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Einfluß der Bodeneigenschaften auf die Freisetzung der gelösten organischen Substanz (DOM) aus dem Oberboden

Title data

Kalbitz, Karsten ; Knappe, Siegfried:
Einfluß der Bodeneigenschaften auf die Freisetzung der gelösten organischen Substanz (DOM) aus dem Oberboden.
In: Zeitschrift für Pflanzenernährung und Bodenkunde. Vol. 160 (1997) Issue 4 . - pp. 475-483.
ISSN 0044-3263
DOI: https://doi.org/10.1002/jpln.19971600407

Abstract in another language

A percolation experiment over a period of three month with small monoliths from forest and grassland:soils varying in their anthropogenic changes wa carried gut toidentify, to weigh and to quantify important soil properties for DOM release from the topsoil. Quality of soil organic matter determines the amount of DOM releasedfrom the topsoil if the soils have a low ability to adsorb and to precipitate DOM. Favorable conditions for high DOC concentrations in the soil solution are wide C/Nratios in the soil and in the hot water soluble fraction, a high soil content of hot water soluble organic carbon and a high portion of hot water soluble organic carbon inthe total organic carbon content. Anthropogenic changes of the Soils are effective to DOM release via changing quality of soil organic matter. Long dry periods : andlarge water fluxes can further increase DOM release. The effects of soil organic matter can be disguised in soils with a high DOM retention capacity (high CEC, highcontent of exchangeable bases, Fe-ox and Fe-d). Then adsorption and precipitation determine DOM release from the topsoil and contribute;to a decrease of DOMrelease.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER9139
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/20732