Soil organic carbon pools in the northern circumpolar permafrost region
Charles Tarnocai,Josep G. Canadell,Edward A. G. Schuur,Peter Kuhry,Galina Mazhitova,Sergei Zimov +5 more
Reads0
Chats0
TLDR
In this article, the authors reported a new estimate of the carbon pools in soils of the northern permafrost region, including deeper layers and pools not accounted for in previous analyses.Abstract:
of all soils in the northern permafrost region is approximately 18,782 � 10 3 km 2 ,o r approximately 16% of the global soil area. In the northern permafrost region, organic soils (peatlands) and cryoturbated permafrost-affected mineral soils have the highest mean soil organic carbon contents (32.2–69.6 kg m �2 ). Here we report a new estimate of the carbon pools in soils of the northern permafrost region, including deeper layers and pools not accounted for in previous analyses. Carbon pools were estimated to be 191.29 Pg for the 0–30 cm depth, 495.80 Pg for the 0–100 cm depth, and 1024.00 Pg for the 0–300 cm depth. Our estimate for the first meter of soil alone is about double that reported for this region in previous analyses. Carbon pools in layers deeper than 300 cm were estimated to be 407 Pg in yedoma deposits and 241 Pg in deltaic deposits. In total, the northern permafrost region contains approximately 1672 Pg of organic carbon, of which approximately 1466 Pg, or 88%, occurs in perennially frozen soils and deposits. This 1672 Pg of organic carbon would account for approximately 50% of the estimated global belowground organic carbon pool.read more
Citations
More filters
Journal ArticleDOI
A parameterization of respiration in frozen soils based on substrate availability
Kevin Schaefer,Elchin Jafarov +1 more
TL;DR: In this article, a new frozen biogeochemistry parameterization that separates the simulated carbon into frozen and thawed pools to represent the effects of substrate availability is described. But the parameterization does not account for substrate availability and does not work at the century to millennial timescales required to model the fate of the nearly 1100 Gt of carbon in permafrost regions.
Journal ArticleDOI
Aircraft and tower measurements of CO2 concentration in the planetary boundary layer and the lower free troposphere over southern taiga in West Siberia: Long‐term records from 2002 to 2011
TL;DR: In situ measurements of the vertical distribution of carbon dioxide (CO2) carried out with a light aircraft over a tower site (Berezorechka; 56°08′45″N, 84°19′49″E) in the taiga region of West Siberia from October 2001 to March 2012 document the detailed seasonal and vertical variation of CO2 concentrations during daytime.
Journal ArticleDOI
A Carbon Cycle Science Update Since IPCC AR-4
A. J. Dolman,G. R. van der Werf,M. K. van der Molen,Gerald Ganssen,Jan Willem Erisman,Bart J. Strengers +5 more
TL;DR: The anthropogenic emissions of CO2 due to fossil fuel burning have increased up through 2008 at a rate near to the high end of the IPCC emission scenarios.
Journal ArticleDOI
Greenland climate change: from the past to the future
Valérie Masson-Delmotte,Didier Swingedouw,Amaelle Landais,Marit-Solveig Seidenkrantz,Emilie Gauthier,Vincent Bichet,Charly Massa,Bianca B. Perren,Vincent Jomelli,G. Adalgeirsdottir,Jens Hesselbjerg Christensen,Jette Arneborg,Uma S. Bhatt,Donald A. Walker,Bo Elberling,Fabien Gillet-Chaulet,Catherine Ritz,Hubert Gallée,Michiel R. van den Broeke,Xavier Fettweis,Anne de Vernal,Bo Møllesøe Vinther +21 more
TL;DR: In this article, the authors show that, during the last decade (2000s), atmospheric and sea surface temperatures are reaching levels last encountered millennia ago, when northern high latitude summer insolation was higher due to a different orbital configuration.
Journal ArticleDOI
Information content of incubation experiments for inverse estimation of pools in the Rothamsted carbon model: a Bayesian perspective
TL;DR: In this article, a Bayesian approach using the recently developed DiffeRential Evolution Adaptive Metropolis (DREAM) algorithm was used to infer probability density functions of the various carbon pools at the start of incubation.
References
More filters
Journal ArticleDOI
Temperature sensitivity of soil carbon decomposition and feedbacks to climate change
TL;DR: This work has suggested that several environmental constraints obscure the intrinsic temperature sensitivity of substrate decomposition, causing lower observed ‘apparent’ temperature sensitivity, and these constraints may, themselves, be sensitive to climate.
Journal ArticleDOI
The vertical distribution of soil organic carbon and its relation to climate and vegetation
TL;DR: In this paper, the authors examined the association of soil organic carbon (SOC) content with climate and soil texture at different soil depths, and tested the hypothesis that vegetation type, through patterns of allocation, is a dominant control on the vertical distribution of SOC.
Journal ArticleDOI
Soil taxonomy—a basic system of soil classification for making and interpreting soil surveys
Journal ArticleDOI
Northern Peatlands: Role in the Carbon Cycle and Probable Responses to Climatic Warming.
TL;DR: Satellite-monitoring of the abundance of open water in the peatlands of the West Siberian Plain and the Hudson/James Bay Lowland is suggested as a likely method of detecting early effects of climatic warming upon boreal and subarctic peatland environments.
Journal ArticleDOI
Total carbon and nitrogen in the soils of the world
TL;DR: In this article, a discrepancy of approximately 350 × 1015 g (or Pg) of C in two recent estimates of soil carbon reserves worldwide is evaluated using the geo-referenced database developed for the World Inventory of Soil Emission Potentials (WISE) project.
Related Papers (5)
Vulnerability of Permafrost Carbon to Climate Change: Implications for the Global Carbon Cycle
Edward A. G. Schuur,James G. Bockheim,Josep G. Canadell,Eugénie S. Euskirchen,Christopher B. Field,Sergey Goryachkin,Stefan Hagemann,Peter Kuhry,Peter M. Lafleur,Hanna Lee,Galina Mazhitova,Frederick E. Nelson,Annette Rinke,Vladimir E. Romanovsky,Nikolay I. Shiklomanov,Charles Tarnocai,Sergey Venevsky,Jason G. Vogel,Sergei Zimov +18 more
Climate change and the permafrost carbon feedback
Edward A. G. Schuur,A. D. McGuire,Christina Schädel,Christina Schädel,Guido Grosse,Jennifer W. Harden,Daniel J. Hayes,Gustaf Hugelius,Charles D. Koven,Peter Kuhry,David M. Lawrence,Susan M. Natali,David Olefeldt,Vladimir E. Romanovsky,Kevin Schaefer,Merritt R. Turetsky,Claire C. Treat,Jorien E. Vonk +17 more