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The cost-benefit evaluation based on ecosystem services under different ecological restoration scenarios

机译：基于生态系统服务的成本效益评估在不同生态恢复方案下的基于生态系统服务

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摘要

The effects of ecological restoration based on ecosystem services (ES) have attracted more and more attention, while the simulation and cost–benefit analysis of ecological restoration scenarios are not well investigated. In this study, four ecological restoration scenarios were simulated at a typical watershed on the Qinghai-Tibetan Plateau (QTP) based on the land use conversion. Scenario 1 was only grassland restoration, Scenario 2 and 3 were mainly farmland to shrub, and Scenario 4 was mainly grassland restoration with bare land converting to forest and shrub. The ecosystem services value (ESV) and the cost-benefits of these scenarios were quantified and compared in 25 years after the restoration investment. The results showed there were significant differences in the ESV under four scenarios, among which Scenario 4 had the largest ESV and Scenario 1 had the smallest ESV. The spatial distribution of ESV was uneven, and high-value regions were concentrated in the southwest and central regions. There were great variations between original scenario and simulated scenarios, but a little difference between Scenarios 2, 3, and 4. The largest loss of farmland abandonment was regulating service, followed by supporting service, provisioning service, and cultural service. From the perspective of payback period, Scenario 1 was the fastest, and it could obtain net benefits first. From the short- and long-term (6 and 25 years after investment) benefits, Scenarios 1 and 4 had the largest cumulative ESV increase, respectively. The results of this study can provide a basis for the formulation and implementation of ecological policies.
机译：基于生态系统服务的生态恢复对生态恢复的影响吸引了越来越多的关注，而生态恢复情景的仿真和成本效益分析并未得到很好的调查。在这项研究中，基于土地使用转换，在青藏高原（QTP）上的典型流域模拟了四种生态恢复情景。情景1只是草地恢复，情景2和3主要是灌木的农田，方案4主要是草地修复，裸机转变为森林和灌木。经济系统服务价值（ESV）和这些情景的成本优势量化，并在恢复投资25年后比较。结果表明，四种情况下ESV存在显着差异，其中情景4具有最大的ESV和情景1具有最小的ESV。 ESV的空间分布不均匀，高价值区域集中在西南和中央区域。原始情景和模拟情景之间存在很大的变化，但场景2,3和4之间的差别很大。最大的农田遗弃损失是调节服务，然后支持服务，供应服务和文化服务。从投资回收期的角度来看，情景1是最快的，它可以首先获得净利润。从短期和长期（投资后6和25年）的福利，情景1和4分别具有最大的累积ESV增加。本研究的结果可以为生态政策的制定和实施提供基础。

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  • 来源
    《Environmental Monitoring and Assessment》 |2021年第7期|398.1-398.15|共15页
  • 作者

    Mingqi Li; Shiliang Liu; Yixuan Liu; Yongxiu Sun; Fangfang Wang; Shikui Dong; Yi An;

  • 作者单位

    School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China;

    School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China;

    School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China;

    School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China;

    School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China;

    School of Grassland Science Beijing Forestry University Beijing 100083 China;

    School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ecosystem service value; Land use simulation; Grassland restoration; Afforestation; Ecological compensation;

    机译：生态系统服务价值;土地利用仿真;草原恢复;造林;生态补偿;

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