AbstractRapid River Classification Using GIS-Delineated Functional Process Zones Track: Environmental Management Author Traditional classification of rivers does not take into consideration how rivers function within the ecosystem. Using factors, such as hydrology and geomorphology, that directly affect ecosystem structure and function provides a means of classifying river systems into hydrogeomorphically-distinct river segments, or functional process zones, with unique community structure and ecosystem functions. In support of this river classification approach, we developed a GIS-based methodology that provides a consistent and efficient way to extract the necessary hydrogeomorphic variables from readily available data sources across different scales and river systems. The extracted variables were analyzed statistically to identify functional process zones within a river system with similar geological histories, hydrology, and sediment regimes. Identification of these functional process zones provides a means for rapid river classification and improved reference site selection, condition assessment, and ecosystem services evaluations. Ellen Damico Dynamac Corp c/o US EPA 26 West Martin Luther King Dr. Mail code: DYN5 Cincinnati, Ohio 45268 United States Phone: 513-569-7167 E-mail: damico.ellen@epa.gov Bradley Williams University of Kansas Kansas Biological Survey 2101 Constant Ave Lawrence, Kansas 66047 United States Phone: 501-605-7383 E-mail: BW0051@ku.edu Jude Kastens University of Kansas Kansas Biological Survey 2101 Constant Ave Lawrence, Kansas 66047 United States Phone: 785-864-1519 E-mail: jkastens@ku.edu Joseph Flotemersch US EPA NERL 26 W. Martin Luther King Dr. Cincinnati, Ohio 45268 United States Phone: 513-569-7086 E-mail: flotemersch.joseph@epa.gov James Thorp University of Kansas Kansas Biological Survey 2101 Constant Ave Lawrence, Kansas 66047 United States Phone: 785-864-1532 E-mail: thorp@ku.edu |