11 Terms
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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
Truncated
Earth science; Soil science
Having lost all or part of the upper soil horizon or horizons by soil removal (erosion, excavation, etc. ).
Dumps
Earth science; Soil science
Areas of smooth or uneven accumulations or piles of waste rock or general refuse that without major reclamation are incapable of supporting plants.
Gravity potential
Earth science; Soil science
The amount of work required to raise a body a specified height in a gravity field. Gravity head is expressed as energy per weight and is equal to the distance Z, of a measurement point in the soil ...
Site index
Earth science; Soil science
The height of the dominant and codominant trees (not suppressed during development) at an index age, commonly 25, 50, or 100 years. Used in conjunction with volume tables, site index provides an ...
Manure
Earth science; Soil science
The excreta of animals, with or without an admixture of bedding or litter, fresh or at various stages of further decomposition or composting. In some countries may denote any fertiliser material.
Tactoid
Earth science; Soil science
The colloidal sized aggregates of phyllosilicate clay particles that can form under certain conditions of exchangeable cations and ionic strength.
Plasticity index
Earth science; Soil science
The numerical difference between the liquid and the plastic limit or, synonymously, between the lower plastic limit and the upper plastic limit.
