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  • Carbon Stocks of Tropical Coastal Wetlands within the Karstic Landscape of the Mexican Caribbean

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    Author(s)
    Adame, Maria Fernanda
    Kauffman, J Boone
    Medina, Israel
    Gamboa, Julieta N
    Torres, Olmo
    Caamal, Juan P
    Reza, Miriam
    Herrera-Silveira, Jorge A
    Griffith University Author(s)
    Adame Vivanco, Fernanda
    Year published
    2013
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    Abstract
    Coastal wetlands can have exceptionally large carbon (C) stocks and their protection and restoration would constitute an effective mitigation strategy to climate change. Inclusion of coastal ecosystems in mitigation strategies requires quantification of carbon stocks in order to calculate emissions or sequestration through time. In this study, we quantified the ecosystem C stocks of coastal wetlands of the Sian Ka'an Biosphere Reserve (SKBR) in the Yucatan Peninsula, Mexico. We stratified the SKBR into different vegetation types (tall, medium and dwarf mangroves, and marshes), and examined relationships of environmental ...
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    Coastal wetlands can have exceptionally large carbon (C) stocks and their protection and restoration would constitute an effective mitigation strategy to climate change. Inclusion of coastal ecosystems in mitigation strategies requires quantification of carbon stocks in order to calculate emissions or sequestration through time. In this study, we quantified the ecosystem C stocks of coastal wetlands of the Sian Ka'an Biosphere Reserve (SKBR) in the Yucatan Peninsula, Mexico. We stratified the SKBR into different vegetation types (tall, medium and dwarf mangroves, and marshes), and examined relationships of environmental variables with C stocks. At nine sites within SKBR, we quantified ecosystem C stocks through measurement of above and belowground biomass, downed wood, and soil C. Additionally, we measured nitrogen (N) and phosphorus (P) from the soil and interstitial salinity. Tall mangroves had the highest C stocks (987 ᠳ38 Mg ha-1) followed by medium mangroves (623 ᠴ1 Mg ha-1), dwarf mangroves (381 ᠵ2 Mg ha-1) and marshes (177 ᠷ3 Mg ha-1). At all sites, soil C comprised the majority of the ecosystem C stocks (78-99%). Highest C stocks were measured in soils that were relatively low in salinity, high in P and low in N:P, suggesting that P limits C sequestration and accumulation potential. In this karstic area, coastal wetlands, especially mangroves, are important C stocks. At the landscape scale, the coastal wetlands of Sian Ka'an covering 豷2,176 ha may store 43.2 to 58.0 million Mg of C.
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    Journal Title
    PloS One
    Volume
    8
    Issue
    2
    DOI
    https://doi.org/10.1371/journal.pone.0056569
    Copyright Statement
    © 2013 Adame et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License CCAL. (http://www.plos.org/journals/license.html)
    Subject
    Ecosystem function
    Publication URI
    http://hdl.handle.net/10072/54052
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