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  The European land and inland water CO2, CO, CH4 and N2O balance between 2001 and 2005

Luyssaert, S., Abril, G., Andres, R., Bastviken, D., Bellassen, V., Bergamaschi, P., et al. (2012). The European land and inland water CO2, CO, CH4 and N2O balance between 2001 and 2005. Biogeosciences, 9(8), 3357-3380. doi:10.5194/bg-9-3357-2012.

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Luyssaert, S., Author
Abril, G., Author
Andres, R., Author
Bastviken, D., Author
Bellassen, V., Author
Bergamaschi, P., Author
Bousquet, P., Author
Chevallier, F., Author
Ciais, P., Author
Corazza, M., Author
Dechow, R., Author
Erb, K. H., Author
Etiope, G., Author
Fortems-Cheiney, A., Author
Grassi, G., Author
Hartmann, J., Author
Jung, M.1, Author           
Lathière, J., Author
Lohila, A., Author
Mayorga, E., Author
Moosdorf, N., AuthorNjakou, D. S., AuthorOtto, J., AuthorPapale, D., AuthorPeters, W., AuthorPeylin, P., AuthorRaymond, P., AuthorRödenbeck, C.2, Author           Saarnio, S., AuthorSchulze, E. D.3, Author           Szopa, S., AuthorThompson, R., AuthorVerkerk, P. J., AuthorVuichard, N., AuthorWang, R., AuthorWattenbach, M., AuthorZaehle, S.4, Author            more..
Affiliations:
1Research Group Biogeochemical Model-data Integration, Dr. M. Reichstein, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497760              
2Inverse Data-driven Estimation, Dr. C. Rödenbeck, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497785              
3Emeritus Group, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497756              
4Terrestrial Biosphere Modelling & Data assimilation, Dr. S. Zähle, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497787              

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 Abstract: Globally, terrestrial ecosystems have absorbed about 30% of anthropogenic greenhouse gas emissions over the period 2000–2007 and inter-hemispheric gradients indicate that a significant fraction of terrestrial carbon sequestration must be north of the Equator. We present a compilation of the CO2, CO, CH4 and N2O balances of Europe following a dual constraint approach in which (1) a landbased balance derived mainly from ecosystem carbon inventories and (2) a land-based balance derived from flux measurements are compared to (3) the atmospheric data-based balance derived from inversions constrained by measurements of atmospheric GHG (greenhouse gas) concentrations. Good agreement between the GHG balances based on fluxes (1294±545 Tg C in CO2-eq yr−1), inventories (1299±200 Tg C in CO2-eq yr−1) and inversions (1210±405 Tg C in CO2-eq yr−1) increases our confidence that the processes underlying the European GHG budget are well understood and reasonably sampled. However, the uncertainty remains large and largely lacks formal estimates. Given that European net land to atmosphere exchanges are determined by a few dominant fluxes, the uncertainty of these key components needs to be formally estimated before efforts could be made to reduce the overall uncertainty. The net land-to-atmosphere flux is a net source for CO2, CO, CH4 and N2O, because the anthropogenic emissions by far exceed the biogenic sink strength. The dual-constraint approach confirmed that the European biogenic sink removes as much as 205±72 Tg C yr−1 from fossil fuel burning from the atmosphere. However, This C is being sequestered in both terrestrial and inland aquatic ecosystems. If the C-cost for ecosystem management is taken into account, the net uptake of ecosystems is estimated to decrease by 45% but still indicates substantial C-sequestration. However, when the balance is extended from CO2 towards the main GHGs, C-uptake by terrestrial and aquatic ecosystems is offset by emissions of non-CO2 GHGs. As such, the European ecosystems are unlikely to contribute to mitigating the effects of climate change.

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 Dates: 2012
 Publication Status: Issued
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.5194/bg-9-3357-2012
Other: BGC1688
PII: 574
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Title: Biogeosciences
  Other : Biogeosciences
Source Genre: Journal
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Publ. Info: Katlenburg-Lindau, Germany : Copernicus GmbH on behalf of the European Geosciences Union
Pages: - Volume / Issue: 9 (8) Sequence Number: - Start / End Page: 3357 - 3380 Identifier: ISSN: 1726-4170
CoNE: https://pure.mpg.de/cone/journals/resource/111087929276006