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. 2019 Aug 1;14(8):e0220476. doi: 10.1371/journal.pone.0220476

Table 3. Proportions of ion intensity of different compound classes (%TII) and total ion intensity in parentheses (TII counts mg-1) of the microaggregate size fraction of topsoil samples of the control without clear-cut, 10, and 24 month after clear-cut.

Values followed by the same letters within a compound class were not significantly different (P < 0.05, n = 3).

Control 10 month 24 month
TII from compound classes
CHYDR 1.7a (9.7) 2.8b (18.1) 1.6a (14.6)
PHLM 1.7a (9.7) 4.4b (29.1) 3.1a (28.8)
LDIM 3.0a (17.2) 4.3ab (28.3) 4.6b (42.9)
LIPID 3.9a (22.5) 6.7b (44.1) 7.1c (66.1)
ALKYL 7.8a (45.3) 8.6a (56.5) 8.3a (77.5)
NCOMP 0.7a (3.9) 0.9b (6.1) 0.6c (5.3)
STEROL 9.8a (57.0) 8.8b (57.5) 14.3c (133.5)
PEPTI 1.9a (11.3) 2.6b (16.9) 1.8a (16.6)
SUBER 0.6a (3.2) 0.4b (2.7) 0.4b (3.8)
FATTY 2.3a (13.6) 1.5b (10.1) 1.2c (11.0)
m/z 15…56 1.0a (5.7) 1.3b (8.6) 0.8c (7.6)

CHYDR, carbohydrates; PHLM, phenols and lignin monomers; LDIM, lignin dimers; LIPID, long-chained hydrocarbons; ALKYL, alkylaromatics; NCOMP, N-containing non-peptidic compounds; STEROL, sterols; PEPTI, peptides; SUBER, suberin; FATTY, free fatty acids C16-C34. Values followed by the same letters within a line were not significantly different (P < 0.05).