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Assessment of a laboratory method to obtain the equilibrium solution composition of forest soils

Title data

Matschonat, Gunda ; Vogt, Robert:
Assessment of a laboratory method to obtain the equilibrium solution composition of forest soils.
In: European Journal of Soil Science. Vol. 48 (1997) Issue 3 . - pp. 545-552.
ISSN 1351-0754
DOI: https://doi.org/10.1111/j.1365-2389.1997.tb00220.x

Abstract in another language

Equilibrium studies on soil require reliable estimates of ion concentrations in the soil solution underfield conditions. We evaluated the previously described iterative method to approximate the equilibriumsoil solution (ESS) with four acid forest soils. We examined for which ions the ESS is suitable, makinguse of the fact that concentrations in water extracts are functions of the soi1:solution ratio. The electricconductivity, pH, and the concentrations of base cations, Mn2+, NO-3, S042+, and dissolved organiccarbon (DOC) were usually linear with the soi1:solution ratio in water extracts, whereas no relation wasobserved for A1 (with one exception) and Fe. Assuming that the ESS can be attributed the soi1:solutionratio of the field moist soil at the time of sampling, concentrations appeared as the continuation of thelinear relation with the soi1:solution ratio for base cations, pH, and the electric conductivity. Thisindicates that the ESS actually represents field conditions for these solution properties. For A1 waterextracts allowed no evaluation of the ESS result. The ESS underestimated SO4" concentrations underfield conditions, presumably because the lack of DOC in the solutions added distorts the balanceamongst anions.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER6868
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
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: 22 Oct 2015 07:29
Last Modified: 22 Oct 2015 07:29
URI: https://eref.uni-bayreuth.de/id/eprint/20736