PPT-Soil Erosion

Chad Lentz Why Care Removes valuable topsoil Carries away expensive nutrients Increase tillage costs to fix Creates algae blooms and dead zones due to excess nutrients in waterways Types of Erosion. Soil erosion and sediment control is not a new technology The USDA Soil Conservation Service and a number of State and local agencies have been developing and promoting the use of erosion and sediment control devices for years This chapter provides Methods of soil conservation (ch3). The key aspects discussed in this chapter are:. Windbreaks. Contour ploughing. Stubble planting. Terraces. Stone walls. Reduce farming in dry weather. Windbreaks. Reforestation. in Poland. This project has been funded with support from the European Commission.. This publication reflects the views only of the author, and the . Commision. cannot be held responsible for any use which may be of the information contained therein.. degredation. is…... The decline in quality of and quantity of soil. It includes:. Erosion by wind and water. Biological . degredation. (loss of humus and plant life). Physical . degredation. (loss of structure, change in . How Much is Dirt Worth?. How Much is Dirt Worth?. Soils produce our food. They are essential to our survival.. How Much is Dirt Worth?. Soils produce our food. They are essential to our survival.. Good soils are a limited, nonrenewable resource.. Chapter 7. Section 7.1 Weathering. Weathering is the process by which rocks on or near Earth’s surface break down and change. . Erosion is the removal and transport of weathered material from one location to another.. Essential. . Questions. :. How does human activity affect the soil on the Earth’s surface?. How can humans conserve our soil? . Standards. S6E5i. Explain the effects of human activity on the erosion of the earth’s surface.. another.. 2 . kinds:. 1) . Rill erosion. is the erosion by running water in small channels. , on the side of a slope.. 2) . Gully erosion. is when a rill channel evolves to become deep and wide.. . (“Flow-Assisted”. . or “Flow-Accelerated”. . Corrosion). An increase in corrosion brought about by a high relative velocity between the corrosive environment and the surface.. Removal of the metal may be:. What Is An . Ecoregion. ?. Ecoregion. - . a major ecosystem with distinctive geography, characteristic plants and animals, ecosystems, and receiving uniform solar radiation and moisture . Sometimes called an ecological region or bioregion. . Wided Batita . Ing. , . Ph.D. . Geomatics. . Laval . University. Québec, Canada . 28. th. April 2017. Outline. Statement of the Problem. . Methodology & Theoretical . Orientation. Findings. Weathering. Notes. Weathering. - The surface processes that break down rock into small pieces called sediment. . Two Types of Weathering. MECHANICAL WEATHERING. – . . Physical. processes that break rock into fragments with the . Section 4:. Erosion. Erosion. – transporting weathered material, agents – gravity, wind, glacier, & water. Soil erosion major concern. Soil erodes faster than its made. Land use & climate affect S.E.. Soils. Precipitation. Vegetation. Surface Area. Slope Length. Slope Gradient. Surface Texture. Grayling. January 2022. 3. Factors that Influence Erosion. Goal of this section. :. Be able to name the erosion factors:.