Wetlands Knowledge Search Results
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Forest biomass is the second-largest renewable energy resource in Canada, representing a major pool in the global carbon budget, but better estimates of forest biomass are needed. In the 1980s...
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Authors
V.F. Haavisto
J.W. Fraser
C.R. Mattice
Viability of black spruce ( Picea mariana [Mill.] B.S.P.) seeds after dispersal in nature or by man may be a crucial factor affecting regeneration of the species on boreal forest seedbeds. Some...
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Trees are constantly exposed to a multitude of micro-organisms, but only a few are capable of causing disease. When trees come under attack from micro-organisms, their primary line of defence is a...
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Authors
Barbara Darroch
Reinhard Hermesh
Disturbances of alpine and subalpine regions are increasing. They result from mining, pipeline and transportation corridor construction, tourism and other activities. Presently, there are no...
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Breeding programs and strategies for four major tree species of Canada are presented, including Douglas-fir ( Pseudotsuga menziesii (Mirb.) Franco), jack pine ( Pinus banksiana Lamb), the larch...
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This report is a review of published literature on calcareous soils and their role in the productivity of coniferous forests in southwestern British Columbia and western Alberta. Definitions, origins...
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Authors
Chris Powter
Brent Scorfield
Brent Lakeman
Shane Patterson
The development of integrated geomatics and remote sensing technologies for environmental management holds promise to meet economic diversification and effective environmental management.
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Authors
J. Buss
A. Dabros
K. L. Higgins
H. E. J. Hammond
J. Pinzon
D. W. Langor
The industrial footprint of oil and gas extraction in Alberta, Canada dissects the landscape in a network of linear and polygonal disturbances such as roads and well pads. The changes to biotic and...
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Authors
Roger Whitehead
F. Cortini
S.W. Taylor
A.F. Linnell Nemec
J.W. Goudie
J. Vallentgoed
K.R. Polsson
The Stony Lake trial was established in 1987 to benchmark growth performance of interior spruce ( Picea glauca [Moench] Voss x engelmannii Parry ex Engelm.) and lodgepole pine ( Pinus contorta Dougl...
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Magnificent coniferous forests cloak all but the highest peaks and most arid interior valleys of British Columbia. Conifers are dominant in each of the province's varied forest ecosystems, from the...
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Authors
Nature Conservancy of Canada
Conservation Assessment for Southern Canada The Nature Conservancy of Canada (NCC) has completed a comprehensive assessment of the conservation needs and opportunities in southern Canada. The first of...
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Authors
Julie Singleton
Judy Loo
John Foley
This manual provides management guidelines aimed at protecting biodiversity in ecologically sensitive sites found on private woodlots within the 420 000-ha Fundy Model Forest of southeastern New...
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Between 1960 and 1966, 21 planting and 14 seeding trials were established to convert aspen stands to spruce-aspen mixedwoods in three Manitoba Forest Management Sections. Scalped strips, varying in...
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Authors
Rona Sturrock
Ann Braybrooks
Pamela Reece
An overview of literature relevant to decay in living western redcedar is provided. Despite the species’ reputation for decay resistant heartwood, living western redcedar trees frequently have...
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Annosus root and butt rot was first reported in Quebec in 1989. The causal fungus enters a pine stand by colonizing the surface of freshly cut stumps. The disease spreads through contact between the...
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Authors
John Trofymow
Philip-Edouard Shay
Bradley Tomm
Jean Berube
Tod Ramsfield
Fungi play key roles in forest soils and provide benefits to trees via mycorrhizal symbioses. After severe disturbance, forest regrowth can be impeded because of changes in fungal communities. In 2013...
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This study examines the relationship between seed production, soil scarification and seedling establishment in balsam fir ( Abies balsamea [L.] Mill.) and white spruce ( Picea glauca [Moench] Voss)...
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Authors
P. Salonius
K. Beaton
B. Roze
This study examined the effects of nursery rearing in an array of 51 individual fabricated frames that supported a range of six growing cell sizes at 11 plant spacings in all possible combinations. A...
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Authors
H. E. Seely
N. C. Coops
J. C. White
D. Montwe
L. Winiwarter
A. Ragab
Airborne laser scanning (ALS) data has been widely used for total aboveground tree biomass (AGB) modelling, however, there is less research focusing on estimating specific tree biomass components...
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Invasions by alien organisms into new habitats pose one of the most significant global threats to ecosystem biodiversity and serious threats to economies around the globe. Canada, with its vast...