Estimating Minimum Instream Flow Requirements for Minnesota Streams fromHydrologic Data and Watershed Characteristics

摘要

Minimum instream flow recommendations, identified as the inflection point on thecurve describing the relation between stream discharge and wetted perimeter, were developed for 27 Minnesota streams with mean annual discharges ranging from 41 to 568 cu ft/s. The relation of instream flow recommendations to hydrologic and watershed variables was examined to develop models for rapid assessment. The instream flow recommendation, expressed as a percentage of the mean annual discharge, decreased as stream size increased. (Copyright (c) 1995 American Fisheries Society.)