%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A de Medeiros, E. V.
%A Silva, E. D.
%A Duda, G. P.
%A Lira, M. A.
%A dos Santos, U. J.
%A Hammecker, Claude
%A da Costa, D. P.
%A Araujo, F. F.
%A Pereira, A. P. D.
%A Mendes, L. W.
%A Araujo, A. S. F.
%T Microbial enzymatic stoichiometry and the acquisition of C, N, and P in soils under different land-use types in Brazilian semiarid
%D 2023
%L fdi:010086849
%G ENG
%J Soil Ecology Letters
%@ 2662-2289
%K C:N:P stoichiometry ; tropical forests ; soil depth ; Luvisols
%K BRESIL ; ZONE SEMIARIDE ; PERNAMBUCO
%M ISI:000913483100001
%N 3
%P 220159 [8 ]
%R 10.1007/s42832-022-0159-x
%U https://www.documentation.ird.fr/hor/fdi:010086849
%> https://www.documentation.ird.fr/intranet/publi/2023-03/010086849.pdf
%V 5
%W Horizon (IRD)
%X ? 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 beta-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 Ipe, scrub area, and an agricultural area with maize. The values of C-, N-, and P-acquiring enzymes were used to calculate the enzymatic C:N, C:P, and N:P ratios. The values of C:P and N:P ratios were higher at 0-5 cm depth, while no significant variation, between soil depth, was observed for C:N ratio. The values of C-and N-acquiring enzymes were higher at 0-5 cm in tropical dry forest areas and Angico forest, respectively. In all land use types, the values of vectors L and A were higher than 1 degrees and 45 degrees, respectively. This study showed that both land-use and soil depth influence the enzymatic stoichiometry, showing higher values of C-and N-acquiring enzymes in native and protected forests at soil surface.
%$ 068 ; 082