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Patterns and controls of gully growth along the shoreline of Lake Huron
Author(s) -
Burkard M. B.,
Kostaschuk R. A.
Publication year - 1997
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/(sici)1096-9837(199710)22:10<901::aid-esp743>3.0.co;2-o
Subject(s) - shore , watershed , hydrology (agriculture) , vegetation (pathology) , drainage , vegetation cover , geology , environmental science , land use , oceanography , ecology , geotechnical engineering , medicine , pathology , machine learning , computer science , biology
An empirical approach was used to examine the morphology and behaviour of gullies along the eastern shoreline of Lake Huron, Canada. Gully and watershed dimensions and percentage vegetation cover of a sample of 44 gullies were measured from aerial photographs between 1930 and 1992. Gullies with larger watersheds had higher area growth rates. Larger gullies continue to expand over time while small gullies are more likely to become stable. Growth rates increased between 1955 and 1978 because of increased snowfall, extreme flow events, the extension of municipal drains, and the use of subsurface drainage. After 1970, efforts to rehabilitate gullies using drain pipes and check dams contributed to a decrease in gully growth rates. © 1997 John Wiley & Sons, Ltd.