Does density fractionation of SOC represent chemically different carbon pools?


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.



Soil organic matter, Soil, Conservation agriculture, Conservation, Farming systems, Soil organic carbon (soc) near-edge x-ray absorption fine structure (nexafs), Field Scale


SANREM CRSP Annual Meetings, Cincinnati, OH, 20-21 October 2012