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获得最好的碳爆炸为红树林恢复的雄鹿

Jingfan Zhang^1,2, Zhe Lu¹, Jinge Zhou^1,2

¹Xiaoliang Research Station of Tropical Coastal Ecosystems, Key Laboratory of Vegetation and Management of Degraded Ecosystems, the CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.

Nature communications

|February 3, 2025

概括

红树林的丧失大大减少了生态系统服务,造成数十亿美元的损失. 然而,红树林的恢复提供了实质性的经济效益和碳封存,证明了气候变化缓解的高成本效益.

科学领域:

环境经济学环境经济学
沿海生态沿海生态
气候变化缓解缓解气候变化缓解

背景情况:

红树林生态系统提供关键服务,但面临重大损失.
减少碳 (C) 沉积功能和生态系统服务 (ESV) 对全球气候和经济产生影响.
准确评估红树林恢复潜力对于气候融资分配至关重要.

研究的目的:

量化红树林丧失对生态系统服务价值 (ESV) 的经济影响.
评估红树林恢复的经济可行性和碳封存潜力.
为有效的红树林保护和恢复提供气候融资策略的信息.

主要方法:

从1996年到2019年对土地变化及其对红树林生态系统服务价值 (ESV) 的影响进行分析.
在20年的恢复期内预测ESV收益和碳封存潜力.
对红树林恢复项目的总体效益成本比率 (BCR) 的计算.

主要成果:

全球红树林ESV在2019年估计为8940亿美元,其中监管和提供服务占主导地位.
红树林的损失导致1996年至2019年间的ESV净损失为292亿美元.
预计的红树林恢复需要40-521亿美元的投资,产生231-725亿美元的ESV净收益.
恢复可以扣留19.4 Tg C,并通过蓝色碳交易产生686至2.36亿美元.
红树林恢复的全球效益成本比 (BCR) 从6.35到15.0不等,这表明成本效益很高.

结论:

红树林的恢复提供了重要的经济机会,是缓解气候变化的高成本有效策略.
红树林中的蓝碳项目提供了一个可行的途径来封存碳,支持生计,并通过碳交易产生收入.
有效地将气候融资分配给红树林恢复是最大限度地提高生态系统服务和实现气候目标的必要条件.

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