University of Idaho College of Agricultural and Life Sciences Plant, Soil & Entomological Sciences Soil & Land Resources
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Andisols

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example 4

Melanudand
Costa Rica

This soil is formed in layers of volcanic ash from the Volcan Turrialba.The dark surface is a good example of a melanic epipedon.The A1 horizon contains 16.4% organic matter by weight. The water content at 1500 kPa ranges from 147% in the A1 horizon to 226% in the Bw horizon.This soil is used locally for production of cilantro and peppers.
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  Examples:
1. Hydrudand landscape
Hawaii
2. Acrudoxic Hydrudand
3. Melanudand landscape
Costa Rica
4. Melanudand
Costa Rica
5. Vitrixerand landscape
northern Idaho
6. Volcanic ash
Mt. Mazama Oregon
7. Typic Vitrixerand
northern Idaho
8. eroded Cryand landscape
Iceland
9. Cryand
Iceland
If you have any comments, suggestions, or questions about the 12 Soil Orders web site,
please contact Dr. Paul McDaniel  at the Soil Science Division,
University of Idaho, Moscow, ID 83844-2339.