Forest Investment Account

Abstract of FII Project R04-048

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Stream Channels, Large Woody Debris and Managed Watersheds in Biogeoclimatic Zones

Author(s): Hogan, Dan (BC Ministry of Forests)
Subject: Forestry, Geomorphology, Hydrology, Silviculture/Forest Management Systems
Series: Forest Investment Account (FIA) - Forest Science Program


The objectives of our proposed research are to compare the large woody debris (LWD) budgets and channel morphology in managed watersheds with those from similar old growth forests. A comparison of LWD budgets (input, storage, and output) enables critical assessment of the influence of different management strategies in small headwater streams (channel widths <3 m), intermediate (channel widths 3 to 30 m) and large (widths >30 m) sized-streams in different biogeoclimatic zones in British Columbia. Three management scenarios (post-Forest Practices Code (FPC), pre-FPC recent, and pre-FPC old) will be considered. The results will resolve questions such as those dealing with the effectiveness/requirement of buffer strips along small streams, the source of LWD in intermediate streams, and wind-firmness of trees left standing along larger FPC streams (S1, S2, and S3).

For further information, please contact Dan Hogan, BC Ministry of Forests - Research Branch (

Updated September 08, 2005 

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