Definition

1. Noun:
   • A vertical section of soil from the ground surface to the parent rock: A soil profile is a two-dimensional view of the layers of soil, showing their sequence, depth, and characteristics. It is a fundamental concept in soil science for understanding soil formation, classification, and properties.

Examples of Usage

• Noun:
  • The geologist dug a pit to examine the soil profile.
  • A typical soil profile reveals distinct layers called horizons.
  • The color and texture change dramatically through the soil profile.

Advanced Usage

• "To expose a soil profile": To reveal the vertical sequence of soil layers, often by digging.
  • The road construction exposed a clear soil profile for study.
• "Profile description": The detailed documentation of a soil profile's characteristics.
  • Her profile description included notes on horizon thickness, color, and structure.

Variants and Related Words

• Soil horizon (n): A distinct layer within a soil profile, such as the O, A, B, or C horizon.
  • The A horizon, or topsoil, is the most biologically active layer in the profile.
• Pedon (n): The smallest three-dimensional unit of soil that represents a soil profile.
  • A soil scientist samples a pedon to represent the local soil profile.

Synonyms

• Soil cross-section: A vertical cut through the soil layers.
• Pedologic profile: A technical term for a soil profile, emphasizing the science of pedology (soil study).

Related Terms and Concepts

• Parent material: The underlying geological material from which soil horizons form.
  • The soil profile showed how the horizons developed from the granite parent material.
• Weathering: The process that breaks down rock and contributes to soil formation, visible in a profile.
  • The degree of weathering increases from the bottom to the top of the soil profile.

Noun

1. a vertical section of soil from the ground surface to the parent rock