Mitigation of soil erosion

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Presentation transcript:

Mitigation of soil erosion Bethany J. Shepler

Soil erosion Causes Factors Water transport – rivers, rainfall, groundwater, oceanic processes, glaciers Wind transport Mass land movements - landslides Anthropogenic factors Climate change Vegetation Tectonics Topography

Terraces Forms “steps” in steep slopes Plant crops and other agriculture on terraces

Vegetation Root systems of plants helps to stabilize slopes

Changes to crops STRIP CROPPING CROP ROTATION Used when field has a steep slope Mitigate runoff of top soil Increases soil fertility and crop yeild Reduces soil erosion

Conservation tillage Reduces exposed soil Decreases likelihood of water runoff

matting Stabilize soil Plants can grow through the matting Common in residential use

Bibliography https://www.theguardian.com/travel/2014/sep/06/machu-picchu-inca-trail-peru https://teeic.indianaffairs.gov/er/biomass/mitigation/geo/index.htm https://en.wikipedia.org/wiki/Erosion http://www.omafra.gov.on.ca/english/engineer/facts/12-053.htm http://www.landscapeplanet.com/maintenance-1-soil-erosion-prevention.htm http://www.dec.ny.gov/permits/50534.html https://en.wikipedia.org/wiki/Strip_farming https://en.wikipedia.org/wiki/Crop_rotation http://lifeofplant.blogspot.co.za/2011_01_01_archive.html http://galleryhip.com/crop-rotation.html https://www.extension.purdue.edu/extmedia/CT/CT-1.html http://www.methodfinder.net/principles91.html http://www.exactasales.com/index.php/construction-products/geojute