Development of cost effective amendment technologies and restoration protocols for remediation and restoration of mine impacted sites is strongly needed in northern Canada. One of the first steps in developing successful restoration protocols is to determine and development appropriate local native plant species and soil amendments.
Kaminak Gold Corporation is currently developing a multi-million ounce, high-grade oxide gold district that is amendable to heap leaching, known as the Coffee Gold Project. The Coffee project is located in west-central Yukon Territory, approximately 130km south of Dawson City. As environmental monitoring proceeds, Kaminak Gold Corporation would like to concurrently develop restoration protocols and capacity for the Coffee Gold site. The objective of this research project was to determine target plant species and techniques for the restoration of a northern mine impacted site. Determination of target plant species included surveys of natural regeneration of existing disturbed areas and creation of a seed source map for target species. By working with Tr'ondek Hwech'in elders we included both scientific and traditional ecological knowledge in the final seed source map product, creating a resource for both industry and the local community. Site-specific restoration techniques were examined through re-vegetation and soil amendment trials on drilling fences and a nitrogen-fixing species greenhouse trial.
In addition to providing important information for future mine site restoration; this project provided a unique approach to integrating research and education to simultaneously build scientific knowledge and local capacity. The research project was developed concurrently with a 12 day education course (Northern Terrestrial Restoration) offered through a collaboration between the Yukon Research Centre and the Centre for Northern Innovation in Mining at Yukon College. This course was delivered on-site with support from Kaminak Gold Corporation. The Northern Terrestrial Restoration course offered local First Nations students the opportunity to gain research experience in experimental design, field sampling techniques, as well as, native seed collection, preparation and storage providing a foundation for future local community involvement in restoration and horticulture of native plants. Through directly integrating research and education we aim to take the first steps in not only identifying, preserving and testing materials for restoration of the Coffee Gold Project, but also in determining effective restoration protocols and building capacity for native plant horticulture in Yukon communities.
Dr. Katherine Stewart, Research Associate, Yukon Research Centre, Yukon College
Kaminak Gold Corporation
Centre for Northern Innovation in Mining, Yukon College
Natural Sciences and Engineering Research Council of Canada (NSERC)