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Now showing items 31-40 of 74
Educating resource technicians to the new concept of ecological classification systems
(2001)
The topics o f Ecosystem Management (EM) and Ecological Classification
Systems (ECS) are appearing more frequently in forest management literature. These
systems facilitate our understanding, not only o f forests from a ...
Effects of soil temperature on growth and biomass allocation in four boreal tree species
(2001)
Trembling aspen (Populus tremuloides Michx.), black spruce (Picea mariana (Mill.)
B.S.P.), white spruce (Picea glauca (Moench) Voss), and jack pine (Pinus banksiana Lamb.)
seedlings were subject to seven soil temperature ...
Effects of alternative conifer release treatments on a soil seed bank in a boreal spruce plantation
(2002)
Evaluates the effects of 5 alternative conifer release treatments : cutting with brushsaws and a mechanical cleaning machine, applying herbicides (Release triclopyr and Vision glyphosate) by helicopter, and, untreated ...
Anatomical and physical wood property variation and juvenile wood distribution in a single stem of trembling aspen
(2003)
The variation of fiber length, vessel element length, relative density, ring width
and the distribution o f juvenile wood within the stem of a 62-year-old trembling aspen
(Populus tremuloides Michx.) were studied. Samples ...
Seasonal changes in gas exchange and foliar nitrogen of three conifer species growing on an Ontario boreal mixedwood site
(2003)
Jack pine, black spruce and white spruce are three vital species of the
Ontario boreal mixedwood forest. The purpose of this study is to compare and
contrast the ecophysiological characteristics of each species and to ...
Analysis of Ghana's renewable resource policies
(2003)
A comprehensive study of Ghana's renewable resource policies has been completed. The study is composed of two major components. First, an examination of environmental degradation occurring in Ghana along with the agents ...
Preliminary site-quality evaluation tools for the hardwood forests of central Ontario
(2004)
There are currently no locally-derived, quantitative site-quality evaluation tools available for
major tree species in the tolerant hardwood forests of central Ontario. To estimate potential
site productivity, site-index ...
Genetic variation in physiology and growth under ambient and elevated CO2 concentrations in four provenances of Populus tremuloides from Northwestern Ontario
(2003)
Trembling aspen (Populus tremuloides Michx.) is the most widely distributed and
probably most genetically varied woody species in North America. Four provenances of
trembling aspen seedlings from northwestern Ontario ...
Pre- and post-forest management investigations of factors affecting sediment movement in riparian areas in Northwestern Ontario
(2004)
The principal objectives of this study were to measure the impacts of timber harvesting
on sediment transport rates (mineral and organic) associated with two clearcut areas in
northwestern Ontario and to evaluate the ...
Shoreline forest disturbance rates in natural and managed forests of northwestern Ontario
(2004)
The purpose of this study was to compare the rates of disturbance along forested
shorelines between natural and managed forests of the mesic boreal region of
northwestern Ontario. Comparisons were made between areas that ...