Figure 3.
A similar pattern to Ca2+ was obtained with Mg2+ content, recording values categorised as low (< 0.5meq 100 s-1) in most uses for both depths. It should be noted that the nutrient content, such as available P and Exchangeable bases, were lowest in the forest land use, reflecting the nature of these soils and illustrating their limited contribution to quality (Bravo, Ramírez, et al., 2017). The available Zn content was significantly higher (p<0.05) at 0-10 cm deep (Figure 3e). The chakras (A, B, C) recorded higher values than the rest of the uses, ranging from 2.84 to 0.76 mg kg-1, with a similar pattern for the subsurface layer (10-30cm). Available Zn concentrations <3mg kg-1 have been indicated as critical, therefore, the values obtained ranged from medium to low levels. Finally, leaf litter production (Figure 3f) varied significantly (p<0.05) according to land use, defining three groups. The first group of values ranged from 8 to 10Mg ha-1 and included the forest and two livestock systems (Cattle_B and _C), the second group had values close to 4Mg ha-1 and comprised Chakra_A and Cattle_A, and the third group was Chakra_A and _C with values between 2 and 4Mg ha-1.