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  Measurements necessary for assessing the net ecosystem carbon budget of croplands

Smith, P., Lanigan, G., Kutsch, W. L., Buchmann, N., Eugster, W., Aubinet, M., et al. (2010). Measurements necessary for assessing the net ecosystem carbon budget of croplands. Agriculture, Ecosystems & Environment, 139(3), 302-315. doi:10.1016/j.agee.2010.04.004.

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BGC1452.pdf (Verlagsversion), 406KB
 
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Smith, P., Autor
Lanigan, G., Autor
Kutsch, W. L.1, Autor           
Buchmann, N., Autor
Eugster, W., Autor
Aubinet, M., Autor
Ceschia, E., Autor
Beziat, P., Autor
Yeluripati, J. B., Autor
Osborne, B., Autor
Moors, E. J., Autor
Brut, A., Autor
Wattenbach, M., Autor
Saunders, M., Autor
Jones, M., Autor
Affiliations:
1Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497751              

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Schlagwörter: Carbon Cropland Agriculture Greenhouse gas Eddy covariance Methods soil organic-matter eddy-correlation measurements covariance flux measurements bornhoved lake district closed dynamic chambers long-term experiments land-use change CO2 efflux agricultural soils elevated CO2
 Zusammenfassung: There are a number of methods that can be used to help assess carbon budgets at the site to continental scales. Eddy covariance (EC) networks have been developed over the last decade and have been used to make many advances in our understanding. However, eddy covariance measurements of CO2 and water vapour exchanges quantify the fluxes only on short time scales, but do not assess the impacts of long-term processes that contribute to biogeochemical cycling in croplands, such as harvest or residue removal and other management practices, so many other supplementary measurements are required to attribute different components of the carbon flux. Such methods include isotope studies, chamber flux measurements of C and other greenhouse gases, inventories of above- and below-ground biomass as well as management in- and outputs, book-keeping modelling, process modelling, experimental manipulation and earth observation (e.g. remote sensing). In this review, we summarise the component fluxes that make up the total cropland carbon budget, describe the key fluxes and methods used to estimate them, and examine how they need to be integrated to obtain the net ecosystem carbon budget of European croplands. We describe the uncertainties and difficulties inherent at each stage and how these can be minimised. (C) 2010 Elsevier B.V. All rights reserved.

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Sprache(n): eng - English
 Datum: 2010
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1016/j.agee.2010.04.004
ISI: ://000285675500003
Anderer: BGC1452
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Titel: Agriculture, Ecosystems & Environment
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 139 (3) Artikelnummer: - Start- / Endseite: 302 - 315 Identifikator: CoNE: https://pure.mpg.de/cone/journals/resource/954928561459
ISSN: 0167-8809