Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Ellen Wohl; Susan Bolton; Daniel Cadol; Francesco Comiti; Jaime R. Goode; Luca Mao
    Date: 2012
    Source: Journal of Hydrology. 462-463: 67-76.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (735.92 KB)

    Description

    Geomorphic and ecological effects of instream wood have been documented primarily along rivers in the temperate zones. Instream wood loads in tropical rivers might be expected to differ from those in analogous temperate rivers because of the higher transport capacity and higher rates of wood decay in the tropics. We use data from four field sites in Costa Rica and Panama to demonstrate that wood loads are consistently lower in tropical rivers, despite substantial variations among tropical sites as a result of differences in mechanisms of wood recruitment. We develop a model of wood dynamics (recruitment, transport, and retention) based on differences in dominant wood recruitment mechanism. The steadystate end-member reflects sites where gradual recruitment of wood through individual tree fall creates a relatively consistent wood load through time and development of logjams is minimal. The episodic end-member reflects sites dominated by episodic mass recruitment via landslides or blowdowns. This facilitates formation of transient logjams, so that wood loads exhibit substantial spatial and temporal variation along the channel network. The model presented here should also apply to headwater streams in the temperate zone, although existing documentation suggests that jams are more persistent along streams in the temperate zone.

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Wohl, Ellen; Bolton, Susan; Cadol, Daniel; Comiti, Francesco; Goode, Jaime R.; Mao, Luca. 2012. A two end-member model of wood dynamics in headwater neotropical rivers. Journal of Hydrology. 462-463: 67-76.

    Cited

    Google Scholar

    Keywords

    large woody debris, Costa Rica, Panama, landslides, logjams, wood recruitment

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/41471