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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.
Some data about the global pollution (fluorine pollution particularly) in Annaba area (Algeria)
1993
Semadi, A. (Universite de Annaba (Algerie). Institut des sciences de la Nature)
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))
Physiological effects of ozone on cultivars of watermelon (Citrullus lanatus) and muskmelon (Cucumis melo) widely grown in Spain
1993
Fernandez-Bayon, J.M. | Barnes, J.D. | Ollerenshaw, J.H. | Davison, A.W. (Department of Agricultural and Environmental Science, Faculty of Agriculture and Biological Sciences, Ridley Building, University of Newcastle, Newcastle upon Tyne NE1 7RU (United Kingdom))
Investigations on the photosynthetic system of spruce affected by forest decline and ozone fumigation in closed chambers
1993
Ruth, B. | Weisel, B. (GSF-Forschungszentrum fur Umwelt und Gesundheit, Ingolstadter Landstr. 1, W-8042 Neuherberg (Germany))
No general effect of ozone on foliar nutrient concentrations in mature scions of grafted Picea abies trees
1993
Ogner, G. (The Norwegian Forest Research Institute, Hogskoleveien 12, N-1432, As (Norway))
Conclusions of coordinated research into the yellowing of spruce at higher elevations of the Black Forst - research site Schoellkopf (Freudenstadt)
1993
Siefermann-Harms, D. (Kernforschungszentrum Karlsruhe (Germany). Inst. fuer Toxikologie) | Bourgeois, P. | Baumann, K. | Baumbach, G. | Buschmann, C. | Einig, W. | Fink, S. | Franke, F. | Hampp, R. | Hildebrand, E.E. | Hochstein, E. | Jaeger, H.J. | Konnert, M. | Kottke, J. | Lichtenthaler, H.K. | Schmidt, W. | Manderscheid, R. | Schneckenburger, H. | Seemann, D. | Spiecker, H. | Urfer, W. | Wild, A. | Wilpert, K. von | Zimmer-Rinderle, U.
Direct and Indirect effects and the Long-term Risks of Air Pollution on Forest Ecosystems:
1993
Skelly, J.M. (Pennsylvania State University, University Park (USA))
Tropospheric ozone is the most important single air pollutant of importance to forests in eastern United States. Both broadleaf and needled trees may suffer premature foliar senescence following even low ozone exposure years. Genetic sensitivity within species is likewise prevalent.
Afficher plus [+] Moins [-]Direct Effects of Air Pollution on Forest Ecosystems of Western North America
1993
Peterson, D.L. (University of Washington, Seattle (USA))
Visible chlorotic injury and reduced foliar biomass are found in Pinus ponderosa and P. jefreyi in the mountains of southern California and the west slope of Sierra Nevada. Reduced tree growth and accelerated rates of forest succession has been documented in this area, with ozone resistant, shade tolerant species replacing P. ponderosa. There may also be some interactions among ozone, drought stress, insects and fungal pathogens.
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