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

Threshold moisture content

Earth science; Soil science

The minimum moisture condition, measured either in terms of moisture content or moisture stress, at which biological activity just becomes measurable.

Talud

Earth science; Soil science

A short, steep slope formed gradually at the downslope margin of a field by deposition against a hedge, a stone wail, or other similar barrier.

Pyroclastics

Earth science; Soil science

A general term applied to detrital volcanic materials that have been explosively or aerially ejected from a volcanic vent.

Water retention

Earth science; Soil science

A property of soil which results from the attraction of the soil matrix for water.

Intergrade

Earth science; Soil science

(i) A taxonomic class at the subgroup level of soil taxonomy having properties typical of the great group of which it is a member and that are characteristic of some class in a higher category (any ...

Overlay

Earth science; Soil science

(i) A transparent sheet giving information to supplement that shown on maps. When the overlay is laid over the map on which it is based, its details will supplement the map. (ii) A tracing of ...

Trace elements

Earth science; Soil science

(i) It is no longer used in SSSA publications in reference to plant nutrition. (ii) In environmental applications it is those elements exclusive of the eight abundant rock-forming elements: oxygen, ...