A scientist who studies soil as a component of natural and man-made systems.

The subdiscipline of soil science that deals with the systematic categorization of soils based on distinguishing characteristics developed during soil genesis as well as criteria that dictate choices in land use and soil management.

The sub-discipline of soil science that studies the physical properties of the soil, with particular emphasis on soil moisture potential, water movement and solute transport.

The subdiscipline of soil science that studies the functions and activities of soil-based microorganisms.

The subdiscipline of soil science that studies the solid inorganic phases controlling physicochemical processes in soils and sediments.

Protection of the soil against sediment loss by erosion or fertility loss due to degradation. / A combination of all soil management and land use methods that protect against degradation.

(geology) A soil containing clay minerals that absorb water and swell, causing bumps across terrain.

plural of desert soil

A soil variety typically found in arid climates, usually with little leaching and minimal humus content. Referred to as an "aridisol" in the nomenclature of the United States Department of Agriculture's Natural Resources Conservation Service.

The application of mechanics (especially fluid mechanics) to soils, especially as a basis for the design and construction of building foundations and earthworks.