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Résultats 11-20 de 45
The impact of fertilization and site preparation on natural regeneration of declined forest stands in the Black Forest
1989
Littek, T. (Freiburg Univ. (Germany, F.R.). Waldbau-Inst.)
[Forest damage. Thinning and fertilization of damaged stands of young Norway spruce]
1989
Weber, M. (Muenchen Univ. (Germany, F.R.). Lehrstuhl fuer Waldbau und Forsteinrichtung) | Huber, W.
[The Fichtelgebirge - natural position - forest damage -forest regeneration programme]
1989
Koch, H.
[Promotion and conservation of natural regeneration of European beech in view of the deposition of air pollutants]
1989
Bressem, U. (Hessische Forstliche Versuchsanstalt, Hann.Muenden (Germany, F.R.). Inst. fuer Forstproduktion und Waldschutz)
Regeneration of forests damaged by forest decline
1989
Burschel, P. (Muenchen Univ. (Germany, F.R.). Lehrstuhl fuer Waldbau und Forsteinrichtung) | Binder, F.
[On the securing of forest gene resources as a contribution to the preservation of the forest]
1985
Melchior, G.H. (Bundesforschungsanstalt fuer Forst- und Holzwirtschaft, Hamburg (Germany, F.R.). Inst. fuer Forstgenetik und Forstpflanzenzuechtung) | Muhs, H.-J. | Stephan, B.R.
[High moisture content of soils as important ecological factor on forest openings caused by air pollution effects]
1990
Herynek, J. (Vysoka Skola Zemedelska, Brno (CSFR). Lesnicka Fakulta)
[Studies on the combination effect of sulphur dioxide, nitrogen oxide and ozone of forest trees]
1989
Guderian, R. (Essen Univ. Gesamthochschule (Germany, F.R.). Inst. fuer Angewandte Botanik) | Klumpp, G. | Klumpp, A. | Kueppers, K.
[Structural changes of silver fir and Norway spruce needles following fumigation experiments]
1989
Ruetze, M. (Bundesforschungsanstalt fuer Forst- und Holzwirtschaft, Hamburg (Germany, F.R.). Inst. fuer Holzbiologie und Holzschutz) | Schmitt, U. | Liese, W.
[Effects of gaseous air pollutants and acid precipitation on forest trees: biochemical and physiological effect determination]
1989
Bender, J. (Bundesforschungsanstalt fuer Landwirtschaft, Braunschweig (Germany, F.R.). Inst. fuer Produktions- und Oekotoxikologie) | Jaeger, H.J.
