Revegetation of Oil Sands Tailings: Growth Improvement of Silver-berry and Buffalo-berry by Inoculation with Mycorrhizal Fungi and N2-fixing BacteriaReportar como inadecuado

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Tar Sands, RRTAC 88-3, Oilsands, Alberta, Shrubs, Oil Sands, Tarsands, Mycorrhizae, Greenhouse, RRTAC, Microbiology

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Subject-Keyword: Tar Sands RRTAC 88-3 Oilsands Alberta Shrubs Oil Sands Tarsands Mycorrhizae Greenhouse RRTAC Microbiology

Type of item: Report

Language: English

Place: Canada, Alberta, Fort McMurray


Description: The ability of actinorhizal shrubs to tolerate inhospitable conditions while improving soil fertility and organic matter status has led to increased usage of these plants for land reclamation and amenity planting purposes. Silver-berry and buffalo-berry are two such shrubs which are being tested as potential candidates for the revegetation of the oil sands tailings in northeastern Alberta. Associated with the roots of silver-berry and buffalo-berry are two symbionts the N2-fixing actinomycete, Frankia, and the vesicular-arbuscular mycorrhizal VAM fungi. Numerous studies have demonstrated that, particularly in nutrient limited conditions, mycorrhization and nodulation can result in significantly better plant performance as a consequence of improved N and P nutrition. The benefits conferred on the host by the symbionts may assume even greater importance in the revegetation of mine tailings which are notoriously nutrient-poor. In addition to reducing soil fertility, the upheaval and mixing of soil during the mining process can lower Frankia and VAM inoculum levels. Both soil fertility and symbiont inoculum potential can be improved by introducing an organic amendment to the minespoil. Soil reconstruction on the oil sands tailings is facilitated by the application of muskeg peat which is stockpiled on the site for reclamation purposes. Alternatively, if woody plants are raised as containerized seedlings they can be inoculated with both their N2-fixing and mycorrhizal symbionts prior to being outplanted. However, before embarking on a large-scale inoculation program which will ultimately raise the cost of producing a seedling, factors such as plant dependency on the symbionts, the level of and mycorrhizal inoculums in the outplanting soil and the nodule-mycorrhizal status of containerized seedlings leaving commercial greenhouses should be considered.

Date created:

DOI: doi:10.7939-R3125QC9Q

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Rights: This material is provided under educational reproduction permissions included in Alberta Environment and Sustainable Resource Development's Copyright and Disclosure Statement, see terms at This Statement requires the following identification: \The source of the materials is Alberta Environment and Sustainable Resource Development The use of these materials by the end user is done without any affiliation with or endorsement by the Government of Alberta. Reliance upon the end user's use of these materials is at the risk of the end user.

Autor: Visser, S. Danielson, R. M.



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The Council executive consists of a Chairman from the Department of Forestry, Lands and Wildlife, Among other functions, the Council oversees programs for reclamation of abandoned disturbances and reclamation research, The Reclamation Research Program was established to provide answers to the many practical questions which arise in reclamation. Funds for implementing both the operational and research programs are drawn from Albertas Heritage Savings Trust Fund. To assist in technical matters related to the development and administration of the Research Program, the Council appointed the Reclamation Research Advisory Committee (RRTAC). The Committee first met in March 1978 and consists of eight members representing the Alberta...

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