Search Results
Displaying:
281 - 300 of 618
Health of North American Forests
Resource
Forests are environmentally and economically important in North America, and forest health is monitored to enable policy decisions to be made on factors affecting forest health. Forests are subject to...
Hemlock Woolly Adelgid
Resource
The hemlock woolly adelgid ( Adelges tsugae) is an introduced pest of hemlock trees in eastern Canada and the eastern United States. Hemlock woolly adelgid is also present in British Columbia but is a...
High-Resolution Interpolation of Climate Scenarios for Canada Derived from General Circulation Model Simulations
Resource
Projections of future climate were selected for four well-established general circulation models (GCMs) forced by each of three greenhouse gas (GHG) emissions scenarios recommended by the...
How Climate Change Might Affect Tree Regeneration Following Fire at Northern Latitudes: A Review
Resource
Climate change is projected to increase fire severity and frequency in the boreal forest, but it could also directly affect post-fire recruitment processes by impacting seed production, germination...
How Does Canada Report on Forest GHG Emissions?
Resource
Each year, the Canadian Forest Service (CFS) provides estimates of the amount of carbon in our managed forests and the changes in these amounts over time. Environment and Climate Change Canada (ECCC)...
Impact of Air Pollutant Mixtures on Forest Vegetation and Soils
Resource
No impact on jack pine physiology was found when concentrations of the dominant pollutants from Oil Sands operations equivalent to 104 years of soluble disposition were added to intact soil cores
Impacts of a Stump Uprooting Operation on Properties of a Calcareous Loamy Soil and on Planted Seedling Performance
Resource
Six hundred Douglas-fir (Pseudotsuga menziesii) and 600 lodgepole pine (Pinus contorta var. latifolia) seedlings were planted on seven plots in a cutover north of Golden, British Columbia, to...
Impacts of Blading and Burning Site Preparation on Soil Properties and Site Productivity in the Sub-Boreal Spruce Zone of Central British Columbia
Resource
We investigated soil factors and tree growth on sites that were clearcut during the 1970s and early 1980s and were subsequently site prepared with either blade scarification (blading) or prescribed...
Impacts of Climate Change on Photosynthesis and Carbon Sequestration / Impactes des changements climatiques sur la photosythèse et le piégeage du carbone
Resource
Global warming may cause photosynthesis to start earlier. As the climate warms, spring arrives earlier and fall ends later. This change in temperature affects how trees grow. Gretta Goodine of the...
Impacts of Cross-Contour Skidroads on Properties of a Gravelly Sandy Loam Soil and on Planted Seedling Performance
Resource
Soil conditions, growth of 1200 planted seedlings each of lodgepole pine ( Pinus contorta var. latifolia) and Douglas-fir ( Pseudotsuga menziesii), and development of other vegetation were studied to...
Impacts of Different Methods of Mechanical Site Preparation on Foliar Nutrients of Planted White Spruce Seedlings
Resource
The impacts of different methods of mechanical site preparation (MSP) treatments on foliar nutrients of planted plug+ 1 white spruce seedlings were examined at two mixed-wood boreal forest sites (Judy...
Impacts of Major Pests on Forest Growth and Yield in the Prairie Provinces and the Northwest Territories: A Literature Review
Resource
Literature pertaining to the impact of forest pests on timber productivity in the prairie provinces and Northwest Territories is reviewed. The discussion of impact is largely confined to growth loss...
Impacts of Soil Disturbance on Roots Systems of Douglas-fir and Lodgepole Pine Seedlings
Resource
One hundred and sixty-two lodgepole pine ( Pinus contorta var. latifolia) and 162 Douglas-fir ( Pseudotsuga menziesii var. glauca) seedlings were excavated in a clearcut north of Golden to ascertain...
Impacts of Stump Uprooting on a Gravelly Sandy Loam Soil and Planted Douglas-fir Seedlings in South-Coastal British Columbia
Resource
Studies to determine levels and impacts of soil disturbance caused during root-disease control by stump removal were initiated on a cutover on southern Vancouver Island immediately prior to the...
In Brief, Number 10
Resource
Topics covered: A silvicultural approach more suited to boreal forests Defining old-growth forests within boreal forests Do ecological region and drainage have an impact on the site quality index of...
In Brief, Number 37
Resource
Topics covered: Impact of planting density on stem shape in jack pine. The role of gravity in the development of white spruce. Taking heath and moss into account in the management of black spruce...
In Search of a Critical Habitat Concept for Woodland Caribou, Boreal Population
Resource
A hierarchical approach to critical habitat identification has been proposed in the draft National Recovery Strategy for the Woodland Caribou (Rangifer tarandus caribou), Boreal Population. This...
Influence of Forest Management Activities on Soil Organic Carbon Stocks: A Knowledge Synthesis
Resource
Almost half of the total organic carbon (C) in terrestrial ecosystems is stored in forest soils. By altering rates of input or release of C from soils, forest management activities can influence soil...