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Unformatted text preview: • Soil stores water • Soil conducts water to aquifers • Soil provides water to plants • Most soils are above the water table, unsaturated 2 • Some intersect water table 8 Soils - Cycle organic matter and nutrients • Organic matter Æ Humus, CO 2 , water, nutrients, energy • Minerals Æ nutrients, new minerals, CO 2 • Toxic materials Æ benign or less toxic – “bioremediation” 9 Soils - Habitat for many organisms • Plants (roots, seeds, rhizomes, bulbs, etc.) • Animals • Microorganisms • Soil provides substrate, air, water, nutrients 10 Animals in soil 11 Soils - Engineering medium, subject to manipulation • Soil can be manipulated, moved • Soils as building materials 12 Large and small scale engineering...
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This note was uploaded on 04/03/2008 for the course SS 121 taught by Professor Staff during the Winter '07 term at Cal Poly.
- Winter '07