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Water, NaHCO3−, NaH2PO4− and NaCl-extractable SO42− in acid forest soils

Title data

Alewell, Christine ; Matzner, Egbert:
Water, NaHCO3−, NaH2PO4− and NaCl-extractable SO42− in acid forest soils.
In: Zeitschrift für Pflanzenernährung und Bodenkunde. Vol. 159 (1996) Issue 3 . - pp. 235-240.
ISSN 0044-3263
DOI: https://doi.org/10.1002/jpln.1996.3581590303

Abstract in another language

A variety of different methods have been used for the determination of inorganic soil SO42- in the past, which makes it difficult to compare SO42- contents of soils.Sulfate was extracted with the four commonly used extraction solutions 0.5 M NaHCO3, 0.02 M NaH2PO4, 0.1 M NaCl and H2O from A-, Bw- and Bs-horizons of six acid forest soils. 5 g of field moist soil were percolated with a flow rate of 5 ml/h and percolations were repeated as long as SO42- was detectable in the percolate (> 0.5 mg SO4.l-1).NaCl and NaHCO3extracted highest amounts of total inorganic SO42- in A-horizons, but NaHCO3caused analytical problems. NaHCO3and NaH2PO4yielded highest amounts in B-horizons. With the exception of Bs-horizons more than 70% of the total inorganic SO42- was H2O soluble. Thus, if H2O-soluble SO42- is defined as reversibly bound, the greater part of the inorganic SO42- in the investigated acid forest soils was reversibly bound. This SO42- fraction can potentially be released, if SO42- deposition decreases.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER6979
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: 07 Aug 2015 07:00
Last Modified: 07 Aug 2015 07:00
URI: https://eref.uni-bayreuth.de/id/eprint/17822