Affiner votre recherche
Résultats 61-70 de 219
60Co accumulation from sediment and planktonic algae by midge larvae (Chironomus luridus)
1992
Baudin, J.P. | Nucho, R. (CEA-Institut de Protection et de Surete Nucleaire, DPEI/SERE, Laboratoire de Radioecologie des Eaux Continentales, CEN Cadarache, 13108 Saint-Paul-Lez-Durance Cedex (France))
Measurements and modelling of cloudwater deposition to moorland and forests
1992
Gallagher, M.W. | Beswick, K. | Choularton, T.W. | Coe, H. | Fowler, D. | Hargreaves, K. (UMIST Department of Pure and Applied Physics, PO Box 88, Manchester M60 1QD (United Kingdom))
Physical and chemical processes in acidic deposition I. Trace gasses and clouds [International Conference on Acidic Deposition]
1992
Fowler, D. | Cape, J.N. (eds.) (Institute of Terrestrial Ecology, Edinburgh Research Station, Scotland (United Kingdom))
Factors affecting trace-metal bioaccumulation in Finnish headwater lakes
1992
Iivonen, P. | Piepponen, S. | Verta, M. (National Board of Waters and the Environment, PO Box 250, 00101 Helsinki (Finland))
Changes in spruce needles after fumigation with 2,4-dinitrophenol, benzaldehyde, furfural, trichloroethane and trichloroacetic acid
1992
Kristen, U. (Hamburg Univ. (Germany). Inst. fuer Allgemeine Botanik) | Lockhausen, J. | Petersen, W. | Schult, B. | Strube, K.
Vitality of mycorrhizas of Norway spruce (Picea abies (L.) Karst.) at different stages of decline in the plot "Postturm", forest district Farchau/Ratzeburg, investigated by fluorescence microscopy
1992
Weber, R. (Tuebingen Univ. (Germany). Botanisches Inst.) | Kottke, I. | Oberwinkler, F.
Effects of short-term expositions of cloned Norway spruce with air pollutants (SO2, NO2, O3) in growth chambers
1992
Lalk, I. (Hamburg Univ. (Germany). Inst. fuer Allgemeine Botanik und Botanischer Garten) | Hartmann, A. | Doerffling, K.
Mycorrhization of Norway spruce in pot cultures
1992
Haug, I. (Tuebingen Univ. (Germany). Botanisches Inst. Spezielle Botanik und Mykologie) | Bauch, H. | Kottke, I.
Seasonal changes in indole acetic acid content of the cambial region of Norway spruce at the research station "Postturm", forest district Farchau/Ratzeburg, in relation to the degree of forest decline (needle loss) and annual diameter
1992
Scheid, P. (Hamburg Univ. (Germany). Inst. fuer Allgemeine Botanik und Botanischer Garten) | Doerffling, K.
Balance of element supply and element fluxes in the ecosystem compartments of crown, stem, root and soil of a diseased spruce-stand at the forest-site "Postturm"
1992
Rademacher, P. (Goettingen Univ. (Germany). Forschungszentrum Waldoekosysteme) | Ullrich, B. | Michaelis, W.