CSES 2040 Lecture 1: CSES 2040 - 1:11:17
11 Jan 2017
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Document Summary
Growth medium holds water and nutrients for plants physical support of plants ventilation (air) moderates temperature detoxi es substances or microbes. C, o, h, n, p, k, ca, mg, s, o. Mn, b, fe, zn, cu, cl, co, ni, mo. Engineering medium support for roads and buildings soils can very in bearing strength, compressibility, shear strength, stability, etc. instability can cause buckling of roads, cracks in foundation. Habitat for organisms range of micro-habitats depend on oxygen availability, ph, temperature, water availability, etc. Water puri cation soil binds and detoxi es pollutants from runoff and rain. Humus the decomposition of leaves and other organic material; the organic component of the soil. Ironstone (rock) -> feooh (mineral) -> fe (element) Synthetic formation of minerals and organic components aggregation = Soil aggregates are groups of soil particles that bind to each other more strongly than to adjacent particles.
