Section 2: Soil Classification and Distribution

These soils lessons help detail how soils are classified and what their patterns of distribution are like worldwide.

Soil Genesis and Development, Lesson 5 - Soil Classification and Geography

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.

Soil Genesis and Development, Lesson 6 - Global Soil Resources and Distribution

This lesson discusses soil resources and functions at the global scale.