خيارات البحث
النتائج 1 - 5 من 5
Changes in chemistry and mineralogy of forest soils by acid rain.
1992
Rampazzo N. | Blum W.E.H.
Erosion effects of air pollution on needle surfaces.
1986
Karhu M. | Huttunen S.
Nitrogen budget on a limestone site in the Austrian Alps
2002
Herman, F. (Institut fur Immissionsforschung und Forstchemie, Vienna (Austria). Bundesamt und Forschungscentrum fur Wald) | Smidt, S. | Englisch, M. | Feichtinger, F. | Gerzabek, M.: Haberhauer, G. | Jandl, R. | Kalina, M. | Zechmeister-Boltenstern, S.
While nitrogen input exceeded the critical loads of the WHO (1995), nitrogen deficiency and nutrient imbalances were verified by needle analyses. The atmospheric input of inorganic nitrogen was higher than the nitrogen output in 50 cm soil depth. A tracer experiment with 15N helped to prove that not more than half of the applied nitrate could be discharged. This allows the conclusion that nitrogen is stored in the system and that the site cannot yet be said to be saturated with nitrogen. The same result was also obtained by modelling
اظهر المزيد [+] اقل [-]Effects of air pollutants on mineral nutrition of Norway spruce and revitalization of declining stands in Austria
1992
Katzensteiner, K. (Universitaet fuer Bodenkultur, Vienna (Austria). Inst. of Forest Ecology) | Glatzel, G. | Kazda, M. | Sterba, H.
Volatile hydrocarbons in and around Vienna, Austria
1990
Lanzerstorfer, C. (Technical Univ., Vienna (Austria). Inst. for Analytical Chemistry) | Puxbaum, H.
