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  1. Channel recovery from recent large floods in north coastal California: rates and processes

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    Author(s): Thomas E. Lisle
    Date: 1981
    Source: In: R. N. Coates (ed.), Proceedings, Symposium on Watershed Rehabilitation in Redwood National Park and Other Pacific Coastal Areas; 25-28 August 1981; Arcata, California. Sacramento, California: Center for Natural Resources Studies of JMI, Inc. p. 153-160,
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (88 KB)

    Description

    Abstract - Stream channel recovery from recent large floods in northern California involves a sequence of processes, including degradation of streambeds to stable levels, narrowing of channels, and accentuation of riffle-pool sequences. Most channels have degraded but remain widened because hillslope encroachment and establishment of riparian groves conducive to sediment deposition have not yet caused streambanks to accrete. The deepening of pools depends on streambed degradation, channel narrowing, and introduction of scouring agents, such as large organic debris, that were removed by floods. The treatment of riparian vegetation and organic debris may be the most effective and economical means of hastening channel recovery.

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    Citation

    Lisle, Thomas E. 1981. Channel recovery from recent large floods in north coastal California: rates and processes. In: R. N. Coates (ed.), Proceedings, Symposium on Watershed Rehabilitation in Redwood National Park and Other Pacific Coastal Areas; 25-28 August 1981; Arcata, California. Sacramento, California: Center for Natural Resources Studies of JMI, Inc. p. 153-160,

    Keywords

    PSW4351, stream channel recovery, streambed degradation, channel narrowing, hillslope encroachment, erosion, fish habitat

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