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Soil

TermDefinition
Soil A mixture composed of weathered rocks and decomposed organic material from dead plants, animals, and bacteria
Humus Soil component that is dark in color and is made up of decomposed organic material. Forms from the breakdown of organic remains
Soil Profile A cross-section sample of soil from the bedrock up to the surface. Typically has four main layers, or horizons, in it. (O, A, B, C)
A Horizon Called Topsoil.
B Horizon Called Subsoil
C Horizon Called Parent Material. Rockier than A and B Horizon (topsoil and subsoil)
Permeability A measure of the ability for air and water to pass through soil. Soil's ability to transmit water
Loam Best type of soil for agriculture. Contains a mixture of sand, silt, and clay
Sand Soil component that has a very large grain size, a gritty texture, and does not hold water well
Clay Soil component that has a small grain size, a sticky texture, and can hold water better than any other component
Created by: nwysocki
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