lect03-18-10

Uconneduresearchsmodhtml

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Unformatted text preview: stainable Management of Dams http://are.uconn.edu/research/smod.html http://are.uconn.edu/research/request.html Soil & Its Properties soil is a complex mixture of inorganic material (clay, silt, & sand), decaying organic matter, air, water, & living organisms soil can be rich in biological life, including bacteria, fungi, & invertebrates soil develops & matures slowly - it can take 200 to 1,000 years to develop 1 inch of topsoil well developed soils display distinct horizons, or soil profiles Soil Horizons O-horizon (surface litter) - mostly fresh leaves, animal waste, fungi and other organic materials A-horizon (topsoil) - porous mixture of humus (partially decomposed organic matter) and inorganic minerals B-horizon (subsoil) & C-horizon (parent material) mostly inorganic matter, with varying mixture of silt, sand, clay, and gravel O horizon Leaf litter A horizon Topsoil B horizon Subsoil C horizon Parent material...
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