Global dataset of soil organic carbon in tidal marshes

Tania L Maxwell*, André S Rovai*, Maria Fernanda Adame, Janine B Adams, José Álvarez-Rogel, William Austin, Kim Beasy, Francesco Boscutti, Michael Ernst Böttcher, Tjeerd Joris Bouma, Richard H Bulmer, Annette Burden, Shannon A Burke, Saritta Camacho, Doongar R Chaudhary, Gail L Chmura, Margareth Copertino, Grace M Cott, Christopher Craft, John DayCarmen B de los Santos, Lionel Denis, Weixin Ding, Joanna C Ellison, Carolyn J Ewers Lewis, Luise Giani, Maria Gispert, Swanne Gontharet, José A. González-Pérez, M Nazaret González-Alcaraz, Connor Gorham, Anna Elizabeth Graversen, Anthony Grey, Roberta Guerra, Qiang He, James R Holmquist, Alice R Jones, José A Juanes, Brian P Kelleher, Karen E Kohfeld, Dorte Krause-Jensen, Anna Lafratta, Paul S Lavery, Edward A Laws, Carmen Leiva-Dueñas, Pei Sun Loh, Catherine E Lovelock, Carolyn J Lundquist, Peter I Macreadie, Inés Mazarrasa, J Patrick Megonigal, Joao M Neto, Juliana Nogueira, Michael J. Osland, Jordi F. Pagès, Nipuni Perera, Eva-Maria Pfeiffer, Thomas Pollmann, Jacqueline L Raw, María Recio, Ana Carolina Ruiz-Fernández, Sophie K Russell, John M Rybczyk, Marek Sammul, Christian Sanders, Rui Santos, Oscar Serrano, Matthias Siewert, Craig Smeaton, Zhaoliang Song, Carmen Trasar-Cepeda, Robert R Twilley, Marijn Van de Broek, Stefano Vitti, Livia Vittori Antisari, Baptiste Voltz, Christy N Wails, Raymond D Ward, Melissa Ward, Jaxine Wolfe, Renmin Yang, Sebastian Zubrzycki, Emily Landis, Lindsey Smart, Mark Spalding, Thomas A Worthington

*Corresponding author for this work

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Abstract

Tidal marshes store large amounts of organic carbon in their soils. Field data quantifying soil organic carbon (SOC) stocks provide an important resource for researchers, natural resource managers, and policy-makers working towards the protection, restoration, and valuation of these ecosystems. We collated a global dataset of tidal marsh soil organic carbon (MarSOC) from 99 studies that includes location, soil depth, site name, dry bulk density, SOC, and/or soil organic matter (SOM). The MarSOC dataset includes 17,454 data points from 2,329 unique locations, and 29 countries. We generated a general transfer function for the conversion of SOM to SOC. Using this data we estimated a median (± median absolute deviation) value of 79.2±38.1 Mg SOC ha−1 in the top 30cm and 231±134 Mg SOC ha−1 in the top 1m of tidal marsh soils globally. This data can serve as a basis for future work, and may contribute to incorporation of tidal marsh ecosystems into climate change mitigation and adaptation strategies and policies.
Original languageEnglish
Article number797
Number of pages14
JournalScientific Data
Volume10
DOIs
Publication statusPublished - 11 Nov 2023

Keywords

  • Carbon
  • salt marsh
  • saltmarsh
  • wetlands
  • coastal
  • organic carbon
  • Loss on Ignition
  • LOI
  • soil
  • Sediment
  • Global
  • blue carbon

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