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Результаты 101-110 из 266
Bark beetles and air pollution [also incl. Ips typographus, Pityogenes chalcographus]
1989
Christiansen, E. (Norsk Institutt for Skogforskning, Aas (Norway). Inst. for Skogoekologi)
Microbial activity in forest soils in relation to acid/base and carbon/nitrogen status
1989
Persson, T. | Wiren, A. (Swedish University of Agricultural Scieces, Uppsala (Sweden). Dept. of Ecology and Environmental Research)
Porcelain cups as a source of error in soil acidification studies
1989
Raulund-Rasmussen, K. (Royal Veterinary and Agricultural University, Frederiksberg C (Denmark). Chemistry Dep.)
Effects of ozone on plants in relation to other environmental conditions
1989
Mortensen, L.M. (Norges Landbrukshoegskole, Aas (Norway). Inst. for Hagebruk)
Sulphur content of the epiphytic lichen Hypogymnia physodes as an indicator of atmospheric deposition in Finland
1989
Kubin, E. (Finnish Forest Research Institute, Muhos (Finland). Muhos Research Station)
Effect of local air pollution on the sporophore production of mycorrhizal fungi, mycorrhizae and microbial activity in Scots pine forests
1989
Ohtonen, R. | Markkola, A.M. (Oulu University (Finland). Dep. of Botany)
[Studies on effect and optimization of liming measures on vitality, nutrient supply and soil quality of Norway spruce and European beech stands in two sites of the Hochsauerland]
1989
Oldiges, H. (Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie, Schmallenberg-Grafschaft (Germany, F.R.))
Mg dynamics in fertilized acid forest soils: Effects of fertilizer anions
1989
Kaupenjohann, M. (Bayreuth Univ. (Germany, F.R.). Lehrstuhl fuer Bodenkunde und Bodengeographie) | Zech, W.
[The influence of forest fertilization on the fructification of mykorrhiza fungi and its effect to the nitrogen mineralization fungal by fruits on small forest sites]
1989
Mueller, C. (Tuebingen Univ. (Germany, F.R.). Fakultaet fuer Biologie) | Oberwinkler, F.
[Forest damage. Thinning and fertilization of damaged stands of young Norway spruce]
1989
Weber, M. (Muenchen Univ. (Germany, F.R.). Lehrstuhl fuer Waldbau und Forsteinrichtung) | Huber, W.
