Can short-term payments for ecosystem services deliver long-term tree cover change?
Can short-term payments for ecosystem services deliver long-term tree cover change?
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DOI：
10.1016/j.ecoser.2020.101084
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发表时间：
2020-04-01
影响因子：
7.6
通讯作者：
Calle, Alicia
中科院分区：
文献类型：
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作者：
Calle, Alicia
生态系统服务付费（PES）被认为是增加农业景观树木覆盖率的有效策略，但其在付费期后的有效性很少得到评估。我比较了土地覆盖之前和13年后实施的一个短期生态系统服务补偿项目，促进了通过森林牧场系统（SPS）在哥伦比亚的牧场景观。我使用卫星图像来量化土地覆盖变化中农场的变化和农场与景观的差异。平均而言，无树牧场面积减少了7%以上，树木覆盖面积增加了8%以上的森林牧场农场相对于周围的景观。短期付款促进了SPS的采用，导致树木覆盖率大幅增加，十年后在参与农场仍然可见。结果强调了短期生态系统服务补偿作为促进永久采用卫生和植物检疫措施并支持以牧场为主的景观恢复工作的工具的潜力。
Payments for ecosystem services (PES) have been heralded as an effective strategy to increase tree cover in agricultural landscapes, but their efficacy beyond the payment period has rarely been evaluated. I compared land covers before and 13 years after implementation of a short-term PES project that promoted the adoption of silvopastoral systems (SPS) in a cattle ranching landscape in Colombia. I used satellite images to quantify on-farm changes and farm-to-landscape differences in land cover change. On average, treeless pasture area decreased by 7% more and areas with tree cover increased 8% more on silvopastoral farms relative to the surrounding landscape. Short-term payments facilitated the adoption of SPS leading to a significantly greater increase in tree cover, which is still visible on participant farms a decade later. The results highlight the potential of short-term PES as a tool to facilitate the permanent adoption of SPS and to support restoration efforts in pasture-dominated landscapes.