Forest Investment Account (FIA) - Land Base Investment Program - Innovative
FIA Project 4968003

    SILVICULTURAL SYSTEMS ON A DEEP SNOWFALL MULE DEER WINTER RANGE IN THE CENTRAL INTERIOR OF BC: 10 YEAR RESEARCH UPDATE
 
Project lead: Waterhouse, Michaela (BC Ministry of Forests and Range - Southern Interior Forest Region)
Author: Waterhouse, Michaela J.
Subject: Forest Investment Account (FIA), British Columbia
Series: Forest Investment Account (FIA) - Land Base Investment Program - Innovative
Description:
In the Horsefly variant of the moist, cool Interior Cedar–Hemlock (ICHmk3) biogeoclimatic subzone, within the central interior of British Columbia, Douglas-fir (Pseudotsuga menziesii) tends to occur in even-aged stands. Douglas-fir forests are important from both the forest industry and wildlife habitat management perspectives. In this ecosystem, Douglas- fir can be clearcut and regenerated through planting mixes of lodgepole pine (Pinus contorta), interior spruce (Picea glauca x engelmannii), and Douglas-fir, but this practice seriously compromises habitat value as mule deer winter range. Deer require mature and older Douglas-fir stands as winter range to reduce the snowpack and provide forage (Waterhouse et al. 1994), especially foliage from larger trees (Dawson et al. 1990). This project was initiated in 1996 to test silvicultural systems options for the management of mule deer winter range in the transition to deep snowpack zones. This represents about one-quarter of the identified winter range within the Cariboo-Chilcotin land use planning area (Dawson et al. 2006).This Extension Note summarizes the response of vegetation and Douglas-fir regeneration to a range of opening sizes (0.25–2.0 ha), opening orientations (along and across contours), and site preparation treatments (disc trenching or not), up to 10 years post-harvest. Results from the pre-harvest and 5-year data collections were fully documented (Waterhouse and Eastham 205); year-10 data (207) were collected and analyzed using the same methods. The snow distribution, deer use, and tree fall studies were completed between 1998 and 203.

    Deliverables:

Extension Note (2.0Mb)

To view PDF documents you need Adobe Acrobat Reader, available free from the Adobe Web Site.

Updated August 16, 2010 

Search for other  FIA reports or other Ministry of Forests and Range publications.

Please direct questions or comments regarding publications to For.Prodres@gov.bc.ca