With the exception of 3 nests in a single old-growth Douglas-fir, all of the tree vole nests that we located were in Western Hemlock
(n = 16) or Sitka Spruce (n = 14).
Properties that make Western hemlock
a popular choice, according to the USDA Forest Service, include the wood's light color, lack of pitch and its ability to take a varnish finish well.
The Western Hemlock
log walls contain approximately 90 percent heartwood, which provides more resistance to penetration by insects and decay-causing fungi.
RELATIONSHIP BETWEEN THE KAPPA NUMBER AND THE PERMANGANATE NUMBER OF THE WESTERN HEMLOCK
For instance, in the wetter coastal region the species harvested include Western hemlock
, Douglas fir, Western red cedar, Yellow cedar and Sitka spruce.
The new strategy will involve removing 40,000 western hemlock
conifers and will take nearly 50 years to complete.
To determine the fertilizing effect of the salmon wastes, Reimchen contracted a lab in California to use new technology to analyze nitrogen in samples taken from Western Hemlock
Habitat at Boulder Creek and Humptulips Ridge (the primary study sites) is old- and second-growth rain forest of western hemlock
, Tsuga heterophylla, sitka spruce, Picea sitchensis, and western redcedar, Thuja plicata.
These forests are located in a humid temperate region where Douglas fir (Pseudotsuga menziesii), western red cedar (Thuja plicata), western hemlock
(Tsuga heterophylla) and Sitka spruce (Picea sitchensis) are dominant.
The primary timber species consisted of Douglas fir (58%), Western hemlock
(28%) and Red alder (14%) with essentially no other species located on the property.
Species from coastal BC are amabilis fir, Douglas fir, and western hemlock