Browsing by Discipline
Now showing items 1-20 of 205
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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 ... -
An algorithm for processing stem analysis data and sampling intensities for immature jack pine growth
(1994)This study examined two topics. In the first, a computer algorithm was developed to process stem analysis data produced by Tree Ring Increment Measure (TRIM) system. The algorithm developed not only processed TRIM data ... -
An evaluation of remotely sensed wetland mapping
(1994)Landscape management is based on the maintenance of natural ecosystems and recognizes the importance of maintaining the habitat diversity of all ecosystem types. Acquiring information about the size, distribution and ... -
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 ... -
Analysis of hierarchical characteristics of landscapes in Ontario : detecting emergent levels of organizaton
(1998)Hierarchy theory suggests that complex systems such as ecosystems will develop hierarchical structure that can be reflected in multiple emergent levels of organization in landscape patterning. Emergent levels of organization ... -
Analysis of spatial harvest constraints on ecological (wildlife habitat) versus economic (timber harvest) objectives
(2001)The effects of alternative forest management scenarios and spatial constraints were modeled. Specific study area: Nakina North Forest (allocated to Buchanan Forest Products Ltd.) -
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 ... -
Application of a physically based hydrological model on a semi-arid watershed in Northern Ghana
(1997)Land degradation in semi-arid environments is increasing due to rapid population growth, poor landuse practices and variable climate conditions. Landuse planners require a better understanding of the impact that proposed ... -
Applications of satellite remote sensing to develop forest inventory for strategic-level planning
(2003)Forest inventory is the fundamental base information for most decision making processes in today’s forest management planning. Recently in Ontario, with increasing industrial involvement, new environmental and multiple ... -
Applying criteria and indicators to assess ecological integrity of a boreal national park and adjoining forest management units / by Andrew James Promaine.
(1999)Assessing and evaluating ecological integrity is a complex and often subjective task. However, recent legislative changes have forced ecosystem managers to develop more quantitative techniques to measure ecological ... -
Approach to predict nutrient status and growth response of fertilized jack pine by foliar diagnosis
(1979)A factorial experiment testing N, P and K fertilizers, and a series of simpler, two-treatment (control and NPK) fertilizer trials were established in a range of jack pine stands to determine the application of a foliar ... -
Aspects of comparative growth, morphology and anatomy of long and short shoots of Betula papyrifera Marsh
(1983)The primary objectives of this research were: 1) To compare long and short shoot growth utilizing growth analysis techniques. 2) To describe the general morphology of long and short shoots and to compare them using ... -
Aspects of the vegetation, hydrology, water chemistry and microclimate of Barclay's Bog, Northwestern Ontario
(1989)Barclay's Bog is located approx. 40 km. north of Thunder Bay, Northwestern Ontario and borders the Hawkeye Lake Watershed Study Site. -
Assessment of land cover changes and hydrologic response of Tamne River Basin
(1996)Northeastern Ghana, West Africa, is characterised by a high population growth rate and adverse climatic conditions, e.g., a long dry season followed by a short-duration but intense rainfall pattern. Land degradation in ... -
Beaver central place foraging : literature review, model and field test
(1984)The spatial distribution of tree cutting activity by beaver (Castor canadensis Kuhl) and tree availability were measured at two beaver colonies near Thunder Bay, Ontario. Beaver maximize the net rate of energy ... -
Biodiversity and forest management : five forest management plans evaluated
(2000)The five forest management plans evaluated are: Trout Lake, Nipissing, French-Severn, Kapuskasing, and, Whiskey Jack. -
Biological aspects of the biopulping fungus Ceriporiopsis subvermispora
(2002)The specific activity of four isolates of C. subvermispora media was found to be quite variable. Growth on PDA was the fastest compared to other common nutrient media. Cardinal temperatures for growth were optimum at ... -
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 ... -
Carbon and nitrogen dynamics associated with post-wildfire stand development of boreal mixed conifer ecosystems : application of data in model validation and refinement
(2006)Study site : Northwestern Ontario -
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 ...
