Author(s): MENEZES, A. R. de; FONTANA, A.; ANJOS, L. H. C. dos; PEREIRA, M. G.

Summary: Soils classified as Spodosols in Brazil occur at different landscapes, from coastal plains to high altitude areas. Although they are present in different environments, these soils are formed mainly under humid climates, from sandy parent materials, and usually with shrub and grasses vegetation. They differ from Spodosols from the cold climates and under coniferous forests, from where the concept of podzolization process derived. This order of soils is defined by the Brazilian Soil Classification System (SiBCS) by the presence if a spodic horizon, which must have organic carbon (C org) accumulation in relation to the overlying horizons. To highlight the importance of the preservation of these soils due to their storage of carbon in subsurface, among other reasons related to the flora and fauna they support, the objective of this work was to estimate the organic carbon stock (Ec) of spodic horizons in Brazil. From an extensive bibliographical search, 38 profiles identified as Spodosols according to the SiBCS were selected, and the C org in g kg-1, bulk density (Ds) in Mg m-3 and thickness (E) in cm of the spodic sub-horizons data was organized in a spread sheet for evaluation of descriptive statistics

Publication year: 2019

Types of publication: Abstract in annals or event proceedings

Unit: Embrapa Soils

Keywords: Carbono, Espodossolo, Estoque de carbono no solo, SiBCS, Spodosols