Quantifying and valuing carbon flows and stores in coastal and shelf ecosystems in the UK
Quantifying and valuing carbon flows and stores in coastal and shelf ecosystems in the UK
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DOI：
10.1016/j.ecoser.2018.10.013
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发表时间：
2019-02
影响因子：
7.6
通讯作者：
T. Luisetti;R. Turner;Julian E. Andrews;Timothy D. Jickells;S. Kröger;M. Diesing;L. Paltriguera;Martin T. Johnson;Eleanor R. Parker;Dorothee C.E. Bakker;K. Weston
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文献类型：
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作者：
T. Luisetti;R. Turner;Julian E. Andrews;Timothy D. Jickells;S. Kröger;M. Diesing;L. Paltriguera;Martin T. Johnson;Eleanor R. Parker;Dorothee C.E. Bakker;K. Weston
有证据表明，由于持续的人类活动和气候变化的影响，有可能通过吸收和储存二氧化碳来减少温室气体排放的栖息地正在丧失。陆地栖息地（如热带森林）和沿海栖息地（“蓝碳”）作为碳储存汇的作用已得到公认。近海陆架沉积物也是一种可管理的碳储存，覆盖全球海洋面积的1.9%，但目前尚未受到国际协议的保护，以使其能够得到保护。通过情景分析，我们探讨了人类活动和气候变化对英国海洋栖息地（包括陆架海沉积物）造成的破坏的经济价值。在25年内人类和气候压力增加的情景中，我们估计，与沿海和陆架海沉积物碳储存干扰有关的碳释放造成的损失高达125亿美元。维持沉积碳储存的经济压力，但必须考虑到与粮食安全等其他全球社会福利的权衡。为了在可持续性治理框架内制定有效的激励机制，保护这些宝贵的沿海和海洋生态系统，需要有强有力的证据。
Evidence shows that habitats with potential to mitigate against greenhouse gases emissions, by taking up and storing CO2, are being lost due to the effects of on-going human activities and climate change. The carbon storage by terrestrial habitats (e.g. tropical forests) and the role of coastal habitats (‘Blue Carbon’) as carbon storage sinks is well recognised.Offshore shelf sediments are also a manageable carbon store, covering ∼9% of global marine area, but not currently protected by international agreements to enable their conservation. Through a scenario analysis, we explore the economic value of the damage of human activities and climate change can inflict on UK marine habitats, including shelf sea sediments.In a scenario of increased human and climate pressures over a 25-year period, we estimate damage costs up to US$12.5 billion from carbon release linked to disturbance of coastal and shelf sea sediment carbon stores.It may be possible to manage socio-economic pressure to maintain sedimentary carbon storage, but the trade-offs with other global social welfare benefits such as food security will have to be taken into account. To develop effective incentive mechanisms to preserve these valuable coastal and marine ecosystems within a sustainability governance framework, robust evidence is required.