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Impacts of logging on storm peak flows, flow volumes and suspended sediment loads in Caspar Creek, CaliforniaAuthor(s): Jack Lewis; Sylvia R. Mori; Elizabeth T. Keppeler; Robert R. Ziemer
Source: In: Mark S. Wigmosta and Steven J. Burges (eds.) Land Use and Watersheds: Human Influence on Hydrology and Geomorphology in Urban and Forest Areas. Water Science and Application Volume 2, American Geophysical Union, Washington, D.C.; 85-125.
Publication Series: Miscellaneous Publication
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DescriptionAbstract - Models are fit to 11 years of storm peak flows, flow volumes, and suspended sediment loads on a network of 14 stream gaging stations in the North Fork Caspar Creek, a 473-ha coastal watershed bearing a second-growth forest of redwood and Douglas-fir. For the first 4 years of monitoring, the watershed was in a relatively undisturbed state, having last been logged prior to 1904, with only a county road traversing the ridgetops. Nearly half the watershed was clear-cut over a period of 3 years, and yarded primarily using uphill skyline cable systems to spur roads constructed high on the slopes. Three tributaries were maintained as controls and left undisturbed. Four years of data were collected after logging was completed. Exploratory analysis and model fitting permit characterization and quantification of the effects of watershed disturbances, watershed area, antecedent wetness, and time since disturbance on storm runoff and suspended sediment. Model interpretations provide insight into the nature of certain types of cumulative watershed effects.
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CitationLewis, Jack; Mori, Sylvia R.; Keppeler, Elizabeth T.; Ziemer, Robert R. 2001. Impacts of logging on storm peak flows, flow volumes and suspended sediment loads in Caspar Creek, California. In: Mark S. Wigmosta and Steven J. Burges (eds.) Land Use and Watersheds: Human Influence on Hydrology and Geomorphology in Urban and Forest Areas. Water Science and Application Volume 2, American Geophysical Union, Washington, D.C.; 85-125.
KeywordsPSW4351, Caspar Creek, watershed, clearcut, suspended sediment, storm runoff, logging, streamflow, road building, geomorphology, hydrology
- Trends in streamflow and suspended sediment after logging, North Fork Caspar Creek
- Measuring sediment yields of storms using PSALT
- Evaluating forest management effects on erosion, sediment, and runoff: Caspar Creek and northwestern California
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