Keys to Soil Taxonomy

In collaboration with United States Department of Agriculture, Natural Resources Conservation Service, we have reproduced Keys to Soil Taxonomy, Eighth Edition, 1998 in a searchable format. The information for each Soil Order, Great Group and Subgroup in embedded within the key for the whole system.

Some chapters in the beginning and the end of the book have also been reproduced in HTML format. The pop up glossary at each category contains information from Chapters 1, 2, 3, 17, and 18, and is arranged in the same format as the print version. The search field within the pop up glossary can also extract information from the above mentioned chapters.

Chapter 1	The Soils That We Classify
Chapter 2	Differentiae for Mineral Soils and Organic Soils
Chapter 3	Horizons and Characteristics Diagonostic for the Higher Categories
Chapter 4	Identification of the Taxonomic Class of a Soil
Chapters 5 - 16	The Key to Soil Orders, Suborders, Great Groups, and Subgroups is accessible on-line and is enriched with information from Chapters 5 thru 16. Browse thru the heirarchy for detailed information, or use this Search for Subgroup. Type in a partial or full name of a soil Subgroup to get detailed infomation about it.
Chapter 17	Family and Series Differentiae and Names
Chapter 18	Designations for Horizons and Layers
Master Horizons	List of Master Horizons, and their meanings.
Suffixes	List of Suffixes, and their meanings.

Citation:
Primary Source: United States Department of Agriculture, Natural Resources Conservation Service. 1998. Keys to Soil Taxonomy, Eighth Edition. Soil Survey Staff.

Online Source: Pedosphere.com. 2002. Searchable Keys to Soil Taxonomy, Eighth Edition [Online WWW]. Available URL: http://www.pedosphere.com/resources/sg_usa/ [cite access date].