Earth science

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

r-selected

Earth science; Soil science

In ecological theory, that group of organisms in soil that rapidly proliferate in response to an abundance of resources. Analogous to zymogenous microorganisms.

fecal pellets

Earth science; Soil science

Rounded and subrounded aggregates of fecal material produced by the soil fauna.

black soils

Earth science; Soil science

A term used in Canada to describe soils with dark-colored surface horizons of the black (Chernozem) zone; includes Black Earth or Chernozem, Wiesenboden, Solonetz, etc.

saprophyte

Earth science; Soil science

An organism that lives on dead organic material.

orthids

Earth science; Soil science

Previous to 1994 this term was used to indicate Aridisols that have a cambic, calcic, petrocalcic, gypsic, or salic horizon or a duripan but that lack an argillic or natric ...