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Presentation Title: The Hydrologic Impact of Antecedent Soil Water Content and Straw Mulch on a Burned Area, Fourmile Canyon Wildfire Near Boulder, Colorado Discipline: Hydrology School: University of Minnesota Morris Presentation Type: Poster Presentation Abstract: The Hydrologic Impact of Antecedent Soil Water Content and Straw Mulch on a Burned Area, Fourmile Canyon Wildfire Near Boulder, Colorado 1 3 2 Carnicle, Melissa, M. , Ahlstrom, Anna K. , Moody, John A. th University of Minnesota Morris and RESESS internship at UNAVCO, 600 East 4 Street, Morris, MN 56267, carn0083@morris.umn.edu; Texas A&M University, Department of Geology & Geophysics, High Alpine and Arctic Research Program (HAARP), College Station, TX 77840 annakahlstrom@gmail.com; U.S. Geological Survey, 3215 Marine St. Suite E-127, Boulder, CO 80303, jamoody@usgs.gov

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On September 6 , 2010, the Fourmile Canyon wildfire started to burn in the foothills of the Rocky Mountains near Boulder, Colorado. Areas burned by wildfires can be expected to have a different hydrologic response to rainfall (as a result of changes in the soil), than before the fire. Boulder County, in an effort to minimize the risk of flash floods in the canyon, aerially applied straw mulch on high-risk areas selected primarily by burn severity and slope (Fourmile Emergency Stabilization Team, 2010). The purpose of this research is to investigate the effects of antecedent soil moisture and impact of straw on the hydrologic response, specifically runoff, of a burned area. Rainfall, runoff, soil water content, and straw runoff were investigated. Straw runoff was defined as the amount of rain that was not absorbed by the straw mulch. Paired plots were used to determine the magnitude of change (in runoff) induced by the addition of straw mulch on the scorched hillside. Volumetric soil water content and storm runoff were measured from two sets of bounded, paired plots (two control and two experimental plots). These plots were calibrated for 35 days starting in June, 2011.

Presenter: Melissa Carnicle Tribe: Oneida Nation of Wisconsin Primary Email: carn0083@morris.umn.edu Biography I am a junior at the University of Minnesota Morris studying Chemistry/Geology/Environmental Science. I am the co-chair of the American Indian Science and Engineering Society club and the student coordinator for the North Star STEM Alliance on campus.

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2011 National Conference Student Research Abstracts  
2011 National Conference Student Research Abstracts  

A comprehensive list of the student research topics that will be presented at the AISES 2011 National Conference

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