Microbial enzymatic stoichiometry and the acquisition of C, N, and P in soils under different land-use types in Brazilian semiarid

Abstract

The enzymatic stoichiometry varied between land-use in both soil depth.• The values of C-and N-acquiring enzymes were higher at 0−5 cm depth.• Soils under different land-use types in the Brazilian semiarid are P-limited. This study hypothesized that different land-use affect the microbial enzymatic stoichiometry and C-, N-, and P-acquisition in Brazilian semiarid soils. Thus, the enzymes β-glucosidase (C-acquiring enzyme), urease (N-acquiring enzyme), and acid phosphatase (P-acquiring enzyme) were assessed in soil samples collected at 0−5 and 5−10 cm depth from a tropical dry forest, a protected area with Angico, a protected area with Ipê, scrub area, and an agricultural area with maize.

Fungal community structure and functional genes abundance in Brazilian drylands under desertification process

“…In general, the values of C-, N-, and P-acquiring enzymes were higher in native and restored soils, and it could be related to the permanent presence of vegetation in native (e.g., herbaceous plants, stunted trees, and bushes) and restored (grazing exclusion with secondary vegetation) soils . Previous studies have reported that the presence of plants contributed to higher values of C-, N-, and P-acquiring enzymes (Piotrowska-Długosz et al, 2022;Medeiros et al, 2023). In contrast, degraded soils, which does not present plants neither litter, presented the lowest values of C-, N-, and P-acquiring enzymes.…”