Table 4. Chemical properties of the soil representative of cluster within the horizon.

Sample ID	pH	TOC	TKN	Al	Fe
		(g/Kg)	(g/Kg)	(g/Kg)	(g/Kg)
26 O	4.94	20.9	1.1	0.8	1.3
15 O	4.41	14.9	1.0	0.7	0.9
23 O	4.31	37.1	1.5	1.2	1.5
13 O	4.48	25.2	4.4	0.3	0.4
26 A	4.78	BDL	0.4	1.3	2.2
44 A	4.68	4.1	0.4	0.9	1.3
21 A	4.64	6.6	0.3	1.9	2.8
13 A	4.8	1.4	0.1	0.3	0.5
44 B	4.95	4.3	0.2	2.1	3.0
25 B	4.69	5.4	0.2	2.8	4.2
10 B	4.98	4.9	0.2	2.2	2.5
13 B	4.74	4.0	0.1	2.3	4.3