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Slip Slidin' Again

CSEF · 2007 Earth & Planetary Sciences

Oren A. Klein · Anderson Valley Junior/Senior High School, Boonville, Mendocino County

Overview

Objectives/Goals The goal of my project was to determine the effect that slope and vegetation have on soil erosion caused by rain. I believe that there will be more erosion in areas with the steepest slope the least vegetation Methods/Materials Ten areas of various slopes and vegetation were identified as test sites. Three methods of testing erosion were chosen. Catch-pits were used to estimate how much soil had been accumulated at a site. Erosion Pins were used to estimate how much soil had been lost from a site. Turbidity readings were used to measure the suspended matter in the water collected. Samples were collected after each one inch of rainfall from each of the ten areas. Nine inches of rain fell during the two months of observation. Results The steepest areas and the loose, non-vegetated areas were the most eroded. Conclusions/Discussion My conclusion is that slope and vegetation play an important role in the way that particular areas erode.

Summary statement

Does slope and vegetation have an effect on soil erosion caused by rain?

Help received

Teachers and mentors helped edit report. Parents helped with board display.

Competition history

  • CSEF 2007 Earth & Planetary Sciences · Entry J0714

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