Soil Profile Diagram: Understanding Soil Horizons and Layers #264837 (License: Personal Use)

The diagram displays a cross-section of soil with labeled horizons: the surface horizon (A), subsoil (B), substratum (C), organic layer (O), eluviation layer (E), and hard bedrock (R). Each layer is annotated with depth markers (0-48 inches) and notes on composition and function, such as mineral loss in the E horizon or burial potential of the O horizon.

Used in educational contexts-science textbooks, agronomy resources, environmental science websites-to teach soil formation, geology, and land management. Matches user intent for learning basic soil structure or preparing teaching materials.