Fig. 2. Correlation of NMR and thermogravimetry (TG) results for free light fractionsoil organic matter (FLFSOM) and intra-aggregate light fractionsoil organic matter (IALFSOM) samples under all three land uses (a) Exo1 and O-alkyl C (b) Exo2 and aromatic C, and (c) Exo1 and O-alkyl/alkyl ratio.