108 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
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Soil science
Thermic
Earth science; Soil science
A soil temperature regime that has mean annual soil temperatures of 15°C or more but 5°C difference between mean summer and mean winter soil temperatures at 50 cm below the surface. Isothermic is ...
Nutrient efficient plant
Earth science; Soil science
A plant that absorbs, translocates, or utilises more of a specific nutrient than another plant under conditions of relatively low nutrient availability in the soil or growing media.
Electrical conductivity (EC)
Earth science; Soil science
1. Conductivity of electricity through water or an extract of soil. Commonly used to estimate the soluble salt content in solution. 2. The ability of the soil to conduct electricity.
Pressure membrane
Earth science; Soil science
A membrane, permeable to water and only very slightly permeable to gas when wet, through which water can escape from a soil sample in response to a pressure gradient.
Siderophore
Earth science; Soil science
A nonporphyrin metabolite secreted by certain microorganisms that forms a highly stable coordination compound with iron. There are two major types: catecholate and hydroxamate.
Lithorelict
Earth science; Soil science
A micromorphological feature derived from the parent rock that can be recognised by its rock structure and fabric.
Hydrograph
Earth science; Soil science
A graph of the flow rate, either surface or subsurface flow, with time.
