Agronomy and Horticulture Department
Soil Genesis and Development, Lesson 5 - Soil Classification and Geography
Date of this Version
2009
Document Type
Article
Citation
Plant and Soil Sciences eLibrary (PASSeL) Lesson
Abstract
This lesson discusses the characteristics of the 12 soil orders defined by the USDA soil classification system, the major factors involved with their formation, and their geographic distribution across the USA and the world.
Modules:
- Lesson home
- 5.0 - Introduction
- 5.1 - USDA Soil Classification System
- 5.2 - Soil Orders
- 5.3 - Entisols
- 5.4 - Inceptisols
- 5.5 - Aridisols
- 5.6 - Mollisols
- 5.7 - Alfisols
- 5.8 - Spodosols
- 5.9 - Ultisols
- 5.10 - Oxisols
- 5.11 - Andisols
- 5.12 - Gelisols
- 5.13 - Histosols
- 5.14 - Vertisols
- 5.15 - Capstone Questions for Lesson 5 and Soil Region Resources
- 5.16 - Credits, Tips, and References
- Glossary
COinS
Comments
Copyright © 2019 Plant and Soil Sciences eLibrary. Used by permission.
JNRLSE approved 2009
This lesson was developed by Martha Mamo, Timothy Kettler, and Dennis McCallister at the University of Nebraska–Lincoln; Jim Ippolito, Research Soil Scientist, USDA-ARS-NWISRL, Kimberly, Idaho, formerly at Colorado State University; Ron Reuter at Oregon State University; Christoph Geiss at Trinity College–Connecticut; and William Zanner at the University of Minnesota. Development of this lesson was supported by the National Science Foundation Course, Curriculum, and Laboratory Improvement Program (NSF-CCLI), Award Number DUE-0042603. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of NSF.