Application of Rosgen's BANCS model for NE Kansas and the development of predictive streambank erosion curves

dc.citation.doidoi:10.1111 ⁄ j.1752-1688.2012.00644.xen_US
dc.citation.jtitleJournal of the American Water Resources Associationen_US
dc.contributor.authorSass, Christopher K.
dc.contributor.authorKeane, Timothy D.
dc.contributor.authoreidwhisker, csassen_US
dc.description.abstractSedimentation of waterways and reservoirs directly related to streambank erosion threatens freshwater supply. This study sought to provide a tool that accurately predicts annual streambank erosion rates in NE Kansas. Rosgen (2001, 2006) methods were employed and 18 study banks were measured and monitored from 2007 through 2010 (May-June). Bank profiles were overlaid to calculate toe pin area change due to erosional processes. Streambanks experienced varied erosion rates from similar Bank Erosion Hazard Index (BEHI)-Near Bank Stress (NBS) combinations producing R[superscript]2 values of 0.77 High-Very High BEHI rating and 0.75 Moderate BEHI rating regarding predictive erosion curves for NE Kansas. Moderate ratings demonstrated higher erosion rates than High-Very High ratings and BEHI trend lines intersected at lower NBS ratings, suggesting a discrepancy in the fit of the model to conditions in the NE Kansas region. BEHI model factors were evaluated and assessed for additional influences exerted in the region. Woody vegetation adjacent to the stream seemed to provide the most variation in erosion rates. This study's findings allowed us to calibrate and modify the existing BEHI model according to woody vegetation occurrence levels along streambanks with high clay content. Modifications regarding vegetation occurrence of the BEHI model was completed and the results of these modifications generated new curves resulting in R[superscript]2 values of 0.84 High-Very High BEHI and 0.88 Moderate BEHI ratings.en_US
dc.relation.uri 1688.2012.00644.x/fullen_US
dc.rightsAcknowledgement of the Journal of the American Water Resources Association, the American Water Resources Association and Blackwell Publishing. The definitive version is available at www.blackwell-synergy.comen_US
dc.subjectErosion predictionen_US
dc.subjectBANCS modelen_US
dc.subjectStreambank vegetationen_US
dc.subjectStreambank erosionen_US
dc.titleApplication of Rosgen's BANCS model for NE Kansas and the development of predictive streambank erosion curvesen_US
dc.typeArticle (author version)en_US


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