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    Author(s): Sherman Swanson
    Date: 1989
    Source: In: Abell, Dana L., Technical Coordinator. 1989. Proceedings of the California Riparian Systems Conference: protection, management, and restoration for the 1990s; 1988 September 22-24; Davis, CA. Gen. Tech. Rep. PSW-GTR-110. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; p. 96-101
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (922 KB)

    Description

    Historic use of many stream riparian areas and associated watersheds has impaired the capacity of riparian vegetation and floodplains to reduce stream energy and trap sediments. As low-gradient streams with erodible banks increase in width and change their pattern, they approach a threshold of instability. Once a stream exceeds a threshold, it must proceed through a process of geomorphic gully evolution that includes degradation, widening, and aggradation phases. Opportunities for enhancing and maintaining favorable conditions of stream morphology and associated riparian values vary throughout this process. The highest priority stream reaches for watershed, riparian, and stream management are those approaching the threshold. After the degradation phase, the marginal reaction to management input increases as the gully widens. Riparian grazing can be managed in a variety of ways to avoid detrimental effects. A useful alternative to a riparian exclosure is a riparian pasture that can be managed for optimum riparian resource values.

    Publication Notes

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    Citation

    Swanson, Sherman. 1989. Using Stream Classification to Prioritize Riparian Rehabilitation After Extreme Events. In: Abell, Dana L., Technical Coordinator. 1989. Proceedings of the California Riparian Systems Conference: protection, management, and restoration for the 1990s; 1988 September 22-24; Davis, CA. Gen. Tech. Rep. PSW-GTR-110. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; p. 96-101

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