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中国沙漠 ›› 2025, Vol. 45 ›› Issue (3): 222-232.DOI: 10.7522/j.issn.1000-694X.2025.00029

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腾格里沙漠东南缘人工固沙植被生态系统固碳服务供需平衡定量评价

杨丽雯1,2,3(), 李小军2, 杨昊天2, 张志山2, 史卓群1, 秦晓1, 洪丹丹4, 王大勇5()   

  1. 1.山西能源学院 经济系,山西 晋中 030060
    2.中国科学院西北生态环境资源研究院 沙坡头沙漠研究试验站,甘肃 兰州 730000
    3.北京大学 城市与环境学院,北京 100871
    4.上海市地矿工程勘察(集团)有限公司,上海 200436
    5.山西省气候中心,山西 太原 030006
  • 收稿日期:2025-02-11 修回日期:2025-04-24 出版日期:2025-05-20 发布日期:2025-06-30
  • 通讯作者: 王大勇
  • 作者简介:杨丽雯(1978—),女,新疆乌鲁木齐人,博士,副教授,主要研究方向为生态系统服务评估。E-mail: Yanglw@sxie.edu.cn
  • 基金资助:
    宁夏回族自治区重点研发项目(2023BEG02040);山西省基础研究计划项目(202203021211082)

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

摘要:

为更好地评估生态恢复工程的固碳服务效果,本研究定量评价了2015年和2020年沙坡头人工固沙植被生态系统不同演替阶段固碳服务供需平衡。结果表明:(1)人工固沙植被生态系统单位面积固碳服务供给量随固沙年限增加呈现波动上升趋势,在固沙52年以后逐渐趋于稳定。固沙前17年,灌木是固碳服务的主要贡献者,固沙25~60年以土壤固碳服务为主。土壤与灌木固碳服务供给呈现显著负相关,符合回归方程y=9.88-3.21 lnx。草本植物生物量随固沙年限延长而增加,土壤固碳服务供给在较长时间内持续增加。(2)沙坡头区2020年固碳服务需求比2015年增长43.33%,主要受建设用地碳排放量迅速增加的影响,而建设用地碳排放量主要受以煤为主的能源消费结构和以重工业为主产业结构的影响。(3)2015—2020年沙坡头人工固沙植被生态系统单位面积固碳服务供需比远低于100%,且有下降趋势,表明固碳服务供给不能满足需求,且固碳服务供给的增长速度远落后于需求。

关键词: 固碳服务, 人工固沙植被, 供需平衡, 生态恢复, 沙坡头

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

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