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Résultats 181-190 de 219
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.
Air pollution control in Switzerland. Actual problems, expectations and demands on research
1992
Boehlen, B. (Bundesamt fuer Umwelt, Wald und Landschaft (BUWAL), Berne (Switzerland)) | Leutert, G.
Experiment with exclusion of gaseous pollutants on spruce trees at Edelmannshof
1992
Evers, F.H. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg (Germany)) | Hoyer, V. | Schnepf, M. | Seufert, G.
Correlation between shed/discoloration and the mycoflora of Norway spruce needles
1992
Seemann, D. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg (Germany))
Physiological and cytomorphological investigations of undamaged and damaged spruce trees in the Northern Black Forest
1992
Wild, A. (Mainz Univ. (Germany). Inst. fuer Allgemeine Botanik) | Tietz-Siemer, S.
Response of soil ciliates to fertilization in Black Forest spruce stands
1992
Lehle, E. (Ulm Univ. (Germany). Abt. Oekologie und Morphologie der Tiere) | Jans, W. | Funke, W.
Pollutant emissions of commercial and industrial wood furnaces: Registration of the state of engineering and possibilities to reduce emissions
1992
Baumbach, G. (Stuttgart Univ. (Germany). Institut fuer Verfahrenstechnik und Dampfkesselwesen (IVD). Abt. Reinhaltung der Luft) | Angerer, M.
