خيارات البحث
النتائج 1 - 10 من 21
The effects of removing cloudwater and lowering ambient O3 on red spruce grown at high elevations in the southern Appalachians.
1993
Thornton F.C. | McDuffie C. Jr. | Pier P.A. | Wilkinson R.C.
Critical levels and loads of atmospheric pollutants for terrestrial and aquatic ecosystems. The emergence of a scientific concept. Application potentials and their limits
1993
Landmann, G. (Institut National de la Recherche Agronomique, Champenoux (France). Centre de Nancy, Microbiologie Biogeochimie et Pathologie des Ecosystemes Forestiers)
Whole-plant growth and leaf formation in ozonated hybrid poplar (Populus x euramericana)
1993
Matyssek, R. | Gunthardt-Goerg, M.S. | Landolt, W. | Keller, T. (Swiss Federal Institute for Forest, Snow, and Landscape Research, Zurcherstr. 111, CH-8903 Birmensdorf ZH (Switzerland))
Conifer aphids in an air-polluted environment. II. Host plant quality
1993
Kainulainen, P. | Satka, H. | Mustaniemi, A. | Holopainen, J.K. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees
1993
Cape, J.N. (Institute of Terrestrial Ecology, Bush Estate, Penicuik, Midlothian, EH26 0QB (United Kingdom))
Glutathione status and glutathione reductase activity in spruce needles of healthy and damaged trees at two mountain sites
1993
Schmieden, U. | Schneider, S. | Wild, A. (Institut fur Allgemeine Botanik, Johannes Gutenberg-Universitat, 55099 Mainz (Germany))
Height growth of northern red oak in relation to site and atmospheric deposition in Pennsylvania
1993
McClenahen, J.R. | Long, R.P. (School of Natural Resources, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster (USA))
The impact of constituent ions of acid mist on assimilation and stomatal conductance of Norway spruce prior and post mid-winter freezing
1993
Eamus, D. | Murray, M.B. (Institute of Terrestrial Ecology, Bush Estate, Penicuik, Midlothian, Scotland (United Kingdom))
Branch growth and leaf gas exchange of Populus tremula exposed to low ozone concentrations throughout two growing seasons
1993
Matyssek, R. | Keller, T. | Koike, T. (Swiss Federal Institute of Forest, Snow and Landscape Research, Zurcherstr. 111, CH-8903 Birmensdorf ZH (Switzerland))
Spatial variability of throughfall fluxes in a spruce forest
1993
Beier, C. | Hansen, K. | Gundersen, P. (Department of Forest Health and Ecosystems, Danish Forest and Landscape Research Institute, Skovbrynet 16, DK-2800 Lyngby (Denmark))