Paper No. J05125 of the Journal of the American Water Resources Association (JAWRA).
Relative Influence of Streamflows in Assessing Temporal Variability in Stream Habitat1
Article first published online: 7 MAY 2007
JAWRA Journal of the American Water Resources Association
Volume 43, Issue 3, pages 642–650, June 2007
How to Cite
Goldstein, R. M., Meador, M. R. and Ruhl, K. E. (2007), Relative Influence of Streamflows in Assessing Temporal Variability in Stream Habitat. JAWRA Journal of the American Water Resources Association, 43: 642–650. doi: 10.1111/j.1752-1688.2007.00051.x
- Issue published online: 7 MAY 2007
- Article first published online: 7 MAY 2007
- Received August 24, 2005; accepted August 10, 2006.
- environmental indicators;
- urban areas
Abstract: The effects of streamflows on temporal variation in stream habitat were analyzed from the data collected 6-11 years apart at 38 sites across the United States. Multiple linear regression was used to assess the variation in habitat caused by streamflow at the time of sampling and high flows between sampling. In addition to flow variables, the model also contained geomorphic and land use factors. The regression model was statistically significant (p < 0.05; R2 = 0.31-0.46) for 5 of 14 habitat variables: mean wetted stream depth, mean bankfull depth, mean wetted stream width, coefficient of variation of wetted stream width, and the percent frequency of bank erosion. High flows between samples accounted for about 16% of the total variation in the frequency of bank erosion. Streamflow at the time of sampling was the main source of variation in mean stream depth and contributed to the variation in mean stream width and the frequency of bank erosion. Urban land use (population change) accounted for over 20% of the total variation in mean bankfull depth, 15% of the total variation in the coefficient of variation of stream width, and about 10% of the variation in mean stream width.