Water Stewardship Information Sources

ID 1644
Citation Spittlehouse, DL, RS Adams and RD Winkler. 2004. Forest, edge, and opening microclimate at Sicamous Creek. BC Ministry of Forests, Research Branch, Victoria, B.C., Res. Rep. 24.
Organization FLNRO
URL http://www.for.gov.bc.ca/hfd/pubs/Docs/Rr/Rr24.pdf
Abstract/Description or Keywords The Sicamous Creek research site is 7 km east-southeast of
Sicamous (50ᄚ 50' n, 118ᄚ 55' w) at an elevation of 1530-1830 m,
on a northwest-facing slope. The Engelmann spruce-subalpine
fi r forest (ESSFwc2) is 22-27 m tall and canopy closure is about
50%. The climate at the site of the Sicamous Creek Silvicultural
Systems Project is cool and moist with a mean annual air temperature
of 1.2ᄚc and an annual precipitation of 910 mm, about
half of which occurs as snow.
The treatments monitored in this study were 0.1-, 1-, and
10-ha openings and mature forest. The base weather station was
in a large opening with scattered regeneration adjacent to the
experimental area. This study, in agreement with other studies,
shows that most of the change in microclimate from forest
to opening takes place within one tree height either side of the
forest/opening edge. Openings of less than one tree height in
diameter have a solar, wind, and thermal environment similar to
that in the forest. Edge orientation has an effect, particularly for
south-facing edges, where solar radiation can penetrate some
distance into the forest for much of the day. Wind blowing directly
into an edge penetrates farther into the forest than from
other directions. The forest intercepts 20-30% of the precipitation.
On sunny days, the forest air temperature near the ground
is 2-4ᄚc cooler than in the large openings. Near-surface daytime
soil temperature is also 2-4ᄚc cooler in the forest, while nearsurface
nighttime soil temperatures are similar. snowmelt, snow, precipitation, high elevation
Information Type report
Regional Watershed Shuswap
Sub-watershed if known Sicamous Creek
Aquifer #
Comments
Project status complete
Contact Name David Spittlehouse
Contact Email [email protected]