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

End moraine

Earth science; Soil science

A ridge-like accumulation that is being or was produced at the outer margin of an actively flowing glacier at any given time; a moraine that has been deposited at the outer or lower end of a valley ...

Peclet Number

Earth science; Soil science

A dimensionless parameter, calculated from the product of the pore water velocity and the linear distance travelled divided by the dispersion coefficient, used to describe the shape of a solute ...

Physiosorption

Earth science; Soil science

The process of attachment of non-ionic substances such as polar water molecules, acetic acid molecules, or nucleic acids to clays or to other solid-phase surfaces. The attachment of large molecules ...

Associative dinitrogen fixation

Earth science; Soil science

A close interaction between a free-living diazotrophic organism and a higher plant that results in enhanced dinitrogen fixation rates.

Calciphytes

Earth science; Soil science

Plants that require or tolerate considerable amounts of calcium, or are associated with soils rich in calcium.

Neumann condition

Earth science; Soil science

A boundary condition in which the flux is specified along the boundary.

Cambic horizon

Earth science; Soil science

A mineral soil horizon that has a texture of loamy very fine sand or finer, has soil structure rather than rock structure, contains some weatherable minerals, and is characterised by the alteration ...