Now showing items 11-20 of 45
Crown dynamics in Pinus resinosa Ait. : analysis and stochastic description of branch production, branch extension growth and foliage dry weight---branch length relationships
The development of the crown structure of Pinus resinosa Ait. was analysed in terms of three component processes of tree growth: the number of first order branches per whorl within the crown, the annual extension increments ...
Spatial genetic structure within four tamarack (Larix laricina (Du Roi) K. Koch) populations in Northwestern Ontario
This study was conducted to test the null hypothesis that tamarack (Larix laricina (Du Roi) K. Koch) populations are random assemblages of genotypes, and that this absence of pattern can be observed on sites with ...
Upland boreal forest northwest of Thunder Bay, Ontario : ecology and applications to silviculture
Multivariate phytosociological methods were used to investigate the ecology of upland boreal forest stands. The ecological information was used to derive silvicultural recommendations. The boreal forest stands did not ...
Ten-year growth response of 45-year old Pinus banksiana Lamb. to urea fertilization and low thinning
The objectives of this investigation were 1) to examine the duration and pattern of jack pine growth response to urea fertilization and low thinning, and 2) to examine methods commonly used in the measurement of ...
Evaluation of a mini-container, accelerated transplant system : the black spruce summer crop
The production of black spruce ( Picea mariana (Mill.) B.S.P.) bare root stock in Ontario nurseries presents two main problems. First, seedlings at the end of the first growing season are small, and thus susceptible to ...
Aspects of the vegetation, hydrology, water chemistry and microclimate of Barclay's Bog, Northwestern Ontario
Barclay's Bog is located approx. 40 km. north of Thunder Bay, Northwestern Ontario and borders the Hawkeye Lake Watershed Study Site.
Post logging succession and vegetation management with hexazinone herbicide in Picea glauca (Moench) Voss-Populus tremuloides Michx. forest
The objectives were: to review the successional behaviour of white spruce (Picea glauca (Moench) Voss) - trembling aspen (Populus tremuloides Michxt) stands in the literature, to conduct field studies of the successional ...
Root pruning, wrenching and overwinter cold storage : effects on the morphological and physiological condition of transplant Picea glauca [Moench] Voss nursery stock
The objectives of this thesis were to; 1) evaluate the effect of a single early spring root pruning followed by a series of five root wrenching treatments at three week intervals on the morphological condition of rising ...
Investment modelling in red pine (Pinus resinosa Ait.) plantations
The objective of this study was to develop a microcomputer-based planning model for guiding individual investors in choosing between alternative forestry investments as well as other nonforestry investments in the Thunder ...
Stem analysis : sampling techniques and data processing
Stem analysis is a common forest mensurational technique used to gain individual tree information for various growth attributes. Interest in stem analysis has been renewed with the availability of computer technology, and ...