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

Dynamic penetrometer

Earth science; Soil science

A penetrometer which is driven into the soil by a hammer or falling weight.

Granule

Earth science; Soil science

A natural soil aggregate or ped of relatively low porosity.

Esker

Earth science; Soil science

A long, narrow, sinuous, steep-sided ridge composed of irregularly stratified sand and gravel that was deposited by a subglacial or supraglacial stream flowing between ice walls, or in an ice tunnel ...

Overburden

Earth science; Soil science

(i) Recently transported and deposited material that occurs immediately superjacent to the surface horizon of a contemporaneous soil. (ii) A term used to designate disturbed or undisturbed material ...

Rendzina

Earth science; Soil science

A great soil group of the intrazonal order and calcimorphic suborder consisting of soils with brown or black friable surface horizons underlain by light grey to pale yellow calcareous material ...

Hygroscopic water

Earth science; Soil science

Water adsorbed by a dry soil from an atmosphere of high relative humidity, water remaining in the soil after "air-drying," or water held by the soil when it is in equilibrium with an atmosphere of a ...

Plate count

Earth science; Soil science

A count of the number of colonies formed on a solid culture medium when inoculated with a small amount of soil. The technique has been used to estimate the number of certain organisms present in the ...