基于SDG15.3.1的土地利用变化对生态系统服务价值的影响
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X171

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云南省基础研究计划项目(202201AU070112);云南省哲学社会科学规划项目(ZD202218)


Impact of Land-use Change on the Value of Ecosystem Services Based on SDG 15.3.1
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    摘要:

    [目的] 可持续发展目标15.3.1是表征土地退化的重要指标之一,探析土地利用变化和生态系统服务价值(ESV)对可持续发展目标15.3.1的影响是改进土地退化的关键因素。基于土地利用及碳储量变化对SDG15.3.1指标制定新的评价规则,并对SDG15.3.1完成情况进行评估。[方法] 采用等效因子法计算生态系统服务价值,以定量分析土地利用变化对ESV的影响。[结果] (1)研究区土地利用类型转换频繁,主要表现为高林地、水体和建设用地增加,耕地、草地和灌木林减少,未利用地基本保持不变。(2) ESV在空间上呈中间高、四周低,西部高、东部低的分布格局;2000—2020年总ESV损失7.32×108元。其中,2000—2010年,土地退化区域的ESV损失3.03×109元;2010—2020年,土地退化区域的ESV损失2.28×109元。(3)根据SDG15.3.1评估结果显示,2000—2010年和2010—2020年SDG15.3.1指标分别为5.22%和4.77%,而土地净恢复面积分别为-1.62×105 hm2和-2.4×105 hm2。SDG15.3.1指标的完成情况有所提高,但仍未实现土地退化零增长目标。[结论] 研究结果为高原城市群在实现可持续发展目标15.3.1过程中土地利用变化对生态系统服务价值的影响提供参考。

    Abstract:

    [Objective] Sustainable Development Goal 15.3.1 (SDG 15.3.1) is one of the important indicators to characterize land degradation.Exploring the impact of land use change and ecosystem service values (ESVs) on SDG 15.3.1 is a key factor to improve land degradation. [Methods] Based on land use and carbon stock changes, a new evaluation rule was established for SDG15.3.1 index, and the completion of SDG 15.3.1 was evaluated. The equivalent factor method was used to calculate the value of ecosystem services to quantitatively analyse the impact of land use change on ESV. [Results] (1) The land use type change was frequent in the study area, which mainly showed that high forest land, water body and construction land increased, cultivated land, grassland and shrub decreased, and unused land remained basically unchanged; (2) The spatial distribution pattern of ESV was high in the middle, low arround, high in the west and low in the east; From 2000 to 2020, the total ESV loss was 7.32×108 yuan. From 2000 to 2010, the ESV loss of land degradation area was 3.03×109 yuan. From 2010 to 2020, the ESV loss in land degradation areas was 2.28×109 yuan. (3) According to the evaluation results of SDG15.3.1, the indicators of SDG15.3.1 for 2000—2010 and 2010—2020 are 5.22 percent and 4.77 percent, respectively, while the net land restoration area was -1.62×105 hm2 and -2.4×105 hm2. The SDG15.3.1 target had improved, but the zero land degradation growed target is still not achieved. [Conclusion] The research results provided a reference for the impact of land use change on ecosystem services in the process of achieving SDG 15.3.1 in plateau urban agglomerations.

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张龙江,赵俊三,陈国平,林伊琳,刘俸汝,彭苏芬.基于SDG15.3.1的土地利用变化对生态系统服务价值的影响[J].水土保持学报,2024,38(2):268~277

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  • 收稿日期:2023-09-25
  • 最后修改日期:2023-10-25
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  • 在线发布日期: 2024-05-20
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