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
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