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

Oven-dry soil

Earth science; Soil science

Soil that has been dried at 105°C until it reaches constant mass.

Pedal

Earth science; Soil science

Applied to soil materials, most of which consists of peds.

Exudate root

Earth science; Soil science

Low molecular weight metabolites that enter the soil from plant roots.

Organic soil materials

Earth science; Soil science

Soil materials that are saturated with water and have 174 g kg-1 or more organic carbon if the mineral fraction has 500 g kg-1 or more clay, or 116 g kg-1 organic carbon if the mineral fraction has ...

Ustalfs

Earth science; Soil science

Alfisols that have an ustic soil moisture regime and mesic or warmer soil temperature regimes. Ustalfs are brownish or reddish throughout and are not saturated with water for periods long enough to ...

Colluvial

Earth science; Soil science

Pertaining to material or processes associated with transportation and/or deposition by mass movement (direct gravitational action) and local, unconcentrated runoff on side slopes and/or at the base ...

Dissection

Earth science; Soil science

Fluvial erosion of a land surface or landform by the cutting of gullies, arroyos, canyons, or valleys leaving ridges, hills, mountains or flat-topped remnants separated by drainageways.