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Hydrologic changes after logging in two small Oregon coastal watersheds

Water Supply Paper 2037

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Abstract

Effects of clearcut, cable logging on the hydrologic characteristics of a small coastal stream in Oregon indicate an average 181-percent increase in sediment yield over a 7-year postlogging period. Annual runoff and high-flow volumes increased 19 and 1.1 inches (480 and 28 mm), respectively, after logging in the watershed. Clearcutting in small, spaced patches in another watershed resulted in some increase in water and sediment yields, but the increase was not statistically significant. Average monthly April-October maximum water temperatures increased significantly in the principal stream of both the clearcut and 'patch-cut' watersheds. Hydrologic characteristics of both streams generally appear to be returning to prelogging conditions (19731.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Hydrologic changes after logging in two small Oregon coastal watersheds
Series title:
Water Supply Paper
Series number:
2037
Edition:
-
Year Published:
1977
Language:
ENGLISH
Publisher:
U.S. Geological Survey ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Description:
vi, 31 p. :ill., map ;23 cm. --