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Cumulative Interactions for Military Vehicle Impact Assessment

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010  1008489.(doi:10.13031/2013.35790)
Authors:   Daniel J Koch, George Z Gertner, Niels G Svendsen, Heidi R Howard, David A Horner, Patricia M Sullivan
Keywords:   Military vehicle impacts, land management, Clegg, cone penetrometer, soil strength, biomass

Military vehicle impacts must be understood in order to minimize the erosion risks associated with military training exercises. While these risks are influenced by many factors, understanding the cumulative interactions between soil strength, soil moisture content, and vegetative cover is vital. Due to the large size and variability of military training lands, the ability to measure these factors quickly and accurately is required. To investigate these interactions and the capability of different instruments to measure them, five vegetative treatments were applied to fifteen plots. Within these plots, soil strength parameters were measured using a drop cone penetrometer, soil cone penetrometer, and Clegg impact soil tester. Surface and subsurface biomass were collected and weighed monthly. This paper discusses correlations between soil strength measurement techniques and investigates the relationship between soil moisture and strength. It also investigates the change in soil strength as vegetation matures and its implications in predicting military vehicle impacts.

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