Refinar búsqueda
Resultados 1-10 de 13
Acidic deposition: what is fact, what is speculation, what is needed?
1989
Foster N.W.
Ectomycorrhizal associations in Norway spruce stands influenced by long lasting air pollution (Silesian Beskid Mountains, Poland)
2002
Rokicka-Kieliszewska, B. (Polish Academy of Sciences, Kornik (Poland). Institue of Dendrology) | Rudawska, M. | Staszewski, T. | Kurcynska, E. | Karlinski, L.
Norway spurce (Picea abies L.) is the dominating tree species in the Silesian Beskid Mountains. The mountain forests are under severe climatic conditions, such as low temperatures, short growing season, strong winds, high annual precipitation, a long-time snow cover. The forests have been exposed also for about half century to gaseous and dust pollutants emitted by large industrial centres in the Czech Republic, Germany and Poland. Anthropogenic impacts may influence negatively the growth of tree fine roots, can develop ectomycorrhizas and alter the communities of ectomycorrhizal fungi and other microorganisms in soil. Ectomycorrhizal communities at the both forest sites were dominated by the same two morphotypes, which were further studied using the PCP-RFLP analysis for identification of the fungal species
Mostrar más [+] Menos [-]Atmospheric conditions and photooxidising pollution in North Western Europe: 1989 summer example
1992
Bavay, R. (Universite de Lille 1 (France). Laboratoire de Climatologie) | Roussel, I.
Seasonal variability and mitigation options for N2O emissions from differently managed grasslands
1998
Kammann, C. | Grunhage, L. | Muller, C. | Jacobi, S. | Jager, H.J. (Institute for Plant Ecology, University of Giessen, Heinrich-Buff-Ring 38, D-35392 Giessen, Germany)
Effects of environmental stress on forest crown condition in Europe. Part IV: statistical analysis of relationships
2000
Klap, J.M. | Voshaar, J.H.O. | Vries, W. de | Erisman, J.W.
Effects of environmental stress on forest crown condition in Europe. Part I: hypotheses and approach to the study
2000
Vries, W. de | Klap, J.M. | Erisman, J.W.
Natural stresses, nutrient imbalances and forest decline in southeastern Quebec
1989
Bernier, B. (Laval Univ., Quebec City, Qc. (Canada). Dept. of Forest Sciences) | Pare, D. | Brazeau, M.
Genetic implications in the decline of red spruce
1992
DeHayes, D.H. (Vermont Univ., Burlington, VT (USA). School of Natural Resources) | Hawley, G.J.
The role of weathering rate determinations in generating uncertainties in the calculation of critical loads of acidity
1999
Langan, S. | Hodson, M. | Bain, D. | Kennedy, F. | Horning, M. | Reynolds, B. | Hall, J. | Donald, L.
System Edisol and its measurement of CO2 flux between spruce stand and canopy layer of the atmosphere
1999
Havrankova, K. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny)
