jordmånsprofil

A jordmånsprofil, or soil profile, is a vertical cross-section of a soil from the surface down to the parent material. It reveals the various layers, known as horizons, that have developed over time through processes of weathering, decomposition, and accumulation. Each horizon has distinct physical, chemical, and biological characteristics that differentiate it from the horizons above and below.

The topmost horizon, often designated as O or A, typically contains organic matter and is where most biological activity occurs. Below this is the subsoil, often labeled B, which may show accumulation of leached materials from the surface. The deepest layer, the C horizon, consists of partially weathered parent material, which is the geological material from which the soil formed. Finally, the R horizon represents the unweathered bedrock.

Studying the jordmånsprofil is crucial for understanding soil properties. It provides insights into a soil's drainage, fertility, water-holding capacity, and suitability for different land uses, such as agriculture, forestry, or construction. The depth, thickness, and characteristics of each horizon are influenced by factors like climate, parent material, topography, organisms, and time. Analyzing these profiles helps in soil classification and land management strategies.