Physicochemical Properties and Surface Charge Characteristics of Arid Soils in Southeastern Iran

Table 2

Some physical properties of the representative profiles.

Soil number	Depth (cm)	Clay	Silt	Sand	Texture^+	Structure*	𝜌𝑏 (g cm^−3)	Gravel (%)
		(%)
1	0–25	34	56	10	SiCL	WP	1.54	—
	25–78	14	36	50	L	Ma	1.50	—
	78–110	32	48	20	CL	WG	1.53	—
	100–150	12	22	66	SL	Ma	1.51	—
2	0–20	10	40	50	L	WP	1.52	—
	20–50	10	8	82	LS	Sg	1.53	—
	50–100	12	16	72	SL	Sg	nd	35
	100–150	8	2	90	S	Sg	1.36	—
3	0–30	18	38	44	L	WG	1.44	—
	30–80	16	37	47	L	WG	1.40	—
	80–150	16	12	72	SL	Sg	1.49	—
4	0–20	10	16	74	SL	Sg	nd	30
	20–70	8	16	76	SL	Sg	nd	50
	70–95	14	12	74	SL	Sg	nd	10
	95–150	12	4	84	LS	Sg	nd	50
5	0–45	18	20	62	SL	Sg	nd	85
	45–150	24	20	56	SiL	Sg	nd	65
6	0–42	16	34	50	L	WG	1.41	—
	42–88	10	12	78	SL	Ma	1.37	—
	88–150	12	26	62	SL	Ma	1.41	—
7	0–36	24	42	34	L	WG	1.35	—
	36–86	30	50	20	CL	WG	1.39	—
	86–150	26	38	36	L	WG	1.41	—
8	0–30	12	14	74	SL	Sg	nd	70
	30–70	10	8	82	LS	Sg	nd	75
	70–150	14	14	72	SL	Sg	nd	80

Texture⁺: SL: sandy loam, LS: loamy sand, L: loam, S: sand, SiL: silty loam, SiCL: silty clay loam. Structure*: Ma: massive, Sg: single grain, WP: weak platy, WG: weak granular, nd: no determine.