Soil science

Soil science

That science dealing with soils as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils per se; and these properties in relation to the use and management of soils.

Industry: Earth science

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Soil science

Activity coefficient

Earth science; Soil science

The ratio between the activity (chemical) and the concentration of a substance in solution. Activity of component n is usually indicated by (n) and concentration by (n).

Interstitial water

Earth science; Soil science

Water held in the interlayer space of phyllosilicate minerals.

Suspension

Earth science; Soil science

The state in which particles of a solid are mixed with a fluid but are not dissolved.

Humults

Earth science; Soil science

Ultisols that have a high content of organic carbon. Humults are not saturated with water for periods long enough to limit their use for most crops.

Biological interchange

Earth science; Soil science

The interchange of elements between organic and inorganic states in a soil or other substrate through the action of living organisms. It results from the biological decomposition of organic ...

Validation

Earth science; Soil science

The process of comparing model simultations to observed responses of the real world system, that is , comparing predictions to observations. In the strictest sense, validation involves comparison of ...

Anaerobic respiration

Earth science; Soil science

The metabolic process whereby electrons are transferred from a reduced compound (usually organic) to an inorganic acceptor molecule other than oxygen. The most common acceptors are carbonate, ...