Reinhard Well
University of Göttingen
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Publication
Featured researches published by Reinhard Well.
Journal of Environmental Quality | 2009
Carolin von der Heide; Jürgen Böttcher; M. Deurer; Wilhelmus H. M. Duijnisveld; D. Weymann; Reinhard Well
Ground water is considered to be an important source for indirect N2O emissions. We investigated indirect N2O emissions from a shallow aquifer in Germany over a 1-yr period. Because N2O accumulated in considerable amounts in the surface ground water (mean, 52.86 microg N2O-N L(-1)) and corresponding fluxes were high (up to 34 microg N2O-N m(-2) h(-1)), it was hypothesized that significant indirect N2O emissions would occur via the vertical and the lateral emission pathway. Vertical N2O emissions were investigated by measuring N2O concentrations and calculating fluxes from the surface ground water to the unsaturated zone and at the soil surface. Lateral N2O fluxes were investigated by measuring ground water N2O and NO3- concentrations at five multilevel wells and at a waterworks well. Negligible amounts of N2O were emitted vertically into the unsaturated zone; most of it was convectively transported into the deeper autotrophic denitrification zone. Only a ground water level fall and rise triggered the emission of N2O (up to 3 microg N2O-N m(-2) h(-1)) into the unsaturated zone. Ground water-derived N2O was probably reduced during the upward diffusion, and soil surface emissions were governed by topsoil processes. Along the lateral pathway, N2O and NO3- concentrations decreased with increasing depth in the aquifer. Discharging ground water was almost free of N2O and NO3-, and indirect N2O emissions were small.
Biogeosciences | 2008
D. Weymann; Reinhard Well; Heinz Flessa; C. von der Heide; M. Deurer; K. Meyer; C. Konrad; W. Walther
Catena | 2008
M. Deurer; C. von der Heide; Jürgen Böttcher; Wilhelmus H. M. Duijnisveld; D. Weymann; Reinhard Well
Biogeosciences | 2010
D. Weymann; Helmut Geistlinger; Reinhard Well; C. von der Heide; Heinz Flessa
Journal of Hydrology | 2008
C. von der Heide; Jürgen Böttcher; M. Deurer; D. Weymann; Reinhard Well; Wilhelmus H. M. Duijnisveld
European Journal of Soil Science | 2011
Jürgen Böttcher; D. Weymann; Reinhard Well; C. von der Heide; Andreas Schwen; Heinz Flessa; Wilhelmus H. M. Duijnisveld
Nutrient Cycling in Agroecosystems | 2010
C. von der Heide; Jürgen Böttcher; M. Deurer; Wilhelmus H. M. Duijnisveld; D. Weymann; Reinhard Well
Biogeosciences Discussions | 2008
D. Weymann; Reinhard Well; Heinz Flessa; C. von der Heide; M. Deurer; K. Meyer; C. Konrad; W. Walther
Biogeosciences | 2014
W. Eschenbach; Reinhard Well; W. Walther
Geophysical research abstracts | 2013
Lena Rohe; Gesche Braker; Reinhard Well; Anette Giesemann; Traute-Heidi Anderson; N. Wrage-Mönnig; Heinz Flessa