Refinar búsqueda
Resultados 1-4 de 4
Is microbial population associated to ectomycorrhized roots of Norway spruces in Krkonose National Park influenced by forest decline?
2002
Martinotti, M.G. (University of Piemonte Orientale, Novara (Italy)) | Avidano, L. | Fracchia, L.
Investigations on the bacterial communities associated to ectomycorrhized roots of seedlings from three stands with different degrees of regeneration decline (high, intermediate and low) and from seedlings grown on monoliths obtained from the very same stands have been carried out. The results suggest that forest decline does not influence bacterial biomass associated to seedlings roots but induce a clustering of specific bacterial species adapted to the different degree of forest decline
Mostrar más [+] Menos [-]Air pollution status and forest health in the Retezat National Park, Romania
2002
Badea, O. (Forest Research Institute, Bucharest (Romania)) | Popescu, F. | Barbu, I. | Bytnerowicz, A. | Musselman, R. | Gancz, V. | Postelicu, D. | Vasile, C.
Ozone is a well-known phytotoxic agent causing damage to vegetation in parts of North America and Europe. Transboundary or long-range transport of ozone from Western Europe and the generation of ozone from local and regional precursors results in increasing ozone concentrations in Central and Eastern Europe, including the Carpathian Mountaians. Other air pollutants such as sulphur dioxide, nitrogen oxides, ammonia and heavy metals may also affect the health of Carpathian forests. During the 2000-2002 summer seasons, concentrations of ozone, sulphur dioxide, nitrogen oxides and ammonia were monitored with passive samplers. Results of those measurements will be used for development of GIS models of spatial and temporal distribution of air pollutants
Mostrar más [+] Menos [-]Heavy metals and pedogenic processes in the Krkonose National Park (Czech Republic)
2002
Bonifacio, E. | Santoni, S. | Zanini, E. (Universita di Torino, Grugliasco (Italy). DIVAPRA Chimica Agraria)
Remarkable differences were found in soil development on three sites. At Modru Dul (the least damaged site) Sopdosols and Inceptisols were found, in Alzbetinska (moderately damaged) Entisols are common, while in Mumlavksa hora (highly damaged) the representative soils are several kind of Podzols, with variable degree of drainage restriction and organic soils. The heavy metal content is always rather low and the vertical distribution does not indicate any appreciable contribution of atmospheric contamination
Mostrar más [+] Menos [-]Spatial variability of some topsoil character in a declining forest site (Krkonose National Park, Czech Republic)
2002
Zanini, E. | Caimi, A. | Santoni, S. | Bonifacio, E. (DIVAPRA-Chimica Agraria, Grugliasco (Italy))
45 sites were selected and sampled on the transects and according to the first results of the spatial analysis, 15 more sites were added where useful for the optimal interpolation. Topsoils were sampled including both the soil organic horizons and the more superficial mineral horizon, frequently E, if reached. The depth of the organic horizons, the grass cover, ranked by its hydrophilic character, related to the incipient hydromorphy visible where Norway spruce is more declining, and the Norway spruce health status were systematically recorded
Mostrar más [+] Menos [-]