Chapter

Soil Subhorizons and Diagnostic Features

From Introduction to Soil Science by Amber Anderson and Rivka Fidel

Concepts

1. Diagnostic Horizons

   "A diagnostic horizon is a soil layer whose properties meet criteria used for classification. An epipedon is one or more contiguous surface layers with shared features, while an endopedon is one or mo

2. Common Diagnostic

   "Common diagnostic epipedons include mollic, umbric, histic, anthropic, and ochric horizons. Common subsurface diagnostic features include argillic clay accumulation, albic leaching, calcic calcium ac