AbstractQuantifying Spatial Position of Wetlands for Stream Habitat Quality Prediction Track: Water Resources Author(s): Stacey L. Stark, Naomi E Detenbeck, Sharon L Batterman A watershed's capacity to store and filter water, and the resulting effects on the hydrologic regime, is a key forcing function for instream processes and community structure. However, methods for describing wetland position have traditionally been qualitative. A geographic information system provided an efficient means of describing wetland connectivity, area, type, and position in 48 low order streams of the western Lake Superior basin by estimating area-weighted hydrologic distance from stream sampling points to wetlands. This information, coupled with estimates of overall wetland extent, will be used to assess the moderating effects of land use characteristics on stream condition. Stacey L. Stark OAO Corp. 6201 Congdon Blvd Duluth, MN 55804 USA Phone: 218-529-5214 Fax: 218-529-5003 E-mail: stark.stacey@epa.gov |