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

Biological availability

Earth science; Soil science

That portion of a chemical compound or element that can be taken up readily by living organisms.

Fabric

Earth science; Soil science

The physical constitution of soil material as expressed by the spatial arrangement of the solid particles and associated voids.

Soil alkalinity

Earth science; Soil science

The degree or intensity of alkalinity in a soil, expressed by a value >7. 0 for the soil pH.

First bottom

Earth science; Soil science

The lowest and most frequently flooded part of the flood plain of a stream.

Aquods

Earth science; Soil science

Spodosols that are saturated with water for periods long enough to limit their use for most crops other than pasture or woodland unless they are artificially drained. Aquods may have a histic ...

Exchangeable cation percentage (ECP)

Earth science; Soil science

The extent to which the adsorption complex of a soil is occupied by a particular cation. It is expressed as: ECP = ((exchangeable cation (cm kg-1 soil))/(cation exchange capacity (cm kg-1 ...