期刊
GEOPHYSICAL RESEARCH LETTERS
卷 49, 期 5, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2021GL097481
关键词
carbon; sediment; disturbance; climate; anthropogenic; trawling
资金
- Scottish Blue Carbon Forum (Scottish Government)
Disturbance of marine sediments affects the remineralization of organic matter and management interventions should focus on protecting inshore and coastal sediments.
Disturbance of marine sediments results in the remineralization of sedimentary organic matter (OM) and impacts upon natural burial processes. Management interventions which restrict or remove activities that cause seabed disturbance may offer effective strategies to protect the most vulnerable of these shelf sea OM stores, offering new opportunities to deliver climate mitigation actions. While the largest quantities of OM are often stored in the expansive offshore regions of continental shelves and might therefore suggest appropriate zones for management interventions to protect vulnerable OM stores, our results highlight that these offshore regions generally contain OM of low reactivity. Conversely, inshore and coastal sediments store significant quantities of highly reactive OM that is at greater risk of remineralization when disturbed. The marked spatial disparities between OM reactivity across shelf sea sedimentary environments highlights the need to focus emergent policy and future management interventions toward the protection of inshore and coastal sediments.
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