Does density fractionation of SOC represent chemically different carbon pools?
Mulvaney, Michael J.
Barrera, Victor H.
Saavedra, Ana Karina
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Organic matter stabilization is thought to be a process of physical protection and chemical recalcitrance. The determination of recalcitrant soil organic carbon (SOC) often relies on operational definitions provided by various fractionation techniques, usually particle size or density fractionation. However, it is unknown if these operational definitions represent true chemical recalcitrance.