Tropical cyclones cumulatively control regional carbon fluxes in Everglades mangrove wetlands (Florida, USA)

Autor:	Evelyn E. Gaiser, Luis M. Farfán, Henry O. Briceño, Victor H. Rivera-Monroy, Edward Castañeda-Moya, Xiaochen Zhao, Rafael Travieso
Rok vydání:	2021
Předmět:	0106 biological sciences 010504 meteorology & atmospheric sciences Science Wetland 010603 evolutionary biology 01 natural sciences Article Carbon cycle Dissolved organic carbon 0105 earth and related environmental sciences geography Multidisciplinary geography.geographical_feature_category Ecology Primary production Soil carbon Wetlands ecology Oceanography Cyclone Environmental science Medicine Tropical cyclone Mangrove
Zdroj:	Scientific Reports Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
ISSN:	2045-2322
Popis:	Mangroves are the most blue-carbon rich coastal wetlands contributing to the reduction of atmospheric CO2 through photosynthesis (sequestration) and high soil organic carbon (C) storage. Globally, mangroves are increasingly impacted by human and natural disturbances under climate warming, including pervasive pulsing tropical cyclones. However, there is limited information assessing cyclone’s functional role in regulating wetlands carbon cycling from annual to decadal scales. Here we show how cyclones with a wide range of integrated kinetic energy (IKE) impact C fluxes in the Everglades, a neotropical region with high cyclone landing frequency. Using long-term mangrove Net Primary Productivity (Litterfall, NPPL) data (2001–2018), we estimated cyclone-induced litterfall particulate organic C (litter-POC) export from mangroves to estuarine waters. Our analysis revealed that this lateral litter-POC flux (71–205 g C m−2 year−1)—currently unaccounted in global C budgets—is similar to C burial rates (69–157 g C m−2 year−1) and dissolved inorganic carbon (DIC, 61–229 g C m−2 year−1) export. We proposed a statistical model (PULITER) between IKE-based pulse index and NPPL to determine cyclone’s impact on mangrove role as C sink or source. Including the cyclone’s functional role in regulating mangrove C fluxes is critical to developing local and regional climate change mitigation plans.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5c68095f3e83d077005d94c08adf9d2 https://pubmed.ncbi.nlm.nih.gov/34230502 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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