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Résultats 181-190 de 219
Histological and histochemical investigations on the nutrient dynamics in forest trees with regard to the "New-type forest decline".5. Further results on the behaviour of calcium and magnesium in various tissues
1992
Fink, S. (Freiburg Univ. (Germany). Inst. fuer Forstbotanik und Baumphysiologie)
Measurement of the dry deposition rates on trees by using the natural radioactivity as a tracer
1992
Schreiber, H. (Hohenheim Univ. (Germany). Inst. fuer Physik) | Jenderek, H.
Seasonal changes in photosynthetic activity of damaged spruces in the Northern Black Forest (Schoellkopf site)
1992
Zimmer-Rinderle, U. (Karlsruhe Univ. (Germany). Botanisches Inst.) | Lichtenthaler, H.K.
Emissions of N2O, NO and NO2 from soils of spruce stands in the Black Forest
1992
Papen, H. (Fraunhofer-Institut fuer Atmosphaerische Umweltforschung, Garmisch-Partenkirchen (Germany)) | Hermann, H. | Doersch, P. | Rennenberg, H.
Uptake and localization of nutritive and potentially toxic minerals in ectomykorrhizas of forest trees
1992
Kottke, I. (Tuebingen Univ. (Germany). Inst. fuer Botanik, Spezielle Botanik-Mykologie) | Oberwinkler, F.
Soil chemical results from the PEF-measuring plot "Schoellkopf"
1992
Wilpert, K. von (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg (Germany)) | Hildebrand, E.E.
The dependence of the success of natural regeneration on upper soil conditions and degree of acidity in declined forest stands of the Black Forest
1992
Littek, T. (Freiburg Univ. (Germany). Waldbau-Institut)
Project ARINUS: 6. Nitrogen turnover and effects of the experimental treatment
1992
Feger, K.H. (Freiburg Univ. (Germany). Inst. fuer Bodenkunde und Waldernaehrungslehre) | Brahmer, G. | Zoettl, H.W.
CO2-gas-exchange and transpiration of open grown Norway spruce during the year in higher elevations of the Southern Black Forest under local air conditions with and without O3 respectively
1992
Abetz, P. (Freiburg Univ. (Germany). Inst. fuer Waldwachstum) | Kuenstle, E. | Wolfart, A.
Gas exchange and metabolite pools of the carbohydrate and energy metabolism in needles of spruce with different decline symptoms (diurnal and annual changes)
1992
Einig, W. (Tuebingen Univ. (Germany). Botanisches Inst. Abt. Physiologische Oekologie der Pflanzen) | Groschupp, C. | Zimmer-Rinderle, U. | Egger, B. | Hampp, R. | Lichtenthaler, H.K.
