Mulvaney, Michael J.Graham, M.Xia, K.Barrera, Victor H.Botello, Rubén C.Saavedra, Ana KarinaMamani, Pablo2016-04-192016-04-192012SANREM CRSP Annual Meetings, Cincinnati, OH, 20-21 October 20127610_Soils_CCRA_poster_2012_v3.pdfhttp://hdl.handle.net/10919/70219Organic 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.application/pdfen-USIn CopyrightSoil organic matterSoilConservation agricultureConservationFarming systemsSoil organic carbon (soc) near-edge x-ray absorption fine structure (nexafs)Field ScaleDoes density fractionation of SOC represent chemically different carbon pools?Poster