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Initial effects of clearcut logging on size and timing of peak flows in a small watershed in western Oregon
Author(s) -
Harr R. Dennis,
McCorison F. Michael
Publication year - 1979
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr015i001p00090
Subject(s) - snowmelt , logging , watershed , environmental science , snow , hydrology (agriculture) , flow (mathematics) , water year , atmospheric sciences , physical geography , geology , forestry , geography , drainage basin , geomorphology , physics , geotechnical engineering , cartography , machine learning , computer science , mechanics
Size of annual peak flow in a small watershed in western Oregon was reduced 32%, and average delay of all peak flows was nearly 9 hours following clearcut logging. Size of annual peak flows caused by rain with snowmelt was reduced 36%, and peak flows resulting from rain with snowmelt were delayed an average of nearly 12 hours following logging. Changes are attributed mainly to differences in short‐term accumulation and melting of snow. No significant changes were detected in size or timing of peak flows that resulted from rainfall alone.