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| Titel |
The full GHG balance over two crop rotations at an agricultural site near Gebesee, Thuringia, Germany |
| VerfasserIn |
Werner Leo Kutsch, Christian Brümmer, Catharina Don, René Dechow, Roland Fuß, Annette Freibauer, Ernst-Detlef Schulze, Olaf Kolle, Waldemar Ziegler |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250083397
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| Zusammenfassung |
| Gebesee in Thuringia is the eldest cropland eddy covariance (EC) site in Europe. The site has been part of CarboEurope, NitroEurope and IMECC and has been selected to be one of the German Level 1 sites within the European research infrastructure ICOS. Continuous measurements of NEE by EC, NPP by regular harvesting, lateral in- and outputs of carbon and nitrogen as well as climatic parameters have been conducted since 2001. Automated chamber measurements of N2O and CH4 were conducted since 2007. Fluxes of these greenhouse gases (GHG) for the years 2001 – 2006 were calculated based on a Fuzzy Logic model calibrated by means of the chamber measurements.
In this study we present NEE, NBP and full GHG balances of over two rotation periods (2001 – 2004 and 2005 – 2009, respectively) comprising four times winter wheat, two times potatoes and one cropping period of oil seed rape, sugar beet and barley each.
The GHG balance is dominated by moderate losses of soil organic matter (~120 +/- 50 g C m-2 y-1) and by N2O emissions of about 0.17 g N2O-N m-2 y-1 (50 g C-eq m-2 y-1). The on-site emissions of GHG balance about 43 % of the harvested carbon. |
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