Total and dissolved soil organic and inorganic carbon and their relationships in typical loess cropland of Fengu Basin

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 2 Main soil carbon forms and their ratios in the Linfen basin (LFB) and Yuncheng basin (YCB)

Depth (cm)	SOC (g/kg)		SIC (g/kg)		DOC (mg/kg)		DIC (mg/kg)		DOC:SOC (%)		DIC:SIC (%)
Depth (cm)	LFB	YCB	LFB	YCB	LFB	YCB	LFB	YCB	LFB	YCB	LFB	YCB
0–20	15.1 Aa	10.3 Ba	9.17 Bb	12.1 Aab	90.1 Aa	75.2 Ba	43.1 Aa	41.3 Aa	0.61 Ac	0.76 Ac	0.91 Aa	0.39 Ba
20–40	8.02 Ab	5.75 Bb	9.69 Bb	11.4 Ab	71.1 Ab	59.3 Bb	37.4 Aa	42.2 Aa	0.95 Ab	1.09 Ab	0.43 Ab	0.39 Aa
40–60	5.73 Ac	3.91 Bc	9.29 Bb	12.2 Aab
60–80	4.95 Ac	3.38 Bc	10.6 Bb	13.4 Aa	57.3 Ac	64.9 Ab	41.5 Aa	41.8 Aa	1.24 Ba	1.88 Aa	0.39 Ab	0.39 Aa
80–100	4.35 Ac	3.14 Bc	12.5 Aa	12.8 Aa

Values followed by the same letter (capital letter between the basin and lowercase letter between layers) are not significantly different at P < 0.05 based on LSD test