Peak flow responses to clear-cutting and roads in small and large basins, western Cascades, Oregon

This study quantified long-term changes in streamflows associated with clear-cutting and road construction and examined alternative hydrologic mechanisms to explain stream hydrograph changes in the Cascades Range, western Oregon. We examined differences in paired peak discharges for 150 to 375 storm...

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Bibliographic Details
Published inWater resources research Vol. 32; no. 4
Main Authors Jones, J.A. (Oregon State University, Corvallis.), Grant, G.E
Format Journal Article
LanguageEnglish
Published 01.04.1996
Subjects
AGUA
CARRETERAS
CORTA A HECHO
COUPE RASE
COURS D'EAU
CURSOS DE AGUA
DEBIT
EAU
GASTO
HIDROLOGIA
HYDROLOGIE
IRRIGATION PAR SUBMERSION
OREGON
RIEGO POR SUMERSION
ROUTE
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Summary:This study quantified long-term changes in streamflows associated with clear-cutting and road construction and examined alternative hydrologic mechanisms to explain stream hydrograph changes in the Cascades Range, western Oregon. We examined differences in paired peak discharges for 150 to 375 storm events for five basin pairs, using 34-year records from two pairs of 60-to-101-ha experimental basins in the H. J. Andrews Experimental Forest, and 50-to-55-year records from three pairs of adjacent basins ranging from 60 to 600 km2. Forest harvesting has increased peak discharges by as much as 50% in small basins and 100% in large basins over the past 50 years. These increases are attributable to changes both in flow routing due to roads and in water balance due to treatment effects and vegetation succession
Bibliography:P10
9614840
ISSN:0043-1397
1944-7973
DOI:10.1029/95WR03493