The carbon cycle in Mexico: past, present and future of C stocks and fluxes
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 pas...
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doaj-24c4d9b86d914664a89b6fd67b37a4d32020-11-24T20:53:45ZengCopernicus PublicationsBiogeosciences1726-41701726-41892016-01-0113122323810.5194/bg-13-223-2016The carbon cycle in Mexico: past, present and future of C stocks and fluxesG. Murray-Tortarolo0P. Friedlingstein1S. Sitch2V. J. Jaramillo3F. Murguía-Flores4A. Anav5Y. Liu6A. Arneth7A. Arvanitis8A. Harper9A. Jain10E. Kato11C. Koven12B. Poulter13B. D. Stocker14A. Wiltshire15S. Zaehle16N. Zeng17College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UKCollege of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UKCollege of Life and Environmental Sciences, University of Exeter, Exeter, UKInstituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, MexicoSchool of Geographical Sciences, University of Bristol, Bristol, UKCollege of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UKClimate Change Research Centre, University of New South Wales, Sydney, AustraliaInstitute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, GermanyInstitute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, GermanyCollege of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UKDepartment of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USAGlobal Environment Program, Research & Development Division, The Institute of Applied Energy, Tokyo, JapanEarth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USAInstitute on Ecosystems and the Department of Ecology, Montana State University, Bozeman, Montana, USADepartment of Life Sciences, Imperial College, London, UKMet Office Hadley Centre, Exeter, UKBiogeochemical Intergration Department, Max Planck Institute for Biogeochemistry, Jena, GermanyDepartment of Atmospheric and Oceanic Science and Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland, USAWe 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<sup>−1</sup> and a total C stock of 34 506 ± 7483 TgC, with 20 347 ± 4622 TgC in vegetation and 14 159 ± 3861 in the soil.</p><p class="p">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<sup>−1</sup>) and that C accumulation over the last century amounted to 1210 ± 1040 TgC. We attributed this sink to the CO<sub>2</sub> 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 becomes more extreme. Our work provides valuable insights on relevant driving processes of the C cycle such as the role of drought in drylands (e.g., grasslands and shrublands) and the impact of climate change on the mean residence time of soil C in tropical ecosystems.http://www.biogeosciences.net/13/223/2016/bg-13-223-2016.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
G. Murray-Tortarolo P. Friedlingstein S. Sitch V. J. Jaramillo F. Murguía-Flores A. Anav Y. Liu A. Arneth A. Arvanitis A. Harper A. Jain E. Kato C. Koven B. Poulter B. D. Stocker A. Wiltshire S. Zaehle N. Zeng |
spellingShingle |
G. Murray-Tortarolo P. Friedlingstein S. Sitch V. J. Jaramillo F. Murguía-Flores A. Anav Y. Liu A. Arneth A. Arvanitis A. Harper A. Jain E. Kato C. Koven B. Poulter B. D. Stocker A. Wiltshire S. Zaehle N. Zeng The carbon cycle in Mexico: past, present and future of C stocks and fluxes Biogeosciences |
author_facet |
G. Murray-Tortarolo P. Friedlingstein S. Sitch V. J. Jaramillo F. Murguía-Flores A. Anav Y. Liu A. Arneth A. Arvanitis A. Harper A. Jain E. Kato C. Koven B. Poulter B. D. Stocker A. Wiltshire S. Zaehle N. Zeng |
author_sort |
G. Murray-Tortarolo |
title |
The carbon cycle in Mexico: past, present and future of C stocks and fluxes |
title_short |
The carbon cycle in Mexico: past, present and future of C stocks and fluxes |
title_full |
The carbon cycle in Mexico: past, present and future of C stocks and fluxes |
title_fullStr |
The carbon cycle in Mexico: past, present and future of C stocks and fluxes |
title_full_unstemmed |
The carbon cycle in Mexico: past, present and future of C stocks and fluxes |
title_sort |
carbon cycle in mexico: past, present and future of c stocks and fluxes |
publisher |
Copernicus Publications |
series |
Biogeosciences |
issn |
1726-4170 1726-4189 |
publishDate |
2016-01-01 |
description |
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<sup>−1</sup> and a total C stock of 34 506 ± 7483 TgC,
with 20 347 ± 4622 TgC in vegetation and 14 159 ± 3861 in the
soil.</p><p class="p">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<sup>−1</sup>) and
that C accumulation over the last century amounted to 1210 ± 1040 TgC.
We attributed this sink to the CO<sub>2</sub> 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 becomes more extreme. Our work provides valuable insights on
relevant driving processes of the C cycle such as the role of drought in
drylands (e.g., grasslands and shrublands) and the impact of climate change
on the mean residence time of soil C in tropical ecosystems. |
url |
http://www.biogeosciences.net/13/223/2016/bg-13-223-2016.pdf |
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