作者: J. R. Moring
DOI: 10.1007/BF00008510
关键词:
摘要: Average gravel permeabilities decreased significantly in an Oregon, U.S.A., stream after 82% of the drainage basin was clear-cut. Patterns remained statistically normal a unlogged and area that 25% clear-cut, but with riparian buffer strips about 30 m wide left along stream. It is cautioned decreases yearly permeability values can reflect adverse intragravel conditions for developing salmonid eggs alevins, even if other environmental changes, particularly amount sediment fines gravel, are not as apparent.