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

Humox

Earth science; Soil science

Oxisols that are moist all or most of the time and that have a high organic carbon content within the upper 1 m. Humox have a mean annual soil temperature of <22°C and a base saturation within the ...

Equivalent diameter

Earth science; Soil science

In sedimentation analysis of particle size, the diameter assigned to a nonspherical particle; that is, the diameter of a spherical particle of the same density and velocity of fall. Sometimes ...

Stoniness

Earth science; Soil science

Classes based on the relative proportion of stones at or near the soil surface. Used as a phase distinction in mapping soils.

Depression

Earth science; Soil science

Any relatively sunken part of the Earth's surface; especially a low-lying area surrounded by higher ground. A closed depression has no natural outlet for surface drainage (e.g. a sinkhole). An open ...