HR: 1330h
AN: H13A-04    [Abstracts]
TI: Concentrated Flow through a Riparian Buffer: A Case Study
AU: * Young, C B
EM: cbyoung@ku.edu
AF: University of Kansas, CEAE Department 1530 W. 15th St., Lawrence, KS 66045 United States
AU: Nogues, J P
EM: jnogues@stanfordalumni.org
AF: University of Kansas, CEAE Department 1530 W. 15th St., Lawrence, KS 66045 United States
AU: Hutchinson, S L
EM: sllhutch@ksu.edu
AF: Kansas State University, Biological and Agricultural Engineering, Manhattan, KS 66506 United States
AB: Riparian buffers are often used for in-situ treatment of agricultural runoff. Although the benefits of riparian buffers are well recongized, concentration of flow can restrict the efficiency of contaminant removal. This study evaluates flow concentration at a agricultural site near Manhattan, Kansas. Manual and automated GIS analyses of a high-resolution digital elevation model were used to determine the fraction of runoff contributing to each buffer segment. Subsequent simulation of the system in WEPP (Water Erosion and Prediction Project) demonstrates the extent to which flow concentration affects buffer efficiency. Recommendations are presented for the design of adaptive-width buffers.
DE: 1815 Erosion and sedimentation
DE: 1871 Surface water quality
DE: 1894 Instruments and techniques
SC: Hydrology [H]
MN: 2005 Joint Assembly