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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Cost-effectiveness of dryland forest restoration evaluated by spatial analysis of ecosystem services
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Cost-effectiveness of dryland forest restoration evaluated by spatial analysis of ecosystem services

机译：通过生态系统服务的空间分析评估旱地森林恢复的成本效益

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摘要

Although ecological restoration is widely used to combat environmental degradation, very few studies have evaluated the cost-effectiveness of this approach. We examine the potential impact of forest restoration on the value of multiple ecosystem services across four dryland areas in Latin America, by estimating the net value of ecosystem service benefits under different reforestation scenarios. The values of selected ecosystem services were mapped under each scenario, supported by the use of a spatially explicit model of forest dynamics. We explored the economic potential of a change in land use from livestock grazing to restored native forest using different discount rates and performed a cost-benefit analysis of three restoration scenarios. Results show that passive restoration is cost-effective for all study areas on the basis of the services analyzed, whereas the benefits from active restoration are generally outweighed by the relatively high costs involved. These findings were found to be relatively insensitive to discount rate but were sensitive to the market value of carbon. Substantial variation in values was recorded between study areas, demonstrating that ecosystem service values are strongly context specific. However, spatial analysis enabled localized areas of net benefits to be identified, indicating the value of this approach for identifying the relative costs and benefits of restoration interventions across a landscape.
机译：尽管生态恢复被广泛用于应对环境退化，但是很少有研究评估这种方法的成本效益。通过估算不同造林情景下生态系统服务收益的净值，我们研究了拉丁美洲四个干旱地区森林恢复对多种生态系统服务价值的潜在影响。在每种情况下，通过使用森林动态空间明确模型的支持，对选定的生态系统服务的价值进行了映射。我们探讨了使用不同折现率将土地利用从牲畜放牧转变为恢复的原始森林的经济潜力，并对三种恢复方案进行了成本效益分析。结果表明，根据所分析的服务，被动恢复在所有研究领域均具有成本效益，而主动恢复的收益通常会因所涉及的相对较高的成本而被抵消。发现这些发现对折现率相对不敏感，但对碳的市场价值敏感。研究区域之间记录了价值的重大变化，表明生态系统服务价值强烈地因地制宜。但是，空间分析可以确定净收益的局部区域，从而表明该方法对于确定景观整治措施的相对成本和收益的价值。

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  • 作者

    Jennifer C. Birch; Adrian C. Newton; Claudia Alvarez Aquino; Elena Cantarello; Cristian Echeverria; Thomas Kitzberger; Ignacio Schiappacasse; Natalia Tejedor Garavito;

  • 作者单位

    Centre for Conservation Ecology and Environmental Change, Bournemouth University, Talbot Campus, Poole, Dorset BH12 5BB, United Kingdom;

    Centre for Conservation Ecology and Environmental Change, Bournemouth University, Talbot Campus, Poole, Dorset BH12 5BB, United Kingdom;

    lnstituto de Investigaciones Forestales, Universidad Veracruzana, Apartado Postal 551, CP 91000, Xalapa, Veracruz, Mexico;

    Centre for Conservation Ecology and Environmental Change, Bournemouth University, Talbot Campus, Poole, Dorset BH12 5BB, United Kingdom;

    Facultad de Ciencias Forestales, Universidad de Concepcion, Casilla 160-C, Victoria 631, Concepcion, Chile;

    Laboratorio Ecotono Universidad Nacional del Comahue, Instituto de Investigaciones en Biodiversidad y Medio Ambiente Consejo Nacional de Investigaciones Cientificas y Tecnicas, Quintral 1250, 8400 Bariloche, Argentina;

    Departamento de Economia, Universidad de Concepcion, Casilla 160-C, Victoria 471, Concepcion, Chile;

    Centre for Conservation Ecology and Environmental Change, Bournemouth University, Talbot Campus, Poole, Dorset BH12 5BB, United Kingdom;

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

    biodiversity; conservation; dry forest; sustainable development;

    机译：生物多样性;保护;干旱森林;可持续发展;

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