi1, Xiao Qin1, Dandan Hong4, Dayong Wang5()   

  1. 1.Department of Economics,Shanxi Institute of Energy,Jinzhong 030060,Shanxi,China
    2.Shapotou Desert Research and Experiment Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000
    3.College of Urban and Environmental Sciences,Peking University,Beijing 100871,China
    4.Shanghai Geological & Mineral Engineering Exploration (Group) Co. ,Ltd. ,Shanghai 200436,China
    5.Climate Centre of Shanxi Province,Taiyuan 030006,China
  • Received:2025-02-11 Revised:2025-04-24 Online:2025-05-20 Published:2025-06-30
  • Contact: Dayong Wang

Abstract:

To systematically assess the efficacy of ecological restoration initiatives in enhancing carbon sequestration service supply, this study conducted a quantitative analysis of the supply-demand balance of carbon sequestration service across distinct succession stages of artificial sand-binding vegetation ecosystem in the Shapotou region between 2015 and 2020. Key findings include: (1)The total carbon sequestration service supply within the artificial sand-binding vegetation ecosystem exhibited a fluctuating upward trend over time, approaching stabilization after 52 years of vegetation restoration. During the initial 17-year restoration phase, shrub biomass dominated carbon sequestration service supply, whereas soil carbon sequestration became the primary contributor between 25-60 years post-restoration. A significant negative correlation was identified between soil and shrub carbon sequestration supply, which was effectively modeled using a regression equation y=9.88-3.21lnx. Notably, the increasing herbaceous biomass suggests a sustained rise in soil carbon sequestration supply over extended timescales. (2) By 2020, regional carbon sequestration demand surged by 43.33% relative to 2015 level, primarily driven by escalating construction land emissions. This growth was closely linked to the coal-intensive energy structure and heavy industrial development characteristic of the study area. (3) From 2015 to 2020, the per-unit-area supply-demand ratio for carbon sequestration service in Shapotou's artificial sand-binding vegetation ecosystem remained consistently below 1, reflecting a widening gap between supply and demand. The findings highlighted a critical mismatch where supply growth lagged far behind demand escalation. These insights carry profound implications for achieving carbon neutrality in desert ecosystems and maintaining ecological security. Methodologically, this research provides innovative frameworks for evaluating carbon sequestration effectiveness in sandy land restoration projects, advancing both ecological science and evidence-based policy formulation in arid region management.

Key words: carbon sequestration service, artificial sand-binding vegetation, supply-demand balance, ecological restoration, Shapotou

CLC Number: