Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Impact of preferential flow on soil chemistry of a podzol

Title data

Bogner, Christina ; Borken, Werner ; Huwe, Bernd:
Impact of preferential flow on soil chemistry of a podzol.
In: Geoderma. Vol. 175-176 (2012) . - pp. 37-46.
ISSN 0016-7061
DOI: https://doi.org/10.1016/j.geoderma.2012.01.019

Abstract in another language

Preferential flow paths are thought to affect the patterns of chemical properties of forest soils. However, littleis known about their influence on podzols in coniferous forests. In our study we examined how soil chemicalproperties of a podzol in a Norway spruce stand are affected by preferential flow.We did three tracer experimentswith Brilliant Blue FCF and analyzed soil chemical parameters (exchangeable cations, pH, total C, total N and C:Nratio) of preferential flow paths and soil matrix. For statistical analysis, we used mixed-effects models to accountfor a hierarchical sampling of our data. We found 5.0 g kg−1 more C, 0.24 g kg−1 more N, a C:N ratio larger by 2,smaller pH values (0.16 pH units), 32% more Ca and 57% more Mg in preferential flowpaths than in soil matrix.Compared to the adjacent soil matrix, the content of Al did not differ significantly. However, 67% more Fe werefound in preferential flow paths. These distinct chemical properties are probably due to root exudates, transportof solutes and dissolved organic carbon and percolation of acid soil solution from organic horizons along preferentialpaths.We attribute the increase of Ca and Mg to their transport via preferential flow paths after the application oflime some years ago.We conclude that a lower pH might enhance the release of Fe (and possibly Al) and thus increasepodzolisation. In addition, our results show that soil liming could affect both the topsoil and the subsoil viatransport of basic cations along preferential flow paths.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER71684
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Ecological Modelling
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 > Chair Soil Physics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Soil Physics - Univ.-Prof. Dr. Bernd Huwe
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
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 29 Jun 2015 06:09
Last Modified: 29 Jun 2015 06:09
URI: https://eref.uni-bayreuth.de/id/eprint/15474