Agriculture Reference
In-Depth Information
Cline, M.G. 1949. Basic principles of soil classiÝcation.
. 67:81Ï91.
EMBRAPA. 1982. Conceituao sumria de algumas classes de solos recm reconhecidas nos levantamentos
e estudos de correlao do SNLCS. EMBRAPA-SNLCS, Circular Tcnica, 1. Rio de Janeiro, RJ.,
Brazil.
EMBRAPA. 1999. Sistema Brasileiro de ClassiÝcao de Solos. Embrapa: Produo de Informao. Brasilia,
D.F. Rio de Janeiro: Embrapa Solos.
FAO-UNESCO. 1974. Soil Map of the World. 1:5,000,000 legend. Paris: Unesco.
FAO-UNESCO. 1988. Soil Map of the World. Revised Legend, with corrections. World Resources Report 60,
FAO, Rome. Reprinted as Technical Paper, 20, ISRIC, Wageningen, 1994.
FAO/ISRIC/ISSS. 1998. World Reference Base for Soil Resources. World Soil Resources Reports, 84, FAO.
Rome, Italy.
IBGE. 1987. Anurio estatstico do Brasil. Fundao Instituto Brasileiro de GeograÝa e Estatstica. Rio de
Janeiro, RJ, Brasil. Vol. 48, p.20.
Servio Nacional de Levantamento e Conservao de Solos. 1981. Mapa de Solos do Brasil. Escala
1:5.000.000. Empresa Brasileira de Pesquisa Agropecuria-EMBRAPA. Sev. Nac. Lev. Cons. Solos-
SNLCS. Rio de Janeiro, RJ, Brazil.
Soil Survey Staff, USDA. 1960. Soil classiÝcation, A Comprehensive System. 7th Approximation. U.S. Dept.
of Agric. U.S. Government Printing OfÝce, Washington, DC.
Soil Survey Staff, USDA. 1975. Soil Taxonomy. A Basic System of Soil ClassiÝcation for making and
Interpreting Soil Surveys. Agric. Handbook No. 436. U.S. Dept. Agric. Washington, DC.
Soil Survey Staff, USDA. 1999. Soil Taxonomy. A basic system of soil classiÝcation for making and inter-
preting soil surveys. USDA-NRCS, Washington, DC. AH-436.
Thorp, J. and Smith, G.D. 1949. Higher categories of soil classiÝcation: Order, suborder, and great groups.
Soil Sci
Soil Sci
. 67:117Ï126.
