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Resultados 131-140 de 198
[Ecological effects and silvicultural conception of continuous pollution stress in Northern Federal Republic of Germany]
1987
Otto, H.J. (Niedersaechsisches Ministerium fuer Ernaehrung, Landwirtschaft und Forsten, Hannover (Germany, F.R.))
Seasonal fluctuations of a polychaete community in a small brackish environment (microhabitat)
1987
Lardicci, C. (Pisa Univ. (Italy). Ist. di Biologia Marina) | Castelli, A.
Environmental conditions in Abu-Kir Bay, east of Alexandria, downstream from "El-Tabia" effluent. Impact on the fish associations in the coastal zone
1987
Halim, Y. (University of Alexandria Research Centre (Egypt)) | Saleh, H.H. | Salim, A.
[In situ experimentation as an evaluative criterion of pollution effects: a study of evolutionary mechanisms and repopulation of polluted sediments]
1987
Stora, G. (Centre d'Oceanologie de Marseille-Station Marine d'Endoume, Marseille (France)) | Arnoux, A. | Diana, C.
Evaluating the effects of pollution on natural marine ecosystems: some outstanding problems of biological surveillance techniques
1987
Abel, P.D. (Sunderland Polytechnic (UK). Biology Dept.)
Measures against acidification and air pollution - a Swedish view over a 20-year period
1987
Thunberg, B. (Statens Naturvaardsverk, Solna (Sweden))
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.)
[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.
Overview of JICA projects on BMA water pollution management
1987
Kiyoshi Hasegawa (Japan International Cooperation Agency (Japan))
