1. Oxisols
Think…

2. Think…
Oxides
Weathered
Tropics

3. Distribution Mainly intertropical Hawaii and Puerto Rico
Hot and humid places
~8% of terrestrial surface
USDA-NRCS

4. Environment
High Weathering – high temperatures, high effective precipitation
Typically Tropical

5. Most Weathered

6. Characteristics Bright Chroma Iron and Aluminum Oxides
Low Activity Clay
Low Fertility

7. 100x Oxisol Soil

8. Diagnostic Horizons
Oxic
Kandic

9. Suborders Aquox - wet Torrox - dry Ustox – seasonally dry
Perox –wet, water permeates
Udox – usually moist

10. Sources: https://www.britannica.com/science/Oxisol
opicorder=11&maxto=14
Soil Science Simplified