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Issue 17 (2) 2018 pp. 13-21

Ryszard Oleszczuk1, Ewelina Zając2, Edyta Hewelke3, Karolina Wawer1

1 Warsaw University of Life Sciences – SGGW, Faculty of Civil and Environmental Engineering, Department of Environmental Improvement
2
University of Agriculture in Krakow, Faculty of Environmental Engineering and Land Surveying, Department of Land Reclamation and Peat-Bog Protection
3
Warsaw University of Life Sciences – SGGW, Faculty of Civil and Environmental Engineering, Laboratory – Water Center WULS-SGGW

DETERMINATION OF WATER RETENTION CHARACTERISTICS OF ORGANIC SOILS, USING THE INDIRECT FILTER–PAPER METHOD

Keywords: retention characteristics, pF curve, indirect methods for the determination of pF curve, filter-paper method
Abstract:

The paper describes the filter-paper method as an indirect method for the estimation of the pF characteristics. In this method, no direct measurements of soil water potential (pF) are performed, but the latter is determined on the basis of the gravimetric moisture content of the filter paper, which is in contact with the analysed soil samples. Therefore, there is a need to establish a calibration equation that would express the relationship between the value of the soil water potential (pF) and the gravimetric moisture content of the filter paper. The calibration procedure was performed using standard measurement methods of determining pF curves (sand box, pressure plates) and filter paper (Whatman no 42). Based on the research conducted, calibration curves were developed for the filter-paper method, for the analysed sapric (drainic) histosoles, developed from moss and alder peats of medium (hemic) and strong (sapric) degree of decomposition, originating from the mid-basin of the Biebrza river. The proposed calibration curves were presented as 3-degree polynomial equations. The aforementioned equations can be used for the estimation of retention characteristic for sapric (drainic) histosoles, showing similar properties and comparable degree of secondary decomposition of the peat mass.

pub/17_2_13.pdf Full text available in in Adobe Acrobat format:
http://www.formatiocircumiectus.actapol.net/volume17/issue2/17_2_13.pdf

DOI: 10.15576/ASP.FC/2018.17.2.13

For citation:

MLA Oleszczuk, Ryszard, et al. "DETERMINATION OF WATER RETENTION CHARACTERISTICS OF ORGANIC SOILS, USING THE INDIRECT FILTER–PAPER METHOD." Acta Sci.Pol. Form. Cir. 17.2 (2018): 13-21. http://dx.doi.org/10.15576/ASP.FC/2018.17.2.13
APA (2018). . Acta Sci.Pol. Form. Cir. 17 (2), 13-21 http://dx.doi.org/10.15576/ASP.FC/2018.17.2.13
ISO 690 OLESZCZUK, Ryszard, et al. DETERMINATION OF WATER RETENTION CHARACTERISTICS OF ORGANIC SOILS, USING THE INDIRECT FILTER–PAPER METHOD. Acta Sci.Pol. Form. Cir., 2018, 17.2: 13-21. http://dx.doi.org/10.15576/ASP.FC/2018.17.2.13
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Streszczenie w języku polskim:
http://www.formatiocircumiectus.actapol.net/tom17/zeszyt2/abstrakt-13.html