Agriculture Reference
In-Depth Information
Figure 11.13
A map of Brazil showing the main distribution of Argissolos.
APPROXIMATE EQUIVALENTS WITH OTHER SYSTEMS
Although the Brazilian system of soil classiÝcation is a national system, there has been a
consistent desire to relate it to international systems to permit easy translations. As there are
differences in deÝnitions and the structure, direct equivalence may not always be possible.
Table 11.2 attempts to provide broad equivalence with Soil Taxonomy and the units of the World
Reference Base.
As evident in Table 11.2, there are direct equivalents for some classes, while others may have
more than one. Vertissolos and Latossolos are examples where all systems have equivalent deÝni-
tions. The exact classiÝcation in any system is best made for a soil based on its unique properties.
Table 11.2
Equivalents of the Order Category in the Brazilian System
Brazilian
System
Soil Taxonomy
World Rreference Base
Organossolos
Histosols
Histosols
Neossolos
Entisols
Fluvisols, Leptosols, Regosols,
Arenosols
Ver tissolos
Vertisols
Vertisols
Espodossolos
Spodosols
Podzols
Alissolos
Ultisols
Acrisols, Alisols
Planossolos
Alfisols, Ultisols, Mollisols, Aridisols
Planosols
Gleissolos
Inceptisols, Ultisols, Mollisols, Alfisols,
Entisols
Fluvisols, Gleysols
Nitossolos
Ultisols, Alfisols
Nitisols
Latossolos
Oxisols
Ferralsols
Chernossolos
Mollisols
Leptosols, Kastanozems, Greyzems,
Chernozems, Phaeozems
Cambissolos
Inceptisols
Cambisols
Plintossolos
Oxisols, Ultisols, Inceptisols, Entisols, Alfisols
Plinthosols
Luvissolos
Alfisols
Luvisols
Argissolos
Ultisols, Alfisols
Acrisols, Lixisols
