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Author: Colin Leslie Bowling Publisher: [Thunder Bay] : Ontario Ministry of Natural Resources, Northwest Science & Technology ISBN: Category : Forest regeneration Languages : en Pages : 42
Book Description
Summarizes results of a study conducted to investigate species composition, stand structure, and rate of ingress of natural regeneration during the first 20 years following clear-cutting by the tree-length logging method in north- western Ontario. In 1990 and 1991, 96 plantations in that region were assessed, with the following data collected for planted trees and natural regeneration: tree species, site, seedbed type, height, and density. Some plots were destructively sampled to determine total tree age in order to estimate the rate of ingress of natural regeneration. Results have relevance for predicting the probability of occurrence and density of natural regeneration, and for the timing of regeneration surveys.
Author: Colin Leslie Bowling Publisher: [Thunder Bay] : Ontario Ministry of Natural Resources, Northwest Science & Technology ISBN: Category : Forest regeneration Languages : en Pages : 42
Book Description
Summarizes results of a study conducted to investigate species composition, stand structure, and rate of ingress of natural regeneration during the first 20 years following clear-cutting by the tree-length logging method in north- western Ontario. In 1990 and 1991, 96 plantations in that region were assessed, with the following data collected for planted trees and natural regeneration: tree species, site, seedbed type, height, and density. Some plots were destructively sampled to determine total tree age in order to estimate the rate of ingress of natural regeneration. Results have relevance for predicting the probability of occurrence and density of natural regeneration, and for the timing of regeneration surveys.
Author: Edward S. Symons Publisher: ISBN: Category : Business & Economics Languages : en Pages : 28
Book Description
Presents results of a study that describes the stand structure and composition of selected full-tree harvested sites about ten years after harvest, with examination of evidence for ingress of natural regeneration. Sampled sites were stratified by seedbed condition and the pre-harvest vegetation type they supported; seedbeds were classified as either intact/mixed forest floor or scalped/mineral soil exposed. Vegetation types were amalgamated into ecologically similar groups or treatment units. Most sites were classified as black spruce-jack pine/feathermoss with intact/mixed forest floor seedbeds. Both the rate of natural ingress over the first seven years of stand development and the resultant stand structure and composition are noted.
Author: Malcolm F. Squires Publisher: Dundurn ISBN: 1459739345 Category : Political Science Languages : en Pages : 171
Book Description
Nearing the end of a lifetime in the boreal forest, a retired forester writes a passionate plea for rational, science-based forest management. The boreal forest is constantly changing, often dramatically. We like to picture it as a stable, balanced system. Really, it is anything but stable. The boreal forest is dynamic. For over sixty years, forester Malcolm F. Squires has seen mature forests within protected areas devastated by insects, moose, wind, and wildfire. While the forests often return from this destruction, they are never quite the same. A naturally balanced boreal forest is a human notion that does not match the reality of nature. If we don’t soon recognize and accept that reality and stop making irrational demands that a forest be “protected” from change or human management, we may be dooming them to disaster.
Author: Dean Gordon Thompson Publisher: ISBN: Category : Nature Languages : en Pages : 546
Book Description
Presents proceedings of a vegetation management conference focusing on alternative methods of vegetation control, ecosystem effects associated with vegetation management practices, and ecosystem management and its implications for forest vegetation management. Topics of presentations include plant competition, the Fallingsnow Ecosystem Project, conifer release treatments, effect of herbicides, forest regeneration, responses of specific tree species to management treatments, understory vegetation responses, hardwood species control, effects of tree spacing, use of biological indicators, effects on small mammals, residual effects of forestry herbicides on plant diversity, herbicide phytotoxicity, decision support systems, microbial control strategies, microclimatic changes following treatments, vegetation dynamics, use of prescribed burning, and the use of sheep in vegetation management. Includes author index.
Author: Publisher: ISBN: Category : Logging Languages : en Pages : 400
Book Description
No. 1-13 are short-term studies; with no. 14 becomes a series of supplementary reports summarizing the results of longer-term data collection.
Author: William M. Ciesla Publisher: Fao ISBN: Category : Business & Economics Languages : en Pages : 144
Book Description
The objective of this paper is to provide a global review of the non-wood uses of conifers. For the purposes of this paper, conifers are defined as trees and shrubs of the botanical orders Coniferales, Taxales and Ginkgoales (Rushforth 1987). Although some services are briefly mentioned, the focus of this paper is on products which conifers provide species, which are important sources of non-wood forest products, and places where these products are harvested. With the exception of essential oils, which can be obtained from several parts of the tree, the products described are organized by the part of the tree from which they are obtained (e.g. foliage, bark and roots, resin, seeds and cones). Where possible, data on levels of production and international trade are presented. Problems associated with the sustainable management of these products and compatibility or conflicts with other land uses are also presented. Both contemporary and historical or traditional uses of non-wood products from conifers are discussed.
Author: Stephen J. Colombo Publisher: ISBN: Category : Science Languages : en Pages : 60
Book Description
Reviews literature concerning the effects of global climate change on forest plants and communities, and provides opinions on the potential impacts that climate change may have on Ontario forests. Sections of the review discuss the following: the climate of Ontario in the 21st century as predicted by climate models; forest hydrology in relation to climate change; insects and climate change; impacts on fungi in the forest ecosystem; impacts on forest fires and their management; plant physiological responses; genetic implications of climate change; forest vegetation dynamics; the use of models in global climate change studies; and forest management responses to climate change.
Author: Colin Leslie Bowling
Author: Colin Leslie Bowling
Author: Edward S. Symons
Author: Malcolm F. Squires
Author: Dean Gordon Thompson
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Author: 
Author: Ontario. Ministry of Natural Resources
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Author: William M. Ciesla
Author: Stephen J. Colombo