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

Table 1

Agroclimatic and soil characteristics of the three studied sites.

Study site	Pamplona	Olite	Santacara
Rainfall (P, mm)	830	525	423
Evapotranspiration* (ET0, mm)	972	1163	1145
P/ET0	0.85	0.45	0.37
Temperature (°C)	12.4	13.5	14.2
Average barley yield (t grain ha^-1)	3.93	3.70	2.75
Soil type (FAO, 2003)	Calcic Cambisol	Calcic Cambisol	Haplic Calcisol
pH (0–30 cm) (1 : 2.5)	8.63	8.25	8.48
CaCO3 (0–30 cm) (g kg soil^-1)	252	359	363

∗Reference evapotranspiration, (FAO).