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

Vermiculite

Earth science; Soil science

A highly charged, averages about 159 cmolckg-1 for soil vermiculites but has a very wide range, layer silicate of the 2:1 type that is formed from mica. It is characterised by adsorption preference ...

Soil sample

Earth science; Soil science

A representative sample taken from an area, a field, or portion of a field from which the physical, biological, and chemical properties can be determined.

Tundra soils

Earth science; Soil science

(i) Soils characteristic of tundra regions. (ii) A zonal great soil group consisting of soils with dark-brown peaty layers over greyish horizons mottled with rust and having continually frozen ...

Darcy's law

Earth science; Soil science

(i) A law describing the rate of flow of water through saturated porous media. (Named for Henry Darcy of Paris, who formulated it in 1856 from extensive work on the flow of water through sand ...

Flume

Earth science; Soil science

(i) Open conduit for conveying water across obstructions. (ii) An entire canal elevated above natural ground. An aqueduct. (iii) A specially calibrated structure for measuring open channel flows.

Soil mineral

Earth science; Soil science

(i) Any mineral that occurs as a part of or in the soil. (ii) A natural inorganic compound with definite physical, chemical, and crystalline properties (within the limits of isomorphism), that ...

Phytomorphic soils

Earth science; Soil science

Well-drained soils of an association which have developed under the dominant influence of the natural vegetation characteristic of a region. The zonal soils of an area.