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Nitrogen input together with ecosystem nitrogen enrichment predict nitrate leaching from European forests

Titelangaben

MacDonald, Jannette ; Dise, Nancy ; Matzner, Egbert ; Armbruster, Martin ; Gundersen, Per ; Forsius, M.:
Nitrogen input together with ecosystem nitrogen enrichment predict nitrate leaching from European forests.
In: Global Change Biology. Bd. 8 (2002) Heft 10 . - S. 1028-1033.
ISSN 1365-2486
DOI: https://doi.org/10.1046/j.1365-2486.2002.00532.x

Abstract

The IFEF database (Indicators of Forest Ecosystem Functioning), consisting of nitrogen deposition, nitrate leaching fluxes, and soil and ecosystem characteristics, is analysed to evaluate the C/N ratio in the organic horizon as an indicator of nitrate leaching. One hundred and eighty one forests are examined, from countries across Europe ranging from boreal to Mediterranean regions, encompassing broadleaf and coniferous sites and plot and catchment studies. N input in throughfall ranges from less than 1kgNha1y1 in northern Norway and Finland to greater than 60 kg N ha-1 y-1 in the Netherlands and Czech Republic. The amount of NO3 leached covers a smaller range, between 1 and 40 kg N ha-1 y-1. Nitrate leaching is strongly dependent on the amount of nitrogen deposited in throughfall (N input) and simply adding the C/N ratio in the organic horizon to a regression equation does not improve this relationship. However, when the data are stratified based on C/N ratios less than or equal to 25 and greater than 25, highly significant relationships (P25. These empirical relationships may be used to identify which forested ecosystems are likely to show elevated rates of nitrate leaching under predicted future nitrogen deposition scenarios. Elevated NO3 leaching also shows a relationship with soil pH, with high rates of NO3 leaching only observed at sites with a pH 30 kg N ha-1 y-1. Tree age and species have no significant impact on the ecosystem response to N input at a regional scale.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER9773
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: 13 Aug 2015 06:12
Letzte Änderung: 23 Mär 2016 09:47
URI: https://eref.uni-bayreuth.de/id/eprint/18025