The global costs and benefits of expanding Marine Protected Areas
The global costs and benefits of expanding Marine Protected Areas
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DOI：
10.1016/j.marpol.2020.103953
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发表时间：
2020-06-01
期刊：
影响因子：
3.8
通讯作者：
van der Lelij, Jorge Amrit Cado
中科院分区：
文献类型：
--
作者：
Brander, Luke M.;van Beukering, Pieter;van der Lelij, Jorge Amrit Cado
海洋生态系统及其提供的服务对人类福祉作出了巨大贡献，但在世界各地的许多地区，海洋生态系统正在退化。海洋保护区（MPAs）的扩大被认为是解决这一问题的一种潜在方法，但其经济可行性几乎没有研究。我们对海洋保护区全球扩张的六种情景的成本和收益进行了经济评估。该分析是在高空间分辨率下进行的，使估算的成本和效益能够反映每个MPA和海洋生态系统的生态和经济特征和背景。结果表明，根据保护区扩展的位置和范围，扩大海洋保护区的全球效益是其成本的1.4 ~ 2.7倍。将保护目标锁定在生物多样性高的原始地区，比专注于生物多样性低的地区或受到高度人类影响的地区产生更高的净回报。
Marine ecosystems and the services they provide contribute greatly to human well-being but are becoming degraded in many areas around the world. The expansion of Marine Protected Areas (MPAs) has been advanced as a potential solution to this problem but their economic feasibility has hardly been studied. We conduct an economic assessment of the costs and benefits of six scenarios for the global expansion of MPAs. The analysis is conducted at a high spatial resolution, allowing the estimated costs and benefits to reflect the ecological and economic characteristics and context of each MPA and marine ecosystem. The results show that the global benefits of expanding MPAs exceed their costs by a factor 1.4-2.7 depending on the location and extent of MPA expansion. Targeting protection towards pristine areas with high biodiversity yields higher net returns than focusing on areas with low biodiversity or areas that have experienced high human impact.