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Soil Conservation

Soil Conservation. EQ: Why is soil a valuable resource?. The Value of Soil. Everything that lives on land depends on soil either directly or indirectly Fertile soil is valuable because it is limited in supply Less than 1/8 of the Earth’s soil is suitable for farming.

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Soil Conservation

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  1. Soil Conservation EQ: Why is soil a valuable resource?

  2. The Value of Soil • Everything that lives on land depends on soil either directly or indirectly • Fertile soil is valuable because it is limited in supply • Less than 1/8 of the Earth’s soil is suitable for farming EQ: Why is soil a valuable resource?

  3. Soil Damage and Loss • Soil Loss • Over farmed by the same crops • Erosion by wind and water • Loss of plant cover EQ: Why is soil a valuable resource?

  4. George Washington Carver • Scientist from the early 1900’s, Alabama • Developed new crops and farming methods that helped restore farming fertility to the South • Planted peanuts in cotton fields to replace soil nutrients EQ: Why is soil a valuable resource?

  5. EQ: Why is soil a valuable resource? Dust Bowl 1930 - 1938 Cause- plowing removed prairie grass from the Great Plains and exposed the soil Then a drought occurred turning the topsoil to dust Wind started blowing soil across the country

  6. Soil Conservation • Soil Conservation – management of soil to prevent its destruction • Ways to conserve soil • Contour plowing – plowing land along curves of a slope; slows runoff and prevents soil from washing away • Conservation Plowing – disturbs the soil and plant cover as little as possible; leave dead weeds and stalks in ground to help return nutrients to the soil • Planting wind screens EQ: Why is soil a valuable resource?

  7. Class Work and Homework Fill In What did I learn Confused Say Read pages G 57 – G 60, questions 1-4 Documentary EQ: Why is soil a valuable resource?

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