1. The Rainsplash Effect on Varying Slopes Ashley Desmond Dave Brennan December 5, 2001

2. Centennial Woods Burlington, VT

3. Goals : The purpose of our project was to determine the extent which these factors control erosion: - Vegetation - Slope Angle - Precipitation

4. TRENCH SETUP AND SITES

5. METHODS OF SEDIMENT EXTRACTION

6. Site Descriptions Site 1 and site 2 had similar slope angles Site 3 had a dramatically steeper slope than did sites 1 and 2 Site 2 was densely vegetated, sites 1 and 3 were not

7. Sediment Totals and Ratios Site 1: 1.05.42.33 3.76% 8.73% Site 2 : 1.98 1.27.60 8.05% 12.80% Site 3 : 18.62 16.14 7.43 88.19% 4.45% Trial 1 Trial2 Trial3 % of total sediment L.O.I. In (g)

8. SEDIMENT VS. SLOPE ANGLE SEDIMENT vs. SLOPE ANGLE

9. CONCLUSIONS - Rainsplash is the main erosion mechanism - Slope angle is the dominant characteristic effecting quantities of eroded sediment - Vegetation appears to play a minimal role in controlling sediment collection - Precipitation relates to rainsplash, therefore more precipitation leads to more sediment collected