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4 th Grade Springville, Utah

Soil Science. 4 th Grade Springville, Utah. Where does soil come from? Rocks Minerals Organic Matter . Sagebrush-Cold Desert. Mollisol Profile. What are the main components of soil?. Mineral Matter Air Water Organic Matter. Soil Particles.

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4 th Grade Springville, Utah

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  1. Soil Science 4th Grade Springville, Utah

  2. Where does soil come from? • Rocks • Minerals • Organic Matter

  3. Sagebrush-Cold Desert Mollisol Profile

  4. What are the main components of soil? • Mineral Matter • Air • Water • Organic Matter

  5. Soil Particles Note: clays are microscopic in size !

  6. Clay minerals photographed with an electron Microscope. Note: they are plate or flake like and are stacked on top of each other. They are electrically charged and act like magnets that attract and hold plant nutrients.

  7. Soil should have aggregates!

  8. Organic matter is soil gold !

  9. What causes soil erosion? Water Wind No Vegetation

  10. My Neighbor has my soil!

  11. Rain drop erosion

  12. The Great Dust Bowl Wind Erosion

  13. The Great Dust Bowl

  14. Clouds of Silt

  15. Wind Erosion removed topsoil

  16. Wind eroded soil

  17. Rill Erosion

  18. Gully Erosion How did the Canyon Lands of Utah form?

  19. Vegetation protects soil

  20. Erosion Prayer

  21. Our lives depend on preserving our topsoils.

  22. Cotton in Furrows

  23. What are the FACTORS that make SOIL? TIME 1000’S TO 10,000’S OF YEARS LAY OF THE LAND TOPOGRAPHY LIVING ORGANISMS ANIMALS AND PLANTS CLIMATE HOT/COLD, WIND/RAIN PARENT MATERIAL ROCKS AND MINERALS

  24. Topography Physical land features

  25. What are some practices Of SOIL CONSERVATION? Terracing Strip Cropping Contour Plowing Tilling Wind Breaks Ground Covers

  26. Strip Cropping Contour Plowing

  27. Contour Farming

  28. Contour Farming

  29. Tilling Soil on flat land

  30. Furrow Irrigation

  31. Minimum Tillage

  32. Strip Cropping

  33. Strip Crop Farming

  34. Soil - We cannot live without it!

  35. Give a hand to the land

  36. Internet Sites • http://www.tx.nrcs.usda.gov/class/sammy.htm

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