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Guided Notes about Soils

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Guided Notes about Soils Section 7.3 Soil Is ... soil formation occurs over a long period of time; ... it develops are the main factors that determine a soil s ... – PowerPoint PPT presentation

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Title: Guided Notes about Soils


1
Guided Notes about Soils
  • Section 7.3

2
Soil Is
  • The loose covering of broken rock particles and
    decaying organic matter overlying bedrock.
  • Found almost everywhere on Earth
  • The result of chemical and mechanical weathering
    and biological activity over long periods of time.

3
Residual Soil
  • Residual soil is soil located above its parent
    material. An example is Kentuckys bluegrass
    soil.

4
Transported Soil
  • Transported soil has been moved to a location
    away from its parent material. Agents of
    erosion, such as wind, water, and glaciers can
    move soil from its place of origin to new
    locations.

5
Soil Formation
  • In general, the process of soil formation occurs
    over a long period of time it can take 100 years
    to form one centimeter of soil.

6
Slopes
  • Soils on slopes tend to be thin, coarse, and
    infertile, but soils formed in valleys are thick
    and rich. South-facing slopes have thicker soils
    due to increased vegetation.

7
Climate
  • Soils appearance, rate of formation, and
    productivity are determined to a great extent by
    climate.

8
Soil Color
  • A soils composition and the climate in which it
    develops are the main factors that determine a
    soils color.
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