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Updated: Aug 25, 2026

Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools
Published on: December 16, 2022
Differences between super-centrifuged and membrane-filtrated soil solutions obtained from bulked and non-bulked
P Castilho Pd1, R Van Faassen, R Moerman
1DLO Research Institute for Agrobiology and Soil Fertility (AB-DLO), PO Box 129, NL-9750 AC, Haren, The Netherlands.
Abstract:
The composition of the soil solution must be known to estimate the mobility and availability of plant nutrients and contaminants. When soil centrifugation is used to obtain the soil water for analysis, bulked soil samples are normally used in order to reduce random variations. In the present study, large systematic differences between the centrifugates from bulked and core samples are reported. For most of the soil solution components, no, or only small differences could be detected between super-centrifuged and membrane-filtrated solutions.
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