خيارات البحث
النتائج 161 - 170 من 329
Mineral supply of healthy and declining trees of a young spruce stand
1990
Goaster, S. Le (Station de Recherches sur le Sol la Microbiologie et la Nutrition des Arbres Forestiers INRA, Seichamps (France)) | Dambrine, E. | Ranger, J.
Nutritional stress in Picea sitchensis plantations in coastal British Columbia: the effects of Gaultheria shallon and declining site fertility
1990
Messier, C. (British Columbia Univ., Vancouver, B.C. (Canada). Dept. of Forest Sciences) | Kimmins, J.P.
Element composition of leaves and wood of beech (Fagus sylvatica L.) on SO(2)-polluted sites of the NE-Bavarian Mountain
1990
Zech, W. (Bayreuth Univ. (Germany, F.R.). Inst. of Soil Science and Soil Geography) | Schneider, B.U. | Roehle, H.
Terrestrial liming as a tool to mitigate acidification of Woods Lake, NY
1990
Brocksen, R.W. (Living Lakes Inc., Washington, DC (USA)) | Adams, T.B. | Sverdrup, H. | Warfvinge, P.
Effects of ammonia, ammonium sulphate and sulphur dioxide on the frost sensitivity of Scots pine (Pinus sylvestris L.)
1990
Dueck, T.A. (Instituut voor Plantenziektenkundig Onderzoek, Wageningen (Netherlands)) | Dorel, F.G. | Horst, R. ter | Eerden, L.J. van der
Environmental pollution and impacts on soils and forests nutrition in North America
1990
Johnson, D.W. (Biological Sciences Center, Reno, NV (USA). Desert Research Inst.) | Ball, J.T.
Fall exposure of beech saplings (Fagus sylvatica L.) to ozone and simulated acidic mist: effects on gas exchange and leachability
1990
Leonardi, S. (GSF-Muenchen, Neuherberg (Germany, F.R.). Inst. fuer Biochemische Pflanzenpathologie) | Langebartels, C.
Survival rate of tree and shrub seedlings under extreme environmental nitrogen pollution
1990
Kowalkowski, A. (Pedagogical Univ., Kielce (Poland). Inst. of Geography)
Effect of the chemical composition of industrial dusts on forest floor organic matter accumulation
1990
Grodzinski, W. (Jagiellonian Univ., Krakow (Poland). Inst. of Environmental Biology, Dept. of Ecosystem Studies) | Greszta, J. | Laskowski, R. | Maryanski, M. | Rozen, A.
A case study of forest decline in Western Canada and the adjacent United States
1990
Auclair, A.N.D. (Forestry Canada (Canada). Quebec Region and Atmospheric Environment Service) | Martin, H.C. | Walker, S.L.
