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

Terminal velocity

Earth science; Soil science

The equilibrium rate at which a particle falls in water or air.

Sediment yield

Earth science; Soil science

The amount of eroded soil that is delivered to a point in a watershed or transported out of a stream section over a period of time. It includes the contributions of erosion from slopes, channels, ...

Soil pH

Earth science; Soil science

The pH of a solution in equilibrium with soil. It is determined by means of a glass, quinhydrone, or other suitable electrode or indicator at a specified soil-solution ratio in a specified solution, ...

Transmissivity

Earth science; Soil science

The rate at which water moves through a unit cross-sectional area of an aquifer of specified thickness under a unit hydraulic gradient. It is equal to the hydraulic conductivity times the thickness ...

Hyperheic zone

Earth science; Soil science

The shallow layer below a streambed that serves as the hydrologic connexion between the stream and the groundwater thereby controlling the exchange of water and solutes.