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Soil carbon storage controlled by interactions between geochemistry and climate

Sebastian Doetterl UGent, Antoine Stevens, Johan Six, Roel Merckx, Kristof Van Oost, Manuel Casanova Pinto, Angélica Casanova-Katny, Cristina Muñoz, Mathieu Boudin, Erick Zagal Venegas, et al. (2015) NATURE GEOSCIENCE. 8(10). p.780-783
abstract
Soils are an important site of carbon storage(1). Climate is generally regarded as one of the primary controls over soil organic carbon(1,2), but there is still uncertainty about the direction and magnitude of carbon responses to climate change. Here we show that geochemistry, too, is an important controlling factor for soil carbon storage. We measured a range of soil and climate variables at 24 sites along a 4,000-km-long north-south transect of natural grassland and shrubland in Chile and the Antarctic Peninsula, which spans a broad range of climatic and geochemical conditions. We find that soils with high carbon content are characterized by substantial adsorption of carbon compounds onto mineral soil and low rates of respiration per unit of soil carbon; and vice versa for soils with low carbon content. Precipitation and temperature were only secondary predictors for carbon storage, respiration, residence time and stabilization mechanisms. Correlations between climatic variables and carbon variables decreased significantly after removing relationships with geochemical predictors. We conclude that the interactions of climatic and geochemical factors control soil organic carbon storage and turnover, and must be considered for robust prediction of current and future soil carbon storage.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
GRADIENT, SURFACES, ORGANIC-MATTER, OXIDATION, SATURATION, TEMPERATURE SENSITIVITY, FEEDBACKS, TURNOVER, STABILIZATION, MECHANISMS
journal title
NATURE GEOSCIENCE
Nat. Geosci.
volume
8
issue
10
pages
780 - 783
Web of Science type
Article
Web of Science id
000363951200017
JCR category
GEOSCIENCES, MULTIDISCIPLINARY
JCR impact factor
12.508 (2015)
JCR rank
1/184 (2015)
JCR quartile
1 (2015)
ISSN
1752-0894
DOI
10.1038/NGEO2516
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8029731
handle
http://hdl.handle.net/1854/LU-8029731
date created
2016-07-07 13:45:25
date last changed
2016-12-19 15:47:12
@article{8029731,
  abstract     = {Soils are an important site of carbon storage(1). Climate is generally regarded as one of the primary controls over soil organic carbon(1,2), but there is still uncertainty about the direction and magnitude of carbon responses to climate change. Here we show that geochemistry, too, is an important controlling factor for soil carbon storage. We measured a range of soil and climate variables at 24 sites along a 4,000-km-long north-south transect of natural grassland and shrubland in Chile and the Antarctic Peninsula, which spans a broad range of climatic and geochemical conditions. We find that soils with high carbon content are characterized by substantial adsorption of carbon compounds onto mineral soil and low rates of respiration per unit of soil carbon; and vice versa for soils with low carbon content. Precipitation and temperature were only secondary predictors for carbon storage, respiration, residence time and stabilization mechanisms. Correlations between climatic variables and carbon variables decreased significantly after removing relationships with geochemical predictors. We conclude that the interactions of climatic and geochemical factors control soil organic carbon storage and turnover, and must be considered for robust prediction of current and future soil carbon storage.},
  author       = {Doetterl, Sebastian and Stevens, Antoine and Six, Johan and Merckx, Roel and Van Oost, Kristof and Casanova Pinto, Manuel and Casanova-Katny, Ang{\'e}lica and Mu{\~n}oz, Cristina and Boudin, Mathieu and Zagal Venegas, Erick and Boeckx, Pascal},
  issn         = {1752-0894},
  journal      = {NATURE GEOSCIENCE},
  keyword      = {GRADIENT,SURFACES,ORGANIC-MATTER,OXIDATION,SATURATION,TEMPERATURE SENSITIVITY,FEEDBACKS,TURNOVER,STABILIZATION,MECHANISMS},
  language     = {eng},
  number       = {10},
  pages        = {780--783},
  title        = {Soil carbon storage controlled by interactions between geochemistry and climate},
  url          = {http://dx.doi.org/10.1038/NGEO2516},
  volume       = {8},
  year         = {2015},
}

Chicago
Doetterl, Sebastian, Antoine Stevens, Johan Six, Roel Merckx, Kristof Van Oost, Manuel Casanova Pinto, Angélica Casanova-Katny, et al. 2015. “Soil Carbon Storage Controlled by Interactions Between Geochemistry and Climate.” Nature Geoscience 8 (10): 780–783.
APA
Doetterl, S., Stevens, A., Six, J., Merckx, R., Van Oost, K., Casanova Pinto, M., Casanova-Katny, A., et al. (2015). Soil carbon storage controlled by interactions between geochemistry and climate. NATURE GEOSCIENCE, 8(10), 780–783.
Vancouver
1.
Doetterl S, Stevens A, Six J, Merckx R, Van Oost K, Casanova Pinto M, et al. Soil carbon storage controlled by interactions between geochemistry and climate. NATURE GEOSCIENCE. 2015;8(10):780–3.
MLA
Doetterl, Sebastian, Antoine Stevens, Johan Six, et al. “Soil Carbon Storage Controlled by Interactions Between Geochemistry and Climate.” NATURE GEOSCIENCE 8.10 (2015): 780–783. Print.