Natural Enrichment of Trace Elements in Surface Horizons of Calcareous Soils (La Mancha, Spain)

Table 4

Trace element content (mg/kg) on average in each horizon and the enrichment factor .

	Sr	Ba	Zr	Cr	Ce	Rb	V	Zn	Ni	Pb	Nd	La	Y	Cu	As	Nb	Co	Ga	Th	Hf	Sc
mean	322.98	177.7	151.9	31.52	34.3	40.32	32.82	32.32	15.72	17.12	15.52	16.94	11.74	11.66	12.16	9.18	6.78	6.3	6.44	4.38	5.16
mean	275.28	172.38	156	33.62	38.92	43.34	33	32.2	15.8	18.14	16.42	17.06	13.42	12.3	13.06	9.68	6.8	6.64	7.14	5.22	5.08
mean	708.26	118.58	39.68	14.88	8.9	11.1	9.78	10.74	7.72	5.46	4.48	2.56	3.6	6.4	10.04	5.54	5.22	2.7	1.64	1.88	0
Enrichment	0.46	1.5	3.83	2.12	3.85	3.63	3.36	3.01	2.04	3.14	3.46	6.62	3.26	1.82	1.21	1.66	1.3	2.33	3.93	2.33	5.16