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Benefits of Fertilization for White Spruce and Lodgepole Pine Trees Depend on the Reclamation Substrate – Overburden vs Tailings Sand
Resource
Nitrogen and complete fertilizer applications improved growth of white spruce on overburden sites. Fertilization did not, however, have an effect on lodgepole pine growth on tailings sand sites
Boreal Trees Can Grow on Saline Sites – Implications for Reclamation Success on Saline Soils
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Both aspen and spruce grew on sites with very high salinity and pH deeper in the soil profile (i.e., 40-100cm), so long as surface soils were not highly saline and had adequate moisture and nutrients.
Can Plant or Lichen Natural Abundance 15N Ratios Indicate the Influence of Oil Sands N Emissions on Bogs?
Resource
The 140,329 km 2 Athabasca Oil Sands Administrative Area (OSAA), which contains 8982 km 2 of bogs. Since the late 1970s, N emissions from oil sands development in the OSAA have steadily increased...
CEMA Resources Available Online
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The Cumulative Environmental Management Association (CEMA) was a leading multi-stakeholder group operating in the heart of Canada’s boreal forest - the Regional Municipality of Wood Buffalo, Alberta...
Coarse Woody Debris Increases Microbial Functional Diversity in Reclaimed Soils
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Forest floor mineral soil mix had significantly greater soil microbial functional diversity than peat mineral soil mix. CWD increased microbial biomass and microbial functional diversity in both soil
Deeper Soil Salvaging Depths Produce Greater Cover of Native Plants than Shallow Salvage Depths on a Reclaimed Coal Mine Site
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The deeper soil salvage depth (40 cm) was better than the shallow salvage depth (15 cm) at establishing a forest understory plant community characteristic of the boreal forest.
Plow-in Pipeline Construction Improves Recovery of Rough Fescue Grassland
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Plow-in pipeline approach resulted in a fescue-bluegrass vegetation community that had the best rough fescue recovery and greatest similarity to undisturbed natural grassland
Prioritization can Improve Cost Effectiveness of Seismic Line Restoration
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Upland mesic sites showed a relatively strong ability to regenerate on their own (passive restoration), while lowland (bogs and fens) and upland dry sites were slow to recover.
Protecting Forest Floor in Place Rather than Stripping it Off is a Better Strategy to Regenerated Temporary Drilling Pads
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Where forest floor was protected from disturbance, there were approximately 10 times as many aspen sprouts that were at least 3 times as tall as sprouts in the area where floor was stripped & replaced
Rat Root Plants May Not be Suitable for Reclaiming Oil Sands Tailing Ponds
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This study tested the ability of rat root to grow in a high pH/high salinity environment, similar to that of a constructed oil sands tailings pond wetland.
Reconstructed Soils in Alberta Oil Sands Limit Fine Root Growth of Trees
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Tailings sand sites: fine root biomass decreased with depth and proximity to the textural interface. Overburden sites: fine root biomass decreased abruptly at the textural interface and EC increased
Research as Reciprocity: Northern Cree Community-Based and Community-Engaged Research on Wild Food Contamination in Alberta’s Oil Sands Region
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In this paper, the author suggests that it is possible to participate in research as an act of reciprocity; when a community asks a researcher for help on a specific topic, the application of that...
Revealing the Hidden Carbon in Forested Wetland Soils
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Inland wetlands are critical carbon reservoirs storing 30% of global soil organic carbon (SOC) within 6% of the land surface. However, forested regions contain SOC-rich wetlands that are not included...
Scott Ketcheson
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Assistant Professor, Canada Research Chair in Hydrological Sustainability
Soil Salvage Depth is Key to Aspen Root Fragment Survival and Sucker Regeneration in Forest Reclamation
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Aspen sucker production from root fragments was 3X higher at salvage/placement depth of 40 cm compared to 15 cm. Successful suckering occurred in root fragments with little damage in upper 20 cm soil
Temporary Drilling Pads From Oil Sands Exploration Require Microtopography for Restoration
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Differences in microtopography were associated with differences in plant species richness and composition between OSE pads and the undisturbed sites.
Using Perceptions as Evidence to Improve Conservation and Environmental Management
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The conservation community is increasingly focusing on the monitoring and evaluation of management, governance, ecological, and social considerations as part of a broader move toward adaptive...
Webinar - Towards Understanding the Influence of Headwater Catchments on Water Availability in the Athabasca River Basin
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This presentation highlights the importance of northern Alberta’s “mountains” and wetlands on sustaining water flows in local streams and regional rivers in the Athabasca River Basin.