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- Title
The Effect of Timber Harvest on Summer Low Flows, Hinkle Creek, Oregon.
- Authors
Surfleet, Christopher G.; Skaugset, Arne E.
- Abstract
Changes to summer low flows from forest harvesting were measured for a gauged fourth-order stream in the Hinkle (reek Paired Watershed Study. At the gauged stream, August streamf low increased an average of 1.9 mm/year (45%) for the three summers following forest harvest of 13% of a 1,084 ha watershed. Following a second harvest of an additional 13% of the watershed the August streamf low increased by 4.5 mm (106%) the first summer and 2.0 mm (47%) the second summer. Master recession curves were fit to the gauged watersheds and the resulting recession coefficients were used to predid low flows from small watersheds nested within the gauged watersheds. The estimated low flows were used to evaluate changes in summer low flows associated with forest harvest for the small watersheds. Using recession curve analysis, the estimated range of the increase for average August streomf low for the four small watersheds in the Hinkle Creek Paired Watershed Study was 1.7 mm to 4.4 mm the first summer following forest harvest. August streamf low in the small watersheds was not distinguishable from preharvest levels within 5 years for all but one watershed, which had the highest proportion of watershed area harvested.
- Subjects
OREGON; LOGGING; FOREST management; FOREST hydrology; STREAMFLOW
- Publication
Western Journal of Applied Forestry, 2013, Vol 28, Issue 1, p13
- ISSN
0885-6095
- Publication type
Article
- DOI
10.5849/wjaf.11-038