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Relationship between foliar injury and changes in antioxidant levels in red and Norway spruce exposed to acidic mists.
1991
Chen Y.M. | Lucas P.W. | Wellburn A.R.
Changes in pigment concentration and composition in Norway spruce induced by long-term exposure to low levels of ozone.
1995
Mikkelsen T.N. | Dodell B. | Lutz C.
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.
Phytol as a possible indicator of ozone stress by Picea abies.
1995
Ekeberg D. | Jablonska A.M. | Ogner G.
Persistent effects of ozone on needle water loss and wettability in Norway spruce.
1990
Barnes J.D. | Eamus D. | Davison A.W. | Ro Poulsen H. | Mortensen L.
Foliar leaching and root uptake of Ca, Mg and K in relation to acid fog effects on Douglas-fir.
1990
Turner D.P. | Tingey D.T.
Nutrient response to diagnostic fertilization of Norway spruce Picea abies (L.) Karst plantations in western Quebec, Canada.
1990
Janicki W. | Jones A.R.C.
Erosion effects of air pollution on needle surfaces.
1986
Karhu M. | Huttunen S.
Effect of increased carbon dioxide and ozone on leaf spot pathogens of birch
2002
Syrjala, L. | Poteri, M. (Finnish Forest Research Institute, Suonenjoki (Finland). Suonenjoki Research Station)
Both CO2 and ozone increased the diseased leaf area of clone V5952 in Exp. 1 in the year 2000. The size of spots increased most under ozone fumigation, and the number of spots under ozone and CO2 + O3 fumigations. In clone K1659 all fumigation treatments decreased or had no effect on the DLA, or the number and size of the leaf spots. Also the number of fallen leaves under fumigation treatments was higher in clone V5952 than in clone K1659. Analysis of the year 2001 monitoring results is currently going on
Afficher plus [+] Moins [-]Nutrient concentrations in the foliage of beech (Fagus sylvatica L.) and Norway spruce (Picea abies L. Karst.) plants of a model ecosystem in response to long-term exposure to atmospheric CO2 enrichment and increased N deposition
2002
Landolt, W. | Egli, P. | Pezzotta, D. | Bucher, J. B. (Swiss Federal Research Institute WSL, Birmensdorf (Switzerland))
The biological effects of both elevated CO2 and N deposition on model ecosystem were investigated in the Birmensdorf open-top chamber facility. Each of the 16 chambers was divided into two compartments with a ground area of 3 msub2 and filled with natural unfertilized forest soils from two sites (one acidic, the other calcareous). Elevated CO2 significantly increased O and Zn concentrations in beech leaves and those of Zn in spruce needles on the calcareous soils. Enhanced N deposition also led to a dilution of nutrients and increased N contents
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