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Some Chemical and Physical Properties of Soil Materials Associated with the Reclamation of Mined Tar Sands Areas
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This document consists of two tables providing chemical and physical properties of soil, peat, overburden, spent sand and lean tar sand from Syncrude and Suncor.
Some Methods for Treating Tar Sands Tailings: Part 1 - Laboratory Application of CO2 Process and Related Testing of Type "X" Treatment
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This report describes some novel experiments adding CO2 to liquid tailings from the G. C. O. S. plant, which may lead to an economically feasible tailings treatment process
Some Methods for Treating Tar Sands Tailings: Part 2 - Theory of CO2 Process
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Part 2 of the report deals with the theoretical aspects of the reactions between carbon dioxide and tailings.
Source of Growth Variability in Interior Douglas-fir
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To assess the growth of the uneven-aged stands of Douglas-fir in the Interior Douglas-fir zone of British Columbia, and the factors influencing the growth, data from 92 permanent sample plots were...
Southern Vancouverian Dry Foothill Forest & Woodland
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The Canadian National Vegetation Classification (CNVC) is an ecological classification of natural and semi-natural Canadian vegetation. The classification is a hierarchical taxonomy, describing...
Species Distribution and Habitat Relationships of Waterfowl in Northeastern Alberta
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Spring-staging totals for two surveys for this year were 1000 and 3600 ducks. Five fall-staging surveys revealed a total of from 11 000 to 24 000 ducks.
Spent Oil-sand Fertility Study
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Physical and chemical analyses of spent sand indicate that this material is very infertile. The spent sand samples analysed had an average pH of 7.2 and low Na content
Spongieuse
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La spongieuse ( Lymantria dispar) est un insecte défoliateur non indigène naturalisé. La spongieuse a une prédilection pour le chêne, mais elle s’attaque à plusieurs autres essences d’arbres indigènes...
Spongy Moth
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Spongy moth ( Lymantria dispar) is a naturalized non-native pest that prefers oak leaves, but it can defoliate several other tree species native to Canada. Repeated high rates of defoliation by spongy...
Stand Development After Partial Cutting of Mature Mixed Stands of White Spruce and Aspen in Manitoba
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One-hundred-year-old mixed white spruce–aspen stands were partially cut in 1953, 1954, and 1955 and scarified leaving treatments that retained 14–100% of total stand basal area. Composition of the...
Stem Rusts of Pine
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Forest Pest Leaflets are a series of about eighty publications dealing with insects, tree diseases, and other problems affecting the growth, survival, and general health of forests. Each leaflet...
Studies in Recolonization of Stream Substrates by Aquatic Organisms
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Colonization of limestone gravel, limestone gravel + organic matter, and limestone gravel from a river bed was followed over time to compare two possible stream reclamation substrates with a control
Successful Tree Planting
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This maintenance schedule outlines the care that trees need in each season. It can be used as a checklist year after year. You can adapt it to your local area and the specific needs of your project.
Succession forestière de la sapinière à bouleau jaune du Bas-Saint-Laurent
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In Quebec, the bioclimatic zone of balsam fir-yellow birch covers an area of 94,768 km 2. Some of the forest cover types in the area, such as balsam fir-yellow birch, are among the most productive in...
Successional Changes in Plant Species Diversity in Forest Chonosequences on Southern Vancouver Island
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Six chronosequences were established on southern Vancouver Island, British Columbia, to address the concerns regarding the potential loss of species diversity and increased risk to rare or old-growth...
Summary of Lichen Field Work from Quebec to Labrador
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This report summarizes the work that was completed by NRCan personnel and project partners at eleven study sites within Quebec and Labrador between July 22 and August 2, 2019. This work was conducted...
Summary Report: Athabasca River Pollution Survey 1968-1969
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presents the summary of water quality in the Athabasca River during six sampling surveys (including a site at Fort McMurray, Tar Island, above G.G.O.S.)
Summary Report: Athabasca River Pollution Survey 1969-1970
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Water quality in the Athabasca River and tributaries was found to be generally acceptable throughout the winter of 1969/70. However, relatively high odor and colour values were observed on occasions
Summary Report on Athabasca River Power Development Crooked Rapids Site Study
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Consultants were requested to carry out preliminary studies to determine the technical feasibility and estimated cost of constructing a dam on the Athabasca River in the vicinity of Crooked Rapids.