Artigo
Physical characterization of a dystroferric red latosols under semideciduous seasonal forest
Registro en:
BRAGA, R. M. et al. Physical characterization of a dystroferric red latosols under semideciduous seasonal forest. Australian Journal of Basic and Applied Sciences, [S.l.], v. 9, n. 7, p. 422-428, Apr. 2015.
Autor
Braga, Rafael Malfitano
Dias Junior, Moacir de Souza
Braga, Francisco de Assis
Venturin, Nelson
Protásio, Thiago de Paula
Institución
Resumen
Native forests, notedly belonging to Mata Atlântica biome, occupy a crescent highlight
as reference in terms of original conditions in relation to actions of soil use and
management. The current work aimed to evaluate and compare physical attributes of a
typical dystroferric Red Latosol under the remaining of Semideciduous Seasonal Forest
at campus of Federal University of Lavras, Minas Gerais state. The profile was sampled
up to one meter deep. Results were submitted to variance analysis, multiple
comparisons of means (Scott-Knott), correlation and linear regression tests. The profile
was homogeneous, and particle density, texture, soil bulk density, total porosity and
water holding capacity did not present significant variation up to one meter deep. The
distribution of pores by size varied with depth and proportional alterations between
macro and microporosity, and total porosity kept unchanged throughout the profile. It
was observed a high water aggregates stability, which was correlated to the presence
and high contents of organic matter. The profile presented low water holding capacity,
signaling that this forest ecosystem is adapted to the condition of relative natural hydric
stress during drought period in this region, which is typical of the occurrence area of
Semideciduous Seasonal Forest.