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Résultats 141-150 de 198
[Effect of pollutants on Mediterranean littoral ecosystems]
1987
Vincente, N. (Faculte des Sciences et Techniques, Marseille (France). Lab. de Biologie Marine)
[Investigations on nutrition state of beech [Fagus sylvatica L.] and spruce [Picea abies Karst.] and nutrient content on fixed sample plots in Switzerland]
1987
Flueckiger, W. (Institut fuer Angewandte Pflanzenphysiologie, Schoenenbuch (Switzerland))
Air pollution and Canadian forest health
1987
Rennie, P.J.
How to influence policy making in the air pollution field: lessons to be learned from implementation research [legal structuring]
1987
Hjern, B. (Umeaa Univ. (Sweden). Statsvetenskapliga Inst.)
Effects of atmospheric pollution on forest ecosystems
1987
Environmental pollution and health hazards in India
1987
Kumar, R. (Ram)
Contributed papers.
Afficher plus [+] Moins [-]Investigations on nematode populations in forest decline affected ecosystems with particular reference to genera with plant parasitic and virus vector characteristics
1987
Sikora, R.A. (Bonn Univ. (Germany, F.R.). Inst. fuer Pflanzenkrankheiten)
Translocation and distribution of 14C-labelled assimilates in 4-year-old Scots pine (Pinus silvestris) and white spruce (Picea abies)
1987
Willenbrink, J. (Koeln Univ. (Germany, F.R.). Botanisches Inst.) | Klein, H. | Schatten, T.
Ribulose-1,5-bisphosphate carboxylase and glutamine synthetase activity levels in mature Norway spruce (Picea abies) as depending on needle age and air pollution induced impairment of the trees
1987
Weidner, M. (Koeln Univ. (Germany, F.R.). Botanisches Inst.) | Engel, B. | Kraus, M.
[Measurements of air pollution at the forest measurement stations of North Rhine-Westphalia]
1987
Pfeffer, H.U. (Landesanstalt fuer Immissionsschutz des Landes Nordrhein-Westfalen (LIS), Essen (Germany, F.R.))
