Wind Damage in a Partially Harvested Boreal Mixedwood Stand in Northeastern Ontario


Book Description

The primary objective of the study was to test a series of innovative silvicultural treatment packages designed to create mixtures of hardwoods and conifers while monitoring changes in ecological and silvicultural indicators of sustainability. The effects of wind damage on residual trees were monitored at the Stand Level Adaptive Management (SLAM) study site east of Cochrane, Ontario. The goals of this component of the study were to quantify and compare the effects of wind damage between partially harvested and unharvested portions of stands after harvest and to determine their influence on achieving the silvicultural objectives of the partial harvest treatment. Here the authors report the amount and distribution of wind damage in the residual stands at 1, 2, and 4 years after harvest and discuss the effects of this damage on the potential to achieve the desired silvicultural objectives. Specifically, they were interested in the effects of harvest treatments, tree species, direction of fall, stem rot, and stem form on the number and percent of wind damaged trees.--Document.







Alternative Silvicultural Systems for Ontario's Boreal Mixedwoods


Book Description

Summarises the potential use of alternative silvicultural (harvesting) systems on the productivity of boreal mixedwood forests. Begins with an overview of the ecology of boreal mixedwoods, including physical environment, stand dynamics, and landscape ecology; then provides detailed reviews of modified clear-cutting systems (including strip cutting, patch cutting, and seed-tree cutting), shelterwood systems, and selection systems (including group selection and individual tree selection). Also briefly discusses the environmental considerations that are associated with these systems (effects on soil, water resources, wildlife, and aesthetics). Concludes with a discussion of areas of uncertainty in the application of alternative systems and the perceived problems that have limited their use in boreal mixedwoods.




A Literature Review of Ice Storm Impacts on Forests in Eastern North America


Book Description

Synthesizes the published literature on the following: the ecological and possible economic effects of ice storms on natural forests and plantations, including where possible the influences of past management practices; the recovery and mortality of individual trees and forests after ice storm damage; and management recommendations for ice damaged woodlots and plantations to minimize negative impacts. The literature search also superficially considered: wind and snow damage; some of the biological functions of tree reaction to wounds, crown damage, defoliation, and increased exposure; and disease and insect implications.







Ontario Forest Research Institute Publications 2006-2010


Book Description

"This bibliography includes a list and descriptions of the content of publications written or co-authored by staff of the Ontario Ministry of Natural Resources' Ontario Forest Research Institute between 2006 and 2010. During this five-year period, over 150 publications were produced by the institute's 14 research scientists, including a book, 83 journal articles, 31 reports, 10 technical notes, 5 newsletters, and 11 papers/summaries in conference/ workshop proceedings. The overall focus of the publications is forest resource management-related research and practice. Topical areas and scales of investigation are diverse and include natural disturbance regimes and landscape dynamics; carbon budgets and effects of climate change on forests; and silviculture studies on site preparation, tree improvement, vegetation management, growth and yield, disease management, and harvesting in conifer, mixedwood, and hardwood forests. Author and subject indexes are provided."--Document.




Ontario Tree Marking Guide


Book Description




Ecology and Recovery of Eastern Old-Growth Forests


Book Description

The landscapes of North America, including eastern forests, have been shaped by humans for millennia, through fire, agriculture, hunting, and other means. But the arrival of Europeans on America’s eastern shores several centuries ago ushered in the rapid conversion of forests and woodlands to other land uses. By the twentieth century, it appeared that old-growth forests in the eastern United States were gone, replaced by cities, farms, transportation networks, and second-growth forests. Since that time, however, numerous remnants of eastern old growth have been discovered, meticulously mapped, and studied. Many of these ancient stands retain surprisingly robust complexity and vigor, and forest ecologists are eager to develop strategies for their restoration and for nurturing additional stands of old growth that will foster biological diversity, reduce impacts of climate change, and serve as benchmarks for how natural systems operate. Forest ecologists William Keeton and Andrew Barton bring together a volume that breaks new ground in our understanding of ecological systems and their importance for forest resilience in an age of rapid environmental change. This edited volume covers a broad geographic canvas, from eastern Canada and the Upper Great Lakes states to the deep South. It looks at a wide diversity of ecosystems, including spruce-fir, northern deciduous, southern Appalachian deciduous, southern swamp hardwoods, and longleaf pine. Chapters authored by leading old-growth experts examine topics of contemporary forest ecology including forest structure and dynamics, below-ground soil processes, biological diversity, differences between historical and modern forests, carbon and climate change mitigation, management of old growth, and more. This thoughtful treatise broadly communicates important new discoveries to scientists, land managers, and students and breathes fresh life into the hope for sensible, effective management of old-growth stands in eastern forests.







Ecosystem Management in the Boreal Forest


Book Description

Forest Ecosystem Management. A management approach that aims to maintain healthy and resilient forest ecosystems by focusing on a reduction of differences between natural and managed landscapes to ensure long-term maintenance of ecosystem functions and thereby retain the social and economic benefits they provide to society.That is the definition of forest ecosystem management proposed in this book, which provides a summary of key ecological concepts supporting this approach. The book includes a review of major disturbance regimes that shape the natural dynamics of the boreal forest and gives examples from different Canadian boreal regions. Several projects implementing the forest ecosystem management approach are presented to illustrate the challenges created by current forestry practices and the solutions that this new approach can provide. In short, knowledge and understanding of forest dynamics can serve as a guide for forest management. Planning interventions based on natural dynamics can facilitate reconciliation between forest harvesting needs and the interests of other forest users.