This research determined the soil erodibility factor for Morley, Blount, and Pewamo soils in Delaware County, Indiana, using simulated rainfall mathods. Five test runs were made on each site and the runoff (water and sediment) from each site was collected. Three sites were used for the research and data were collected from five test plots on each site. The T-test was used to determine if significant differences occur between the erodibiltiy factors of the same soil series. One-way analysis of variance was used to determine if significant. differences occur between Morley, Blount, and Pewamo soils in relation to their erodibility factors.The results indicate there are no significant differences between the erodibiltiy factors of the same soil series for Blount and Pewamo soils to the .05 level of confidence. A significant difference was found within the two Morley soils, but the difference could have been due to experimental error and natural soil variation. While there is no significant difference between erodibility values for the Morley and Blount soils, there is significant difference between the Pewamo soil series and the Morley and Blount soil series.This study demonstrates that the use of the rainulator may be a valid method for deriving erodibility factors, especially on higher slopes. The rainulator, however, may not be appropriate for determining erodibility factors on flat or shallow slopes such as found with the Pewamo soil. More erodibility data need to be collected from the same soil series to determine their soil erodibility factors and to verify the effectiveness of using the rainulator for data collection on flat and shallow soils.Ball State UniversityMuncie, IN 47306
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/182744 |
| Date | 03 June 2011 |
| Creators | Ndukwe, Ernest Amarachukwu |
| Contributors | Sullivan, Patrick J. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | ix, 74 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
| Coverage | n-us-in |
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