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Table 2 Relative areas of the main absorption peaks of IR spectrum of Fe/Al-OC extracted from original soils (%) (semi-quantitative)

From: Molecular changes of ferric oxide bound soil humus during the decomposition of maize straw

Soil types Phenol-C Amide-C Polysaccharide-C
TP 77.51 6.39 16.10
RP 74.43 6.07 19.50
PP 74.31 5.78 19.91
MS 78.16 6.22 15.62