Faculty Publications

Source Distances for Coarse Woody Debris Entering Small Streams in Western Oregon and Washington

Document Type

Article

Journal/Book/Conference Title

Canadian Journal of Forest Research

Volume

20

Issue

3

First Page

326

Last Page

330

Abstract

Coarse woody debris from streamside forests plays important biological and physical roles in stream ecosystems. The distance from stream bank to rooting site was determined for at least 30 fallen trees at each study site on 39 streams in the Cascade and Coast ranges of Oregon and Washington. The study sites varied in channel size (first- through third-order), side-slope steepness (3 to 40°), and age of surrounding forest (mature or old-growth stands). The distribution of distances from rooting site to bank was similar among streams, with 11% of the total number of debris pieces originating within 1 m of the channel and over 70% originating within 20 m. Stands with taller trees (old-growth conifers) contributed coarse woody debris to streams from greater distances than did stands with shorter (mature) trees.

Department

Department of Biology

Original Publication Date

3-1-1990

DOI of published version

10.1139/x90-047

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