42 Terms
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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
Glaciers
Earth science; Soil science
Large masses of ice that formed, in part, on land by the compaction and recrystallization of snow. They may be moving downslope or outward in all directions because of the stress of their own weight ...
Ultisols
Earth science; Soil science
Mineral soils that have an argillic horizon with a base saturation of <35% when measured at pH 8. 2. Ultisols have a mean annual soil temperature of 8°C or higher. (An order in the U. S. system of ...
Hydromorphic soils
Earth science; Soil science
A suborder of intrazonal soils, consisting of seven great soil groups, all formed under conditions of poor drainage in marshes, swamps, seepage areas, or flats.
Direct counts
Earth science; Soil science
In soil microbiology, a method of estimating the total number of microorganisms in a given mass of soil by direct microscopic examination.
Plagioclase feldspar
Earth science; Soil science
Framework silicates with Al substituting for Si with accompanying Na and/or Ca.
Hypoxic
Earth science; Soil science
Insufficient availability of oxygen in an environment to support aerobic respiration.
Particle size analysis
Earth science; Soil science
Determination of the various amounts of the different soil separates in a soil sample, usually by sedimentation, sieving, micrometry, or combinations of these methods.
