Global patterns in mangrove soil carbon stocks and losses

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Atwood, Trisha B
Connolly, Rod M
Almahasheer, Hanan
Carnell, Paul E
Duarte, Carlos M
Lewis, Carolyn J Ewers
Irigoien, Xabier
Kelleway, Jeffrey J
Lavery, Paul S
Macreadie, Peter I
Serrano, Oscar
Sanders, Christian J
Santos, Isaac
Steven, Andrew DL
Lovelock, Catherine E
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2017
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Abstract

Mangrove soils represent a large sink for otherwise rapidly recycled carbon (C). However, widespread deforestation threatens the preservation of this important C stock. It is therefore imperative that global patterns in mangrove soil C stocks and their susceptibility to remineralization are understood. Here, we present patterns in mangrove soil C stocks across hemispheres, latitudes, countries and mangrove community compositions, and estimate potential annual CO2 emissions for countries where mangroves occur. Global potential CO2 emissions from soils as a result of mangrove loss were estimated to be ~7.0 Tg CO2e yr−1. Countries with the highest potential CO2 emissions from soils are Indonesia (3,410 Gg CO2e yr−1) and Malaysia (1,288 Gg CO2e yr−1). The patterns described serve as a baseline by which countries can assess their mangrove soil C stocks and potential emissions from mangrove deforestation.

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Nature Climate Change
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7
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© 2017 Nature Publishing Group. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
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Atmospheric sciences
Physical geography and environmental geoscience
Carbon sequestration science
Soil sciences
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