Channel Morphology of Unlogged, Logged, and Debris Torrented Streams in the Queen Charlotte Islands

Channel Morphology of Unlogged, Logged, and Debris Torrented Streams in the Queen Charlotte Islands

Microform - 1986
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During the fall-winter of 1978-79, frequent high-intensity rain stormsresulted in extensive mass wasting across much of the Queen Charlotte Islands,with preliminary surveys indicating that many of the failures were probablyinduced by steep-slope logging. The British Columbia Ministry of Forests andLands, the British Columbia Ministry of Environment and Parks, and CanadaDepartment of Fisheries and Oceans attempted, by implementation of the 5-yearFish/Forestry Interaction Program, initiated in 1981, to resolve issuesconcerning the effects of steep-slope logging and develop prescriptivesolutions for avoiding or minimizing landslide damage. This study comparesthe morphology of coastal, gravel-bed streams in two logged, one logged anddebris torrented, and two unlogged watersheds in the Queen Charlotte Islands. The influence of both logging and direct mass wasting events onchannel morphology and on the in-stream physical habitat ofsalmonids is quantified.The comparison also provides a basis fordetermining habitat rehabilitation criteria for damaged channels. Pools andriffles are discussed in detail.
Publisher: Victoria : Ministry of Forests and Lands, 1986
Description: 94 p. : ill
Branch Call Number: MF BC-DOC 87-05624

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