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Résultats 191-200 de 329
A new fertilization strategy in declining forests
1990
Evers, F.H. (Forest Research Station of Baden-Wuerttemberg, Freiburg i. Br. (Germany, F.R.)) | Huettl, R.F.
Mineral nutrition, carbohydrate content and cold tolerance of foliage of potted red spruce exposed to ozone and simulated acidic precipitation treatments
1990
Amundson, R.G. (Cornell Univ., Ithaca, NY (USA). Boyce Thompson Inst. for Plant Research) | Kohut, R.J. | Laurence, J.A.
An intensive 1-month investigation of trace metal deposition and throughfall at a mountain spruce forest
1990
Petty, W.H. (Environmental Sciences Div., Oak Ridge, TN (USA). Oak Ridge National Lab.) | Lindberg, S.E.
The influence of acid precipitation and ozone on nitrogen nutrition of young loblolly pine
1990
Wright, L.M. (Auburn Univ., Auburn, AL (USA). School of Forestry) | Lockaby, B.G. | Meldahl, R. | Thornton, F. | Chappelka, A.H.
Initial compensation of acidic deposition in forest ecosystems by different rock meals
1990
Schueler, G. (Forest Research Inst., Trippstadt (Germany, F.R.))
Scattered CaSO(4)-crystallites on needle surfaces after simulated acid rain as an indicator of nutrient leaching
1990
Huttunen, S. (Oulo Univ. (Finland). Dept. of Botany) | Turunen, M. | Reinikainen, J.
Countermeasures to airborne hazardous chemicals.
1990
Holmes J.M. | Byers C.H.
Contamination of ground water: prevention, assessment, restoration.
1990
Barcelona M.J.
[Reduction of forest damage caused by air pollution in Norway spruce (Picea abies (L.) Karst.) stands by means of melioration and the establishment of mixed forests]
1990
Lucke, E. (Institut fuer Forstwissenschaften Eberswalde, Suhl (Germany). Forschungs- und Ueberleitungszentrum) | Melzer, E.W.