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GEOG 317 (6)
Lecture

Soil Erosion.docx

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Department
Geography
Course
GEOG 317
Professor
Margaret Schmidt
Semester
Fall

Description
EROSION Soil erosion- detachment and transportation of soil or rock by wind, water, ice or gravity. Impacts on site- loss of productivity, nutrient and organic matter losses in topsoil Impacts off site- sedimentation of water reservoirs and rivers, water treatment plants damaged USLE- universal soil loss equation A or predicted erosion soil loss= RKL SCP Accelerated erosion- when people disturb soil or vegetation by grazing livestock, cutting forests, building roads or construction. More rapid than natural erosion Soil degradation types: surface soil erosion physical degradation- mass wasting, compaction, structure degradation by organic matter loss, subsidense of organic soils chemical degradation- acidification, salinization, alkaliniza
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