Vulnerability of mineral-associated soil organic carbon to climate across global drylands

Paloma Díaz Martínez (Primer Autor), Fernando T. Maestre, Eduardo Moreno Jiménez, Manuel Delgado Baquerizo, David J. Eldridge, Hugo Saiz, Nicolas Gross, Yoann Le Bagousse Pinguet, Beatriz Gozalo, Victoria Ochoa, Emilio Guirado, Miguel García Gómez, Enrique Valencia, Sergio Asensio, Miguel Berdugo, Jaime Martínez-Valderrama, Betty J. Mendoza, Juan C. García Gil, Claudio Zaccone, Marco PanettieriPablo García-Palacios, Wei Fan, Iria Benavente-Ferraces, Ana Rey, Nico Eisenhauer, Simone Cesarz, Mehdi Abedi, Rodrigo J. Ahumada, Julio M. Alcántara, Fateh Amghar, Valeria Aramayo, Antonio I. Arroyo, Khadijeh Bahalkeh, Farah Ben Salem, Niels Blaum, Bazartseren Boldgiv, Matthew A. Bowker, Donaldo Bran, Cristina Branquinho, Chongfeng Bu, Yonatan Cáceres, Rafaella Canessa, Andrea P. Castillo-Monroy, Ignacio Castro, Patricio Castro Quezada, Roukaya Chibani, Abel A. Conceição, Courtney M. Currier, Anthony Darrouzet-Nardi, Balázs Deák, Christopher R. Dickman, David A. Donoso, Andrew J. Dougill, Jorge Durán, Hamid Ejtehadi, Carlos Espinosa, Alex Fajardo, Mohammad Farzam, Daniela Ferrante, Lauchlan H. Fraser, Juan J. Gaitán, Elizabeth Gusman Montalván, Rosa M. Hernández-Hernández, Andreas von Hessberg, Norbert Hölzel, Elisabeth Huber-Sannwald, Frederic M. Hughes, Ángel Oswaldo Jadán Maza, Katja Geissler, Anke Jentsch, Mengchen Ju, Kudzai F. Kaseke, Liana Kindermann, Jessica E. Koopman, Peter C. Le Roux, Pierre Liancourt, Anja Linstädter, Jushan Liu, Michelle A. Louw, Gillian Maggs-Kölling, Thulani P. Makhalanyane, Oumarou Malam Issa, Eugene Marais, Pierre Margerie, Antonio J. Mazaneda, Mitchel P. McClaran, João Vitor S. Messeder, Juan P. Mora, Gerardo Moreno, Seth M. Munson, Alice Nunes, Gabriel Oliva, Gastón R. Oñatibia, Brooke Osborne, Guadalupe Peter, Yolanda Pueyo, R. Emiliano Quiroga, Sasha C. Reed, Victor M. Reyes, Alexandra Rodríguez, Jan C. Ruppert, Osvaldo Sala, Ayman Salah, Julius Sebei, Michael Sloan, Shijirbaatar Solongo, Ilan Stavi, Colton R.A. Stephens, Alberto L. Teixido, Andrew D. Thomas, Heather L. Throop, Katja Tielbörger, Samantha Travers, James Val, Orsolya Valko, Liesbeth van den Brink, Frederike Velbert, Wanyoike Wamiti, Deli Wang, Lixin Wang, Glenda M. Wardle, Laura Yahdjian, Eli Zaady, Juan M. Zeberio, Yuanming Zhang, Xiaobing Zhou, César Plaza (Último Autor), César Plaza (Autor de Correspondencia)

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

31 Citas (Scopus)

Resumen

Mineral-associated organic carbon (MAOC) constitutes a major fraction of global soil carbon and is assumed less sensitive to climate than particulate organic carbon (POC) due to protection by minerals. Despite its importance for long-term carbon storage, the response of MAOC to changing climates in drylands, which cover more than 40% of the global land area, remains unexplored. Here we assess topsoil organic carbon fractions across global drylands using a standardized field survey in 326 plots from 25 countries and 6 continents. We find that soil biogeochemistry explained the majority of variation in both MAOC and POC. Both carbon fractions decreased with increases in mean annual temperature and reductions in precipitation, with MAOC responding similarly to POC. Therefore, our results suggest that ongoing climate warming and aridification may result in unforeseen carbon losses across global drylands, and that the protective role of minerals may not dampen these effects.
Idioma originalInglés
Páginas (desde-hasta)976-982
Número de páginas7
PublicaciónNature Climate Change
Volumen14
N.º9
DOI
EstadoPublicada - sep. 2024

Palabras clave

  • Global drylands
  • Organic carbon
  • Regiones áridas
  • Biogeoquímica
  • Almacenamiento de carbono
  • Cambio climático

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