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Resultados 1-10 de 13
Effects of acid rain on growth and nutrient concentrations in Scots pine and Norway spruce seedlings grown in a nutrient-rich soil.
1995
Back J. | Huttunen S. | Turunen M. | Lamppu J.
Red spruce and loblolly pine nutritional responses to acidic precipitation and ozone
1995
Edwards, G.S. | Sherman, R.E. | Kelly, J.M. (Tennessee Valley Authority, Forestry Bldg, Norris, Tennessee 37828 (USA))
Influence of air pollution on the foliar nutrition of conifers in Great Britain
1995
Innes, J.L. (Forestry Commission, Alice Holt Lodge, Wrecclesham, Farnham, Surrey, GU10 4LH (United Kingdom))
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))
Trends in needle and soil chemistry of Norway spruce and Scots pine stands in South Sweden 1985-1994
1998
Thelin, G. | Rosengren-Brinck, U. | Nihlgard, B. | Barkman, A. (Forest Ecology, Department of Plant Ecology, Ecology Building, Lund University, S-223 62 Lund (Sweden))
Nitrate leaching in forest ecosystems is related to forest floor C/N ratios
1998
Gundersen, P. | Callesen, I. | Vries, W. de (Danish Forest and Landscape Research Institute, Hoersholm Kongevej 11, DK-2970 Hoersholm (Denmark))
Conifer aphids in an air-polluted environment. I. Aphid density, growth and accumulation of sulphur and nitrogen by Scots pine and Norway spruce seedlings
1993
Holopainen, J.K. | Mustaniemi, A. | Kainulainen, P. | Satka, H. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
Nutrient leaching from conifer needles in relation to foliar apoplast cation exchange capacity
1992
Turner, D.P. | Broekhuizen, H.J. van (Mantech Environmental Technology, Inc., US EPA Environmental Research Laboratory, 200 S.W. 35th, Corvallis, Oregon 97333 (USA))
Soil response to S and N treatments in a northern New England low elevation coniferous forest
1990
Fernandez, I.J. (Maine Univ., Orono, ME (USA). Dept. of Plant, Soil and Environmental Sciences) | Rustad, L.E.
Direct Effects of Air Pollution on Physiology of Forest Trees in the Western United States
1993
Bytnerowicz, A. (USDA Forest Service, Riverside, CA (USA). Pacific Southwest Research Station)
Physiological processes of western trees are effected by ozone at concentration over 80 ppb, depending on the duration of the exposures and environmental conditions. At a single fascicle level short-term ozone exposures can cause reduction, no change or increase of stomatal conductance and net assimilation rate. Two seasons of exposures at twice level ozone concentrations caused a significant reduction of stomatal conductance and pigment concentrations in foliage.
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