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Synthesis of Nitrogen Pools and Fluxes from European Forest Ecosystems

Titelangaben

Dise, Nancy ; Matzner, Egbert ; Gundersen, Per:
Synthesis of Nitrogen Pools and Fluxes from European Forest Ecosystems.
In: Water, Air, & Soil Pollution. Bd. 105 (1998) Heft 1-2 . - S. 143-154.
ISSN 0049-6979
DOI: https://doi.org/10.1023/A:1005068501864

Abstract

To investigate which ecosystem parameters determine the risk and magnitude of nitrate leaching we compiled data from published and unpublished sources on dissolved inorganic nitrogen (DIN: NO3- + NH4+) in throughfall, DIN leaching loss in runoff or seepage water, and other ecosystem characteristics from 139 European forests. Not all data were available for all sites: 126 sites had at least one year's data on DIN inputs in throughfall range between -1yr-1 and the losses with seepage or runoff range between -1 yr-1. Retention of N within the ecosystem increases with increasing DIN deposition and increasing proportion of NH4+ in deposition. The amount of N in needles and litterfall shows a significant linear relationship with throughfall deposition of DIN, whereas the C:N ratio of the organic (OH) horizon is uncorrelated to the level of throughfall-DIN flux. About 50 % of the variability in DIN leaching loss can be explained by the flux of DIN in throughfall. Alternatively, about 60 % of the variability in DIN leaching loss can be explained in a two-variable multiple regression combining the C:N ration of the organic soil and the pH of the mineral soil. The survey data suggest that leaching of DIN from forest ecosystems in Europe is related in part to current DIN deposition and in part to the longer-term internal ecosystem N status as reflected in the chemistry of the humus and acidification status of the soil.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER7190
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Ehemalige Professoren > Lehrstuhl Bodenökologie - Univ.-Prof. Dr. Egbert Matzner
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 07 Aug 2015 07:00
Letzte Änderung: 23 Mär 2016 09:48
URI: https://eref.uni-bayreuth.de/id/eprint/17818