Density fractionation reworked: Reduce material and costs |
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Authors: | Patrick Liebmann Ole Mewes Georg Guggenberger |
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Affiliation: | Institute of Soil Science, Leibniz Universität Hannover, Hannover, Germany |
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Abstract: | Soil density fractionation is a common tool to separate organic matter of different function and turnover. But it has not been tested so far how much soil material is necessary to obtain reproducible results. A reduction of chemicals like polytungstate would further save valuable resources. Here, we show that soil weight reduction from 25 to 5 g was not significantly affecting fractionation results. Compared to the commonly used 10–25 g, this corresponds to a saving of resources of up to 80%. |
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Keywords: | mineral-associated organic matter particulate organic matter sodium polytungstate soil fractions soil organic matter |
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