CSEM 240 Lecture Notes - Lecture 16: Wetting, Tilth, Heavy Equipment
31 Dec 2016
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Document Summary
Soil colors can provide valuable clues to other soil properties and conditions. Munsell color charts are used to describe soil color. To use the chart, a soil sample is compared to a colored chip in the munsell book. Most soil colors are derived from oxides and. Example from munsell 10yr 5/6: 5/ - value organic matter. Soil color can tell much about soil: profile horizons largely based on color, bright colors. Well-drained soils where oxygen is plentiful: gray, bluish, or gray-green colors. Fluctuating water table: many physical and chemical properties of the soil are dependent on soil texture. One of the most commonly performed analyses in soil science. Soil texture the proportions of different sized particles in a soil: coarse fragments anything larger than sand (2mm, sand 2 to 0. 05 mm, silt 0. 05 to 0. 002 mm, clay smaller than 0. 002 mm. Soil texture (size distribution of soil particles: nature of soil separates. Graph the various sizes of particles present.
