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EFFECTS OF HISTORICAL TIMBER HARVESTING PRACTICES ON CARIBOU FORAGE LICHEN ABUNDANCE NEAR MARSH LAKE, YUKON - PHASE 1 FINAL REPORT
The role of broadleaf trees : impacts of managing boreal and sub-boreal mixedwood forests in British Columbia
"Within the boreal and sub-boreal forests of northern British Columbia (B.C.) large areas of broadleaves occur naturally in mixture with conifers or as pure stands. Many conifer plantations contain significant numbers of naturally regenerating trembling aspen, birch, and cotton-wood. Broadleaves have historically been undervalued and considered an impediment to conifer establishment and growth, as reflected in the free-growing guidebooks that suggest limits to the presence of broadleaf trees in regenerating stands (BC MOF 2000; BC MFLNRO 2013). Legislation and policy have evolved to promote practices that minimize broadleaf impact and optimize conifer stand growth and yield (GY) with the goal of supporting a sustainable...
A Functional Framework for Improved Management of Western North American Aspen (Populus tremuloides Michx.)
Quaking or trembling aspen (Populus tremuloides Michx.) forests occur in highly diverse settings across North America. However, management of distinct communities has long relied on a single aspen-to-conifer successional model. We examine a variety of aspen-dominated stand types in the western portion of its range as ecological systems, avoiding an exclusive focus on seral dynamics or single-species management. We build a case for a large-scale functional aspen typology based on the existing literature. Aspen functional types are defined as aspen communities that differ markedly in their physical and biological processes. The framework presented here describes two “functional types” and seven embedded “subtypes”:...
This chapter deals with the continental boreal forest of Canada from the Yukon Territory to Quebec, a 500-1500-km wide band, 3 million km super(2), larger than all other forest types in Canada combined. Other boreal forest regions with distinctive ecological and management contexts will be discussed elsewhere in this book, including interior Alaska in Chapter 17, Cape Breton, and Newfoundland and Labrador in Chapter 20, and Fennoscandia in Chapter 24.