is a subdivision of the zonal soil order
comprising a large group of soils
in which sesquioxides
increase relative to silica
during soil formation
. Pedalfers usually occur in humid areas. It is not used in the current United States
system of soil classification
but the term commonly shows up in college geology
Pedalfers have three subdivisions of which one is Lateritic soils.
Pedalfer is a formative element in the United States soil taxonomic system for the Alfisols soil order. Alf is the formative element in the Alfisol name, and refers to aluminium (Al) and iron (Fe).
References Baldwin, M.
; C.E. Kellogg, and J. Thorp (1938). Soils and Men: Yearbook of Agriculture 1938
. U.S. Government Printing Office, Washington, D.C..
Brevik, Eric C. (2002). "Soil Classification in Geology Textbooks
". Journal of Geoscience Education
50 (5): 539–543. Retrieved on 2006-04-06.
(2004). Essentials of Geology
. (First Edition), W. W. Norton & Company, Inc.. ISBN 0-393-92411-4.