6 Terms
Home > Industry/Domain > Earth science > 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
Add a new termContributors in Soil science
Soil science
Discharge curve
Earth science; Soil science
(i) Rating curve showing the relation between stage and rate of flow of a stream. (ii) Curve showing the relation of discharge of a pump and the speed, power, and head.
Pergelic
Earth science; Soil science
A soil temperature regime that has mean annual soil temperatures of <0°C. Permafrost is present.
Screen
Earth science; Soil science
(i) (wells) A manufactured well casing with precisely dimensioned and shaped openings. (Compare with perforated casing. ) (ii) (canals) A device used to clean surface water of debris, such as ...
Adenylate energy charge ratio (EC)
Earth science; Soil science
A measure of the metabolic and growth state of microorganisms and microbial communities. The energy charge ratio is calculated using the formula: EC = (ATP + 1/2ADP)/(ATP + ADP + AMP). The ...
Tephra
Earth science; Soil science
A collective term for all clastic volcanic materials that are ejected from a vent during an eruption and transported through the air, including ash (volcanic), blocks (volcanic), cinders, lapilli, ...
Blowout
Earth science; Soil science
A hollow or depression of the land surface, which is generally saucer or trough-shaped, formed by wind erosion especially in an area of shifting sand, loose soil, or where vegetation is disturbed or ...
Udic
Earth science; Soil science
A soil moisture regime that is neither dry for as long as 90 cumulative days nor for as long as 60 consecutive days in the 90 days following the summer solstice at periods when the soil temperature ...
