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

Viscosity

Earth science; Soil science

Property of a fluid indicating its resistance to movement due to the internal friction in the fluid, as measured by the force per unit area resisting flow.

Exchangeable bases

Earth science; Soil science

Charge sites on the surface of soil particles that can be readily replaces with a salt solution. In most soils, Ca2+, Mg2+, K+ and Na+ predominate. Historically, these are called bases because they ...

Eukaryote

Earth science; Soil science

Cellular organisms having a membrane-bound nucleus within which the genome of the cell is stored as chromosomes composed of DNA; includes algae, fungi, protozoa, plants, and animals.

Psamments

Earth science; Soil science

Entisols that have textures of loamy fine sand or coarser in all parts, have <35% coarse fragments, and that are not saturated with water for periods long enough to limit their use for most crops.

Biotic enzymes

Earth science; Soil science

Enzymes associated with viable proliferating cells located (i) intracellularly in cell protoplasm; (ii) in the periplasmic space; (iii) at the outer cell surfaces.

Peat soil

Earth science; Soil science

An organic soil in which the plant residues are recognizable. The sum of the thicknesses of the organic layers are usually greater than the sum of the thicknesses of the mineral layers.