Search
Now showing items 71-80 of 83
An Examination of bark beetles and their associated blue stain fungi on boreal jack pine (Pinus banksiana) and white spruce (Picea glauca) in the Thunder Bay Region
(2009)
Blue stain, caused by members of the Ophiostomatales, is of concern to the forest industry because it can quickly devalue timber by penetrating deep into the sapwood and creating dark blue to black staining. These fungi ...
Ecosystem sustainability and resource-based tourism : linkages and indicators
(2000)
The landscape of northern Ontario provides an ideal setting for resource-based
tourism and, in recent years, the focus on tourism has increased due to the
popularity of outdoor recreation and the notion that tourism can ...
Post disturbance dynamics of aspen mixed-woods : a comparison among fire, logging, and budworm outbreak
(2002)
Seventy-one aspen (Populus tremuloidies Michx.) mixedwood stands disturbed in
the 1980’s were sampled in southeastern Manitoba, Canada to examine the response of
arboreal and understory communities to natural and ...
Ecologically-based taper equations for major tree species in Manitoba
(2004)
Kozak's variable exponent taper equation was fitted for balsam poplar (Populus
balsamifera L.), trembling aspen (Populus tremuloides Michx.), white spruce (Picea
glauca (Moench) Voss), black spruce (Picea mariana (Mill.) ...
Carbon stock estimates for red spruce (Picea rubens) forest in central Nova Scotia
(2005)
Carbon storage was measured in natural red spruce dominated stands in the
Eastern Eco-region of central Nova Scotia (NS). Twenty-four plots over a 140-year
chronosequence were established. Within each plot, major carbon ...
The effects of spacing and genetic factors on growth and tree form quality traits of plantation-grown jack pine
(2000)
Overall tree form ofjack pine (Pinus banksiana Lamb.) growing in natural stands
varies from straight slender trees with compact crowns to broad, limby and even multi-stemed
trees. Jack pine grown in plantations at ...
Effects of elevated carbon dioxide concentration and light on biomass morphology and physiology of black spruce and white spruce seedlings
(2008)
Carbon dioxide concentration and light interactions influence competition among boreal tree species, though little is known about the exact effects. The interactive effects of [CO 2 ] and light on growth, biomass production, ...
Adaptive variation in cold hardiness among aspen (Populus tremuloides) provenances
(2002)
The relative efficiencies of using different methods to detect genetic variation in
cold hardiness were evaluated, and the adaptive variation among aspen provenances was
further studied. This thesis is organized as three ...
Black spruce (Picea mariana [Mill.] B.S.P.) boreal ecosystems : how tree-length and full-tree harvesting affects soil microbial populations
(2000)
To evaluate the hypothesis that microbial populations are affected by
organic biomass removals, a study was designed to complement ongoing work in a
black spruce {Picea mariana [Mill.] B.S.P.) Boreal ecosystem. The ...
Lightning occurrence in Pukaskwa National Park and surrounding area
(2000)
Pukaskwa National Park has implemented a natural fire regime emulation program.
One component of the natural fire regime is the pattern of ignitions, primarily from lightning.
There were three ways in which patterns ...