Casting Activity of Scherotheca gigas in No-Till Mediterranean Soils: Role in Organic Matter Incorporation and Influence of Aridity

Table 3

Cast-to-soil ratios of clay, total organic C, and C in the form of POM (C-OPM) at the three study sites. Values followed by the same letter in the same row belong to the same Duncan’s homogeneous groups (𝑃<.05) for each parameter among sites. Means ± standard error (𝑛=3).

Study site		Pamplona	Olite	Santacara
Cast-to-soil ratios	Clay	0.76 ± 0.02^b	0.53 ± 0.07^a	0.59 ± 0.02^a
	Total OC	1.57 ± 0.11	1.82 ± 0.12	1.50 ± 0.04
	C-POM	2.44 ± 0.19^a	3.00 ± 0.37^ab	4.01 ± 0.45^b