Publication Date:
2003-05-24
Description:
Most inverse atmospheric models report considerable uptake of carbon dioxide in Europe's terrestrial biosphere. In contrast, carbon stocks in terrestrial ecosystems increase at a much smaller rate, with carbon gains in forests and grassland soils almost being offset by carbon losses from cropland and peat soils. Accounting for non-carbon dioxide carbon transfers that are not detected by the atmospheric models and for carbon dioxide fluxes bypassing the ecosystem carbon stocks considerably reduces the gap between the small carbon-stock changes and the larger carbon dioxide uptake estimated by atmospheric models. The remaining difference could be because of missing components in the stock-change approach, as well as the large uncertainty in both methods. With the use of the corrected atmosphere- and land-based estimates as a dual constraint, we estimate a net carbon sink between 135 and 205 teragrams per year in Europe's terrestrial biosphere, the equivalent of 7 to 12% of the 1995 anthropogenic carbon emissions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janssens, Ivan A -- Freibauer, Annette -- Ciais, Philippe -- Smith, Pete -- Nabuurs, Gert-Jan -- Folberth, Gerd -- Schlamadinger, Bernhard -- Hutjes, Ronald W A -- Ceulemans, Reinhart -- Schulze, E-Detlef -- Valentini, Riccardo -- Dolman, A Johannes -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1538-42. Epub 2003 May 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Universiteit Antwerpen, B-2160 Antwerpen, Belgium. ijanssen@uia.ua.ac.be〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12764201" target="_blank"〉PubMed〈/a〉
Keywords:
Agriculture
;
*Atmosphere
;
Biomass
;
Carbon/analysis/metabolism
;
*Carbon Dioxide/metabolism
;
Climate
;
Crops, Agricultural
;
*Ecosystem
;
Europe
;
Soil
;
*Trees/metabolism
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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