470 likes | 588 Views
Soil Science. 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. Note: clays are microscopic in size !. Clay minerals
E N D
Soil Science 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 Note: clays are microscopic in size !
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.
What causes soil erosion? Water Wind No Vegetation
The Great Dust Bowl Wind Erosion
Gully Erosion How did the Canyon Lands of Utah form?
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
Topography Physical land features
What are some practices Of SOIL CONSERVATION? Terracing Strip Cropping Contour Plowing Tilling Wind Breaks Ground Covers
Strip Cropping Contour Plowing
Internet Sites • http://www.tx.nrcs.usda.gov/class/sammy.htm