Humus and Humic Acids of Luvisol and Cambisol of Jiguli Ridges, Samara Region, Russia

Table 3

HA elemental composition.

Element content, atomic, %	Cambisol	Luvisol	RL related to Cambisol	RL related to Luvisol
C	36.97±0.07	34.34±0.16	38.16±0.26	36.23±0.24
H	37.25±0.08	38.78±0.12	35.78±0.13	38.53±0.23
N	2.89±0.30	2.03±0.45	2.48±0.34	2.75±0.27
O	22.88±0.25	24.84±0.32	23.57±0.27	22.48±0.34
C/N	12.79	16.92	15.39	13.17
H/C	1.00	1.13	0.94	1.06
O/C	0.62	0.72	0.62	0.62