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Resultados 1-10 de 17
[Studies on effect and optimization of liming measures on vitality, nutrient supply and soil quality of Norway spruce and European beech stands in two sites of the Hochsauerland]
1989
Oldiges, H. (Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie, Schmallenberg-Grafschaft (Germany, F.R.))
[Results of studies conducted in the forest damage areas of North Rhein-Westphalia]
1986
Radermacher, L.
[Open-top-chambers - field studies in the Egge mountains]
1986
Krause, G.H.M.
[The role of the State Institute for Ecology, Landscape Development and Forestry Planning of North Rhine-Westphalia in the clarification of the causes of new types of forest dieback]
1987
Schmidt, A. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung des Landes Nordrhein-Westfalen, Recklinghausen (Germany, F.R.))
[The research topic of North Rhine-Westphalia on "air pollution and forest damage". - Research plan for the research programme]
1987
Koeth, I. | Prinz, B.
[On the effect of ozone and "acid fog" on the leaching of nutrients from Norway spruce]
1988
Krause, G.H.M.
[Measurement and experiment station in the forest (MEXFO).-Estimate of the substance input into a Norway spruce stand by means of the precipitation measurements of the year 1986]
1988
Prinz, B. | Specovius, J. | Schwela, D. | Thiele, V. | Metzger, F.
[Measurement and experiment station in the forest (MEXFO) -First results of the analyses of precipitation and soil water samples]
1987
Thiele, V. | Specovius, J. | Metzger, F. | Prinz, B.
Heavy metal pollution and state of health of forest trees
1990
Trueby, P. (Freiburg Univ. (Germany, F.R.). Inst. fuer Bodenkunde) | Zoettl, H.W.
[Anthrogogenic air pollutants as stress factors of terrestric ecosystems and ways to reduce their damaging effects. Sub programme: effects of lower influences of gaseous pollutants on Norway spruce clones studied in open-top-chambers and in the field]
1990
Debus, R. | Euteneuer-Macher, T.
