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. 2023 Jun 7;9(6):e17044. doi: 10.1016/j.heliyon.2023.e17044

Table 1.

Physicochemical properties and pH buffering capacity of untreated, acid-spilled, and alkali-spilled soils (n = 20).

	Untreated soil				Acid-spilled soil				Alkali-spilled soil
	OM	Clay	CEC	pHBC	OM	Clay	CEC	pHBC	OM	Clay	CEC	pHBC
	%		cmol kg⁻¹	mmol kg⁻¹ pH unit⁻¹	%		cmol kg⁻¹	mmol kg⁻¹ pH unit⁻¹		%	cmol kg⁻¹	mmol kg⁻¹ pH unit⁻¹
Mean	3.25	12.55	13.29	32.96	1.55	12.33	9.14	20.26	1.00	12.38	6.79	18.48
Median	2.60	12.87	12.94	27.59	0.76	13.29	7.72	20.68	0.82	13.07	4.39	16.37
Range	0.38–7.95	0.91–25.60	2.24–26.29	9.89–75.42	0.19–4.94	0.59–24.80	0.26–24.15	8.42–36.77	0.22–3.38	0.75–24.93	0.23–21.80	8.62–32.51
SD	2.12	7.45	8.03	19.57	1.46	7.40	7.67	9.54	0.76	7.36	6.83	7.82