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Now showing items 61-70 of 83
Influence of soil temperature on ecophysiological traits of four boreal tree species
(1999)
A new soil temperature control system was developed for greenhouse experiments. The
system controlled soil temperature by circulating temperature-controlled water around
seedling containers. The system was tested for 5, ...
Effects of harvesting, prescribed burning and wildfire on soil chemical properties in Northwestern Ontario
(1997)
Soil chemistry responses to disturbances were quantified and compared at two dates by
sampling the organic, 0-5 cm and 5-10 mineral soil layers in a northwestern Ontario boreal
mixedwood site. The disturbance treatments ...
Old-growth forests and timber supply : a case study from the boreal forest
(1997)
Historically in Canada, old-growth forest preservation concerns, research, and
analyses have centred on the stately coniferous forests of British Columbia (e.g.,
Clayoquot Sound). Within the past decade, however, the ...
Preliminary investigation of bald eagle distribution, productivity and nest site requirements in Northern Ontario
(1995)
Bald eagles {Haliaeetus leucocephalus alascanus) have been declared an endangered
species in Ontario. For protection of bald eagles from behavioural and habitat
disturbance, their nests are defined as Areas of Concerns ...
Shigometer and electrical resistance studies of paper birch
(1990)
The Shigometer was evaluated as an instrument for detecting
red heart of paper birch. The Shigometer accurately detected the
presence of red heart at a 50% decrease from the maximum reading
rule but sometimes failed to ...
Impacts of the herbicide glyphosate on moose browse and moose use of four paired treated-control cutovers near Thunder Bay, Ontario
(1993)
Re-assessment of the aerial and ground observations on
four paired, glyphosate treated and control, cutovers near
Thunder Bay, Ontario, indicated that aerial tending with
glyphosate altered the use of these cutovers by ...
Effect of photoperiod on apical growth cessation in tamarack (Larix laricina) and balsam poplar (Populus balsamifera) provenances from northern Ontario
(1990)
The effects of four photoperiods (i.e. 6, 10, 14, and 18 hours) on the rate of apical
growth cessation and apical bud primordia production were studied in controlled
environment experiments using tamarack {Larix laricina ...
Height growth and site index of trembling aspen in north central Ontario
(1991)
Height-growth and site-index curves were developed for estimating site
quality of trembling aspen {Populus tremuloides Michx.) in north central Ontario.
These curves were developed from stem analysis data of dominant ...
Pollen pool heterogeneity in jack pine (Pinus banksiana Lamb.) : a problem for estimating population outcrossing rate?
(1990)
Pollen pool heterogeneity, which violates an assumption
of the mixed-mating model, is one of the major problems
facing population geneticists concerned with measuring
plant mating systems. In the present study, isozyme ...
Effects of variable rate aerial application of Vision on moose (Alces alces) winter browsing and hardwood vegetation
(1993)
Experimental aerial treatment of 7 mixedwood areas in late summer for conifer
release with Vision® at 0.80, 1.06, and 1.60 kg a.e./ha, decreased living hardwood stem densities
after ten months by 42, 61 and 42% ...