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Soil nitrogen turnover in proximal and distal stem areas of European beech trees

Title data

Chang, Shih-Chieh ; Matzner, Egbert:
Soil nitrogen turnover in proximal and distal stem areas of European beech trees.
In: Plant and Soil. Vol. 218 (2000) Issue 1-2 . - pp. 117-125.
ISSN 1573-5036
DOI: https://doi.org/10.1023/A:1014931625707

Abstract in another language

In European beech (Fagus sylvatica L.) forests, a large proportion of the water and ion input to the soil results fromstemflow which creates a soil microsite of high element fluxes proximal to the tree trunk. The soil proximal to thestem is considered to have different rates of nitrogen turnover which might influence the estimation of N-turnoverrates at the stand scale. In a previous study we reported high nitrate fluxes with seepage proximal to the stems in aforest dominated by European beech in Steigerwald, Germany. Here, we investigated the soil nitrogen turnover inthe top 15 cm soil in proximal (defined as 1 m2 around beech stems) and distal stem areas. Laboratory incubationsand in situ sequential coring incubations were used to determine the net rates of ammonification, nitrification,and root uptake of mineral nitrogen. In the laboratory incubations higher rates of net nitrogen mineralization andnitrification were found in the forest floor proximal to the stem as compared to distal stem areas. No stem relateddifferences were observed in case of mineral soil samples. In contrast, the in situ incubations revealed higher ratesof nitrification in the mineral soil in proximal stem areas, while net nitrogen mineralization was equal in proximaland distal areas. In the in situ incubations the average ratio of nitrification/ammonificationwas 0.85 in proximal and0.34 in distal stem areas. The net nitrogen mineralization was 4.4 g N m

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER7343
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: 13 Aug 2015 06:12
URI: https://eref.uni-bayreuth.de/id/eprint/18053