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The carbon cycle in Mexico: Past, present and future of C stocks and fluxes

Murray-Tortarolo, Guillermo; Friedlingstein, Pierre; Sitch, Stephen A.; Jaramillo, Víctor J.; Murguia-Flores, F.; Anav, Alessandro; Liu, Yi Y.; Arneth, Almut; Arvanitis, A.; Harper, Anna B.; Jain, Atul K.; Kato, E.; Koven, Charles D.; Poulter, Benjamin; Stocker, Benjamin D.; Wiltshire, Andrew J.; Zaehle, Sönke; Zeng, Ning

We modeled the carbon (C) cycle in Mexico with a process-based approach. We used different available products (satellite data, field measurements, models and flux towers) to estimate C stocks and fluxes in the country at three different time frames: present (defined as the period 2000–2005), the past century (1901–2000) and the remainder of this century (2010–2100). Our estimate of the gross primary productivity (GPP) for the country was 2137±1023 TgC yr$^{-1}$ and a total C stock of 34 506±7483 TgC, with 20 347±4622 TgC in vegetation and 14 159±3861 in the soil.
Contrary to other current estimates for recent decades, our results showed that Mexico was a C sink over the period 1990–2009 (+31 TgC yr$^{-1}$) and that C accumulation over the last century amounted to 1210±1040 TgC.We attributed this sink to the CO$_{2}$ fertilization effect on GPP, which led to an increase of 3408±1060 TgC, while both climate and land use reduced the country C stocks by -458±1001 and -1740±878 TgC, respectively. Under different future scenarios, the C sink will likely continue over the 21st century, with decreasing C uptake as the climate forcing beco ... mehr

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.5194/bg-13-223-2016
ISSN: 1726-4170
URN: urn:nbn:de:swb:90-552988
KITopen ID: 1000055298
HGF-Programm 12.02.02; LK 01
Erschienen in Biogeosciences
Band 13
Heft 1
Seiten 223-238
Lizenz CC BY 3.0 DE: Creative Commons Namensnennung 3.0 Deutschland
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