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Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Soil science

permeameter

Earth science; Soil science

A device for confining a sample of soil or porous medium and subjecting it to fluid flow, in order to measure the hydraulic conductivity or intrinsic permeability of the soil or ...

water balance

Earth science; Soil science

A procedure where by water inputs and outputs are accounted for in a given soil leaving a balance called the storage.

hysteresis

Earth science; Soil science

A nonunique relationship between two variables, wherein the curves depend on the sequences or starting point used to observe the variables. Examples include the relationships: ...

Bog soil

Earth science; Soil science

A great soil group of the intrazonal order and hydromorphic suborder. Includes muck and peat.

mesic

Earth science; Soil science

A soil temperature regime that has mean annual soil temperatures of 8°C or more but 5°C difference between mean summer and mean winter soil temperatures at 50 cm below the ...

light soil

Earth science; Soil science

A coarse-textured soil; a soil with a low drawbar pull and hence easy to cultivate.

frigid

Earth science; Soil science

A soil temperature regime that has mean annual soil temperatures of >0°C but 5°C difference between mean summer and mean winter soil temperatures at 50 cm below the surface, and ...