Barbier Edward B
Department of Economics and Finance, University of Wyoming, Laramie, WY 82071, United States.
Mar Pollut Bull. 2016 Aug 30;109(2):676-81. doi: 10.1016/j.marpolbul.2016.01.033. Epub 2016 Feb 3.
Concern over the loss of mangrove ecosystems often focuses on their role in protecting coastal communities from storms that damage property and cause deaths and injury. With climate change, mangrove loss may also result in less protection against coastal storms as well as sea-level rise, saline intrusion and erosion. Past valuations of the storm protection benefit of mangroves have relied on the second-best replacement cost method, such as estimating this protective value with the cost of building human-made storm barriers. More reliable methods instead model the production of the protection service of mangroves and estimate its value in terms of reducing the expected damages or deaths avoided by coastal communities. This paper reviews recent methods of valuing the storm protection service of mangroves and their role in protecting coastal areas and communities of tropical developing countries.
对红树林生态系统丧失的担忧往往集中在其保护沿海社区免受风暴侵害的作用上,这些风暴会破坏财产并造成人员伤亡。随着气候变化,红树林的丧失还可能导致对沿海风暴以及海平面上升、海水入侵和侵蚀的抵御能力减弱。过去对红树林风暴防护效益的评估依赖于次优的替代成本法,比如用建造人造风暴屏障的成本来估算这种防护价值。更可靠的方法是对红树林防护服务的产出进行建模,并根据减少沿海社区预期损失或避免的死亡人数来估算其价值。本文综述了近期评估红树林风暴防护服务的方法及其在保护热带发展中国家沿海地区和社区方面的作用。