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Coarse woody debris and channel morphology interactions for undisturbed streams in southeast Alaska, U.S.A.
Author(s) -
George Robison E.,
Beschta Robert L.
Publication year - 1990
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290150205
Subject(s) - large woody debris , streams , debris , watershed , coarse woody debris , channel (broadcasting) , hydrology (agriculture) , geology , debris flow , environmental science , ecology , riparian zone , habitat , oceanography , geotechnical engineering , biology , engineering , machine learning , computer network , computer science , electrical engineering
Coarse woody debris and channel morphology were evaluated for five low‐gradient streams that ranged from first to fourth order (0.7 to 55 km 2 watershed area). Debris volumes were directly related to variations in bankfull width. Woody debris was associated with 65 to 75 per cent of all pools and the relative proportion of types of pools (i.e. plunge, lateral scour, etc.) varied with stream size. High variability in channel depths and widths was common. The results provide benchmark values of woody debris loadings and channel morphology for undisturbed coastal Alaskan stream systems.