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Micro-scale variation of solid-phase properties and soil solution chemistry in a forest podzol and its relation to soil horizons

Title data

Göttlein, Axel ; Stanjek, Helge:
Micro-scale variation of solid-phase properties and soil solution chemistry in a forest podzol and its relation to soil horizons.
In: European Journal of Soil Science. Vol. 47 (1996) Issue 4 . - pp. 627-636.
ISSN 1351-0754
DOI: https://doi.org/10.1111/j.1365-2389.1996.tb01861.x

Abstract in another language

In order to evaluate micro-scale heterogeneities 55 micro suction cups were placed in an arrayat 15 mm intervals in a profile face of a cambic podzol. The chemistry of soil solution (mineralanions, pH, UV absorption as a measure for DOC) was compared with solid-phase propertiesfrom soil samples (2 cm’ volume), which had surrounded the suction cups. Sequential extractiontechniques (water, NhCl, hydroxylamin-hydrochloride, citrate-bicarbonate, oxalate, dithionitecitrate-bicarbonate) and base titrations were applied to characterize the solid phase. Although theaverage soil solution concentrations between horizons often differed significantly, the spatialdistributions of pH and SO:- did not correlate with soil horizon borders. Even if concentrationisolines and soil horizon borders were parallel, marked concentration gradients could be observedwithin individual soil horizons. The less intense the interaction between solute ion and soil matrix,the greater was the variation in solution concentration within a soil horizon. For the soil solidphase only a weak correlation of slow buffer reactions to soil horizons was found. The distributionof extractable Fe and Al was typical for a podzol profile, however, with very steep gradientswithin single soil horizons. Except for pH, which was related mainly to citrate-bicarbonateextractable aluminium, no solid-phase characteristic showed a clear correlation with soil solutionchemistry.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER6781
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/20753