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A Procedure for Assigning Management Categories to Urbanizing Watersheds

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

Citation:  Paper number  701P0904,  . (doi: 10.13031/2013.17405)
Authors:   Dipmani Kumar
Keywords:   Urban watersheds, management categories, stream biological quality, imperviousness, regression

In the development of a watershed plan, it is useful to classify subwatersheds into a number of management categories based on the potential quality of streams in the subwatersheds. In this paper, a procedure for classifying subwatersheds into different management categories is suggested. The procedure is based on estimating the ultimate imperviousness of subwatersheds and establishing a statistical relationship between imperviousness and the quality of streams. The procedure is illustrated using biological stream quality data from Fairfax County, Virginia. The results of applying the procedure to classify subwatersheds in Fairfax County as protection, critical, or restoration, based on the predicted ultimate imperviousness of the subwatersheds, are also presented.

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