Soil Genesis and Classification

Flashcards covering key terms and concepts related to soil genesis, characteristics, classification, and wetland types.

Soil Genesis

The process of soil formation influenced by various factors such as climate, organisms, relief, parent materials, and time.

Parent Material

The underlying geological material from which soil develops.

Eluviation

The process of leaching or washing out materials from the soil, usually occurring in the A horizon.

Pedogenesis

The formation of soil through physical, chemical, and biological processes.

Munsell Colour Chart

A standardized chart used to describe the color of soil by hue and chroma.

Soil Horizons

Layers of soil that differ in color, texture, and composition, including A (topsoil), B (subsoil), and C (parent material) horizons.

Glacio-fluvial

Referring to materials or processes involving the deposits created by meltwater from glaciers.

Hydrophytic Vegetation

Plants that thrive in watery or wet conditions, essential for wetland identification.

Gleysolic Soil

Soil formed in conditions of prolonged saturation, characterized by reduced iron and gray or blue colors due to anaerobic conditions.

Podzolic Horizon

A soil horizon typically rich in aluminum and iron oxides, often found beneath the surface horizon in acid soils.

Regosolic Soil

Soil that develops on recently exposed or unstable parent material, lacking well-defined horizons.

Catena Concept

A sequence of soils on a slope that differ due to variations in drainage and position, all formed under the same climate.

Soil Drainage Classes

Categories that indicate how well-soil drains; includes well-drained, moderately drained, and poorly drained.

Anthroposolic

Soils modified significantly by human activity, with distinct layers indicating disturbance.

Landform Classification

The categorization of landforms based on their characteristics and the soils that form on them.

Soil Mapping

The process of identifying, classifying, and displaying soils on a map using defined map units.

Organic Matter (OM)

Decayed plant and animal residues that contribute to soil fertility and structure.

Cryosolic Soil

Soils that contain permafrost and are influenced by cold climate conditions.

Fens

Wetlands characterized by nutrient-rich conditions and fluctuating water levels, supporting varied vegetation.

Soil Classification

The systematic categorization of soils based on their properties, such as horizon depth, texture, and content.