SOIL CONSERVATION 2'4

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SOIL CONSERVATION2.4
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TERMS TO LEARN

• Soil conservation the various methods by which
  humans take care of the soil.
• Erosion the process by which wind and water
  transport soil and sediment from one location to
  another.

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WHAT YOU WILL DO

• DESCRIBE THREE IMPORTANT BENEFITS THAT SOIL
  PROVIDES.
• DESCRIBE THREE METHODS OF PREVENTING SOIL EROSION.

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• SOIL DATA FROM ONLINE RESOURCES

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THE IMPORTANCE OF SOIL

• Providing nutrients for producers
• Housing for animals- earthworms, grubs, spiders,
  moles
• Animals help break down plant and animal matter
  to help make humus.
• Holds water - storage

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PREVENTING SOIL EROSION

• Erosion - the process by which wind and water
  transport soil and sediment from one location to
  another.
• Plants are needed
• to stabilize erosion and
• soil is needed to provide
• nutrients to plants.

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PREVENTING SOIL EROSION

• Cover crops a crop that is planted between
  harvests to reduce soil erosion and to replace
  certain nutrients in the soil.
• Crop rotation the practice of changing the type
  of plant grown on a certain field from year to
  year, rotating the crop.

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PREVENTING SOIL EROSION

• Contour plowing practice of planting crops with
  the
• CONTOUR of the
• land which prevents
• run off.

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PREVENTING SOIL EROSION

• Terracing step down farming, creating a
  series of rows to change a steep field into a
  series of smaller flat ones.

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SECTION REVIEW

• 1) Describe three essential benefits that soil
  provides.
• 2) How does crop rotation benefit soil ?
• 3) List three methods of soil conservation and
  describe how each helps to prevent the loss of
  soil.
• 4) Why do all animals, even meat eaters, depend
  on soil to survive ?

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