PPT-UNIT 3 SOIL EROSION APARAJITA MUKHERJEE

THK JAIN COLLEGE WHAT IS SOIL EROSION Soil erosion is a type of soil degradation in which there is wearing away or displacement of the upper layer of soil topsoil Soil erosion is a global threat in the current world scenario. 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. Anticipated Problem: . What is soil erosion?. I. . Soil erosion . is the process by which soil is moved. When soil is eroded, it may become pollution in the water or air. The land where it came from, loses fertility. Vegetation and other coverings help prevent soil erosion. . 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.. formation of landforms. weathering and erosion. The process of weathering and erosion are the main forces behind landscape types. . However, they are not the only reason for a plain, plateau, or a mountain region to form. . Ms. Martel. Weathering. Weathering is the breakup of rock due to exposure to processes that occur at Earth’s surface.. Geologists group weathering processes under two headings, mechanical and chemical weathering. . erosion is the process by which the products of weathering are transported. agents of erosion are gravity, wind, glaciers, water, ocean waves, currents streams, groundwater. What is erosion?. What is Soil Erosion?. By the end of this section you will be able..... To name and explain the causes of soil erosion.. Describe in detail how human activities can cause soil erosion.. Name and explain the primary methods of soil conservation.. 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. On a notecard:. Identify units of erosion measurement in Figure A. Convert the average erosion rate into mm/yr.. Figure A: Determine which regions in the United States have the highest continental erosion rates . DSE3T : Factor, Processes and Mitigation Soil Erosion Soil is the most precious gift of nature - Prime resource - for food, fodder etc. for food, fodder etc. It is the earth’s fragile covering t weathering and erosion. The process of weathering and erosion are the main forces behind landscape types. . However, they are not the only reason for a plain, plateau, or a mountain region to form. . 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:.