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Aluminium output fluxes from forest ecosystems in Europe

Title data

Dise, Nancy ; Matzner, Egbert ; Armbruster, Martin ; MacDonald, Jannette:
Aluminium output fluxes from forest ecosystems in Europe.
In: Journal of Environmental Quality. Vol. 30 (2001) Issue 5 . - pp. 1747-1756.
ISSN 0047-2425

Abstract in another language

Data from 89 forested catchments and plots across Europe wereused to define empirical relationships between aluminum leaching and input fluxes of major ions, output fluxes of major ions, ecosystem parameters such as soil pH, and combinations of these. Forests that release dissolved Al to seepage or surface waters are located primarily in areas receiving the highest loading of acid rain, and the output flux of Al shows the highest correlations to the throughfall flux of inorganic nitrogen, the output fluxes of NO_3 , H_, and SO2_4 , and the mineral soil pH. If the speciation of Al is taken to be Al3_ (an overestimate), Al is released in a nearly 1:1 molar charge ratio with the sum of NO_3 and SO2_4 in runoff or seepage water over a wide range of basepoor bedrock types and acid deposition across Europe. The empirical data point to a threshold range of N deposition of 80 to 150 mmolc N m_2 yr_1 and a (less clearly defined) range of S deposition of 100 to 200 mmolc SO2_4 m_2 yr_1 above which Al released from forests exceeds 100 mmolc Al m_2 yr_1. Within this threshold range, the sites that release little or no dissolved Al are those that continue to assimilate input N and/or have high soil pH (_4.5).

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER7488
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Soil Ecology - Univ.-Prof. Dr. Egbert Matzner
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 13 Aug 2015 06:12
Last Modified: 11 Apr 2018 08:50
URI: https://eref.uni-bayreuth.de/id/eprint/18031