Knohl, A.; S¢E, A. R. B.; Kutsch, W. L.; Göckede, M.; Buchmann, N.: Representative estimates of soil and ecosystem respiration in an old beech forest. Plant and Soil 302 (1-2), pp. 189 - 202 (2008)
Funk, J. L.; Giardina, C. P.; Knohl, A.; Lerdau, M. T.: Influence of nutrient availability, stand age, and canopy structure on isoprene flux in a Eucalyptus saligna experimental forest. Journal of Geophysical Research: Biogeosciences 111 (2), G02012 (2006)
Göttlicher, S.; Knohl, A.; Wanek, W.; Buchmann, N.; Richter, A.: Short-term changes in carbon isotope composition of soluble carbohydrates and starch: from canopy leaves to the root system. Rapid Communications in Mass Spectrometry 20 (4), pp. 653 - 660 (2006)
Reithmaier, L. M.; Göckede, M.; Markkanen, T.; Knohl, A.; Churkina, G.; Rebmann, C.; Buchmann, N.; Foken, T.: Use of remotely sensed land use classification for a better evaluation of micrometeorological flux measurement sites. Theoretical and Applied Climatology 84 (4), pp. 219 - 233 (2006)
Skomarkova, M. V.; Vaganov, E. A.; Mund, M.; Knohl, A.; Linke, P.; Börner, A.; Schulze, E.-D.: Inter-annual and seasonal variability of radial growth, wood density and carbon isotope ratios in tree rings of beech (Fagus sylvatica) growing in Germany and Italy. Trees 20 (5), pp. 571 - 586 (2006)
Baldocchi, D. D.; Black, T. A.; Curtis, P. S.; Falge, E.; Fuentes, J. D.; Granier, A.; Gu, L.; Knohl, A.; Pilegaard, K.; Schmid, H. P.et al.; Valentini, R.; Wilson, K.; Wofsy, S.; Xu, L.; Yamamoto, S.: Predicting the onset of net carbon uptake by deciduous forests with soil temperature and climate data: a synthesis of FLUXNET data. International Journal of Biometeorology 49 (6), pp. 377 - 387 (2005)
Knohl, A.; Buchmann, N.: Partitioning the net CO2 flux of a deciduous forest into respiration and assimilation using stable carbon isotopes. Global Biogeochemical Cycles 19 (4), p. GB4008 (2005)
Knohl, A.; Werner, R. A.; Brand, W. A.; Buchmann, N.: Short-term variations in δ13C of ecosystem respiration reveals link between assimilation and respiration in a deciduous forest. Oecologia 142 (1), pp. 70 - 82 (2005)
Knohl, A.; Werner, R. A.; Geilmann, H.; Brand, W. A.: Kel-F(TM) discs improve storage time of canopy air samples in 10-mL vials for CO2-δ13C analysis. Rapid Communications in Mass Spectrometry 18 (14), pp. 1663 - 1665 (2004)
Knohl, A.; Schulze, E.-D.; Kolle, O.; Buchmann, N.: Large carbon uptake by an unmanaged 250-year-old deciduous forest in Central Germany. Agricultural and Forest Meteorology 118 (3-4), pp. 151 - 167 (2003)
Extreme precipitation should increase with warmer temperatures. Data from tropical regions show that this correlation is obscured by the cooling effect of clouds. When cloud effects are corrected, the increase in extreme precipitation with rising temperatures becomes apparent.
Land surface temperatures are shaped mostly by the heating by sunlight, but also by evaporation and convective heat transfer in the vertical. A new study determined the role of these two processes by employing a physical limit.
Axel Kleidon discusses contemporary issues relating to the Earth system, thermodynamics, energy conversion, and the water cycle, and explains the current state of scientific knowledge in these areas.