Entisols are the second most abundant soil order ( after inceptisols ), occupying about 16 % of the global ice-free land area.
22.
The above soil orders in sequence of increasing degree of development are Entisols, Inceptisols, Aridisols, Mollisols, Alfisols, Spodosols, Ultisols, and Oxisols.
23.
Aside from soil order, pastoral farming is more likely to be found than arable farming in areas with steep slopes, cold strong winds and a wet climate.
24.
The earliest land vegetation is found in early Silurian entisols and inceptisols, and with the growth of land vegetation under a protective ozone layer several new soil orders emerged.
25.
This is because soil formation, after which oxisols take more weathering to form than any other soil order, has been almost non-existent outside eras of extensive continental glaciation.
26.
A wide range of soil fertility exists as evidenced by soil orders-Alfisols and Mollisols which are medium to high in base saturation to Ultisols which are low in base saturation ( 24 ).
27.
In the FAO soil classification, because of the diversity of their properties, suborders of entisols form individual soil orders ( e . g . " fluvisols ", " lithosols " ).
28.
Many Precambrian soils, however, when examined do not fit the characteristics for " any " of these soil orders and have been placed in a new order called "'green clays " '.
29.
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 ).
30.
Entisols have been abundant in the paleopedological record ever since then, though, unlike other soil orders ( oxisols, ultisols, gelisols for instance ) they do not have value as indicators of climate-though orthents might in some cases be indicated of an extremely old landscape with very little soil formation ( as in Australia today ).
