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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 
saline-sodic soil
Earth science; Soil science
A soil containing sufficient exchangeable sodium to interfere with the growth of most crop plants and containing appreciable quantities of soluble salts. The exchangeable sodium ...
chemically precipitated phosphorus
Earth science; Soil science
Relatively insoluble phosphorus compounds resulting from reactions of phosphorus with soil constituents: e. g. calcium and magnesium phosphates which are precipitated above a pH ...
textural triangle
Earth science; Soil science
A classification of earth materials with equivalent particle diameters less than 2. 0 mm based solely on particle-size distribution.
mycelium
Earth science; Soil science
A mass of interwoven filamentous hyphae, such as that of the vegetative portion of the thallus of a fungus.
interfluve
Earth science; Soil science
A landform composed of the relatively undissected upland or ridge between two adjacent valleys or drainageways.
diagnostic horizons
Earth science; Soil science
Combinations of specific soil characteristics that are indicative of certain classes of soils. Those which occur at the soil surface are called epipedons, those below the ...
miscellaneous areas
Earth science; Soil science
A kind of land area having little or no soil and thus supporting little or no vegetation without major reclamation. Includes areas such as beaches, dumps, rock outcrop, and ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)