Water Stewardship Information Sources
| Citation | Hudson, R and D'Anjou, B. 2001. Roberts Creek Study Forest: the effects of shelterwood harvesting and blowdown on sediment production in a small zero-order creek. Forest Research Extension Note EN-004, Vancouver Forest Region. |
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| Organization | FLNRO |
| URL | https://www.for.gov.bc.ca/rco/research/hydroreports/EN004.pdf |
| Abstract/Description or Keywords | A pilot study was conducted to monitor the effect of retaining dispersed dominant Douglasfir and redcedar within a harvested block on suspended sediment in a small zero-order creek. Following harvesting, blowdown of susceptible leave trees occurred during the first fall wind storm of the post-treatment season. Three trees that blew down were rooted in the stream channel. Two large pulses of suspended sediment occurred in conjunction with the storm, a result of channel disturbance associated with the instream blowdown. Peak sediment concentrations during these events represented a ten-fold increase over pre-treatment levels. Sediment concentrations during subsequent storm events later in the post-harvesting season returned to baseline conditions. These results suggest that in partial logging operations, trees adjacent to zero-order ephemeral streams should be marked for removal to minimize water quality problems. |
| Information Type | report |
| Regional Watershed | sunshine coast |
| Sub-watershed if known | Flume Creek |
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| Project status | complete |
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