Andisols

Authored by: Paul A. McDaniel , David J. Lowe , Olafur Arnalds , Chien-Lu Ping

Handbook of Soil Sciences Properties and Processes

Print publication date:  November  2011
Online publication date:  November  2011

Print ISBN: 9781439803059
eBook ISBN: 9781439803066
Adobe ISBN:

10.1201/b11267-58

 Download Chapter

 

Abstract

Andisols are soils that typically form in loose volcanic ejecta (tephra) such as volcanic ash, cinders, or pumice. They are characterized by andic properties that include physical, chemical, and mineralogical properties that are fundamentally different from those of soils of other orders. These differences resulted in a proposal to recognize these soils at the highest level in the USDA soil classification system (Smith, 1978). In 1990, Andisols were added to Soil Taxonomy as the 11th soil order (Soil Survey Staff, 1990; Parfitt and Clayden, 1991). A very similar taxonomic grouping, Andosols, is 1 of the 32 soil reference groups recognized in the World Reference Base for Soil Resources (IUSS Working Group WRB, 2006). Andisols(and Andosols) are classified on the basis of selected chemical, physical, and mineralogical properties acquired through weathering and not on parent material alone. Both soil names relate to two Japanese words, anshokudo meaning “dark colored soil” (an, dark; shoku, color or tint; do, soil) and ando meaning “dark soil.” Ando was adopted into western soil science literature in 1947 (Simonson, 1979).

 Cite
Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.