Soils - created from Mind Map

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Soil components

Physical properties of soil

Soild phase

Liquid phase

Gas phase

As a result of weathering activities soils are made up of a number of different particles. Soils particles are classified according to size, which is based on particle diameter

The soil solution contains many elements dissolved in water, resulting in the soil either being acidic or alkaline. The variable composition of the soil causes changes in the soil acidity or alkalinity and the mineral availability.

The main sources of minerals in the soil is the soil solution, the primary minerals released through weathering and the exchangeable ions from clay and organic matter

Parent material

Soil colour

Soil texture

Soil structure

Soil consistence

Soils are often referred to by their colour as this is often the initial observation made about a soil. It is useful feature for the description and identification of a soil.

Soil texture refers to the size of soil particles in a soil, and allows differentitstion

Mechanical Analysis

Texture triangle