细化搜索
结果 1-10 的 16
[Chemical soil conditions following the effects of pollutants on the fine root system of our forest trees]
1987
Schuett, P.
[[Forest] diseases caused by microorganisms]
1987
Nienhaus, F.
[Identification of damage and economical evaluation of forests damaged by air pollution]
1987
Brabaender, H.D. | Hildebrand, G.
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.
[The role of the State Institute for Protection against Air Pollution of North Rhine-Westphalia in the clarification of the causes of new types of forest dieback]
1987
Stratmann, H. (Landesanstalt fuer Immissionsschutz des Landes Nordrhein-Westfalen, Essen (Germany, F.R.))
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)
[Present state of knowledge - gained by deposit measurements - on the question of stress on forest ecosystems - caused by air pollutant input in North Rhine-Westphalia]
1987
Gehrmann, J. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung | Recklinghausen (Germany, F.R.))
[Small RNAs [ribonucleic acid] of damaged and healthy forest trees]
1987
Riesner, D. (Duesseldorf Univ. (Germany, F.R.). Inst. fuer Physikalische Biologie) | Koester, S. | Beuther, E. | Loss, P.
[Effects of eco-toxic heavy metals on young stands of European beech]
1987
Kahle, H. (Bielefeld Univ. (Germany, F.R.). Fakultaet fuer Biologie. Abt. Oekologie) | Breckle, S.W.
[Experiments on the vitalization and revival of diseased Norway spruce stands by inoculation of mycorrhizae]
1987
Lelley, J. (Versuchsanstalt fuer Pilzbau, Krefeld (Germany, F.R.)) | Wuestenhoefer, B. | Boeckem, H.
