Track: Water Resources
Developing Stream-Watershed Relationships for Selecting Reference Site Characteristics Using ArcInfo
Ann YoubergDr. D. Phillip Guertin , Dr. George Ball
Watershed assessment methods used in natural resource management require the selection of stream reference sites for study comparisons. Appropriate reference sites are often difficult to select due to past uses or disturbances. This paper discusses a method for deriving stream-watershed relationships based on field-collected stream data and GIS-derived watershed characteristics. Stream data were collected from five small perennial streams in the Apache-Sitgreaves National Forest, Arizona. Watershed characteristics were derived from USGS DEMs and U.S. Forest Service GIS layers. The stream-watershed relationships were developed using statistical analyses. The relationships were then evaluated for their ability to predict reference site characteristics.
Ann Youberg
University of Arizona
325 Biological Sciences East
Tucson, AZ 85721
USA
Telephone: 520.621.3045
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E-mail: ayouberg@srnr.arizona.edu