-
Oxisols are a soil
order in USDA soil taxonomy, best
known for
their occurrence in
tropical rain
forest within 25
degrees north and
south of the Equator...
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hardwood forests with very
thick A horizons. They are 7% of
soils worldwide.
Oxisol – are
heavily weathered, are rich in iron and
aluminum oxides (sesquioxides)...
- savanna) have
become exposed to
increasingly arid
climates which cause former oxisols,
ultisols or even
alfisols to dry out in such a
manner that a very hard...
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paleopedological record ever
since the Silurian; however,
unlike other soil
orders (
oxisol, ultisol, gelisol, etc) they do not have
value as
indicators of climate...
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concentration of iron and
aluminium oxides by the
laterization process gives the
oxisols a
bright red
colour and
sometimes produces mineral deposits such as bauxite...
-
weathered tropical soils, with high
levels of iron and
aluminium oxides (
oxisol) and mercury, and they
contain high
levels of
natural radioactivity, with...
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acidic to
neutral (pH 3.6–7.4) and
either a Histosol, Mollisol, Podsol,
Oxisol, Ultisol, or Alfisol.
Rainfall of 1,000–3,000 mm (39–118 in) per year is...
- viz. Entisols, Inceptisols, Mollisols, Spodosols, Alfisols, Ultisols,
Oxisols, Aridisols, Vertisols,
Andisols and Histosols.
Depending on the agricultural...
- well-drained mollisols,
through heavy cracking vertisols,
infertile acid
oxisols and ultisols,
peaty histosols, to
rocky andisols. Both
plentiful sunshine...
-
Eduardo S.; Rowell,
David L. (1996). "Mineral and
organic fractions of two
oxisols and
their influence on
effective cation-exchange capacity". Soil Science...
