Carbon and Water in Upper Montane Soils and Their Influences on Vegetation in Southern Brazil

Table 3

Physicohydrical properties of soil in profiles in Caratuva Peak (𝑛=2).

Horizon	Thickness	Clay/silt/; sand**	Porosity (%)			Available water	Saturated; permeability	TOC	Soil; density	C stock	Potential water; retention capacity
	cm	g kg^−1	Total	Macro	Aeration	(%)	cm h^−1	%	kg m^−2	kg m^−2	L m^−2
Profile 1: grassland: lithic hemic/sapric folic histosol
O1	20	175	98.4	35.1	37.5	5.8	319.5	41.9	0.117	9.80	121.8
O2/H	10	200	95.8	12.1	12.8	5.2	0.3	40.9	0.238	9.73	83.0
Total	—	—	—	—	—	—	—	—	—	19.54	204.8
Average plus standard errors extrapolating to all sampling points (𝑛=3)										(26.1 ± 3.3)	(338.2 ± 8.5)
Profile 2: grassland: typic hemic/sapric haplic histosol
O1	22	100	99.9	34.4	35.3	7.4	158.2	42.3	0.108	10.05	142.1
O2	27	125	98.3	12.6	13.5	5.7	36.2	37.9	0.133	13.61	229.0
H	6	125	87.3	9.6	10.2	7.3	3	20.8	0.302	3.77	46.3
Cg	15	125	62.8*	9.2*	9.3*	5.3*	7.2*	1.37*	1.089*	2.24	80.3
Total	—	—	—	—	—	—	—	—	—	29.67	497.6
Average plus standard errors extrapolating to all sampling points (𝑛=3)										(46.3 ± 2.7)	(565.6 ± 7.7)
Profile 3: forest: “gleysolic” leptic dystrophic regosol
O	15	138	99.2	34.8	36.4	6.6	238.9	42.1	0.113	7.10	94.1
Big	13	125	62.8	9.2	9.3	5.3	7.2	1.37	1.089	1.94	69.6
C	29	125	62.8*	9.2*	9.3*	5.3*	7.2*	1.37*	1.089*	4.33	155.2
Total	—		—	—	—	—	—	—	—	13.37	318.8
Average plus standard errors extrapolating to all sampling points (𝑛=5)										(15.9 ± 2.5)	(398.8 ± 8.9)

∗Values estimated based on horizons with similar characteristics.
**Limited estimates for granulometric analysis due to the high organic matter concentrations.