Native Plants for Site Restoration PART 1 David Polster, M.Sc. - - PowerPoint PPT Presentation

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Native Plants for Site Restoration PART 1 David Polster, M.Sc. - - PowerPoint PPT Presentation

Apr 03, 2023 182 likes •676 views

Native Plants for Site Restoration PART 1 David Polster, M.Sc. R.P.Bio Polster Environmental Services Ltd. CP Rails Rogers Pass Project, 1983 - 1989 Detailed reclamation plans developed for each section of the project. Followed

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Native Plants for Site Restoration

David Polster, M.Sc. R.P.Bio

Polster Environmental Services Ltd.

PART 1

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CP Rail’s Roger’s Pass Project, 1983 - 1989

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Detailed reclamation plans developed for each section of the project. Followed successional patterns identified in the surrounding

  • area. Incorporated the

requirements of the rail line in the revegetation design.

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The first contract let on the Roger’s Pass Project was for the collection of seeds and propagules from the local area. Over 1,000,000 local native plants were planted, more than half of which were alder. This was the first major native plant purchase in Western Canada and provided a start to several native plant nurseries.

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Alder was the main species that was planted…

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…but a wide variety of species were used…

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…for specific sites.

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Native species planting was a major part of the restoration program.

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Tree & shrub planting Connaught tunnel muck, fall 1984

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Connaught tunnel muck, July 22, 1986

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Connaught tunnel muck, July, 1989

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Connaught tunnel muck 1992 1996

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Connaught tunnel muck understory, September 16, 1996

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Connaught tunnel muck warm in spring, May 24, 1994

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Connaught tunnel muck cool in summer, August 26, 1992

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Connaught tunnel muck, July 16, 1999

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Connaught tunnel muck, July 10, 2005

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Connaught tunnel muck, July 10, 2005

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Connaught tunnel muck, July 24, 2006

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Connaught tunnel muck, August 1, 2009

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West Portal, Planting in 1989 Rough and loose…

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West Portal, 1989

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West Portal tree & shrub planting, 1989

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West Portal August 25, 1992

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West Portal August 5, 1997

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West Portal July 15, 1999

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West Portal August 3, 2003

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West Portal July 8, 2005

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West Portal July 27, 2008

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West Portal September 17, 2011, 22 years after planting.

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West Portal September 17, 2011

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West Portal September 17, 2011

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Viola praemorsa Somenos Species at Risk

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Triteleia howellii Species at Risk

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Planting native species

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Over 80,000 native grasses and forbs planted to “re-stitch the fabric of the ecosystem”

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Use of nitrogen fixing pioneering species to enhance forest productivity at Quinsam Coal Mine

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Tests at Quinsam Coal Mine, 1982

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Tests using nitrogen fixers at Quinsam Coal Mine, 1983

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Tree planting at Quinsam Coal Mine, 1983 Soil bioengineering at Quinsam Coal Mine, 1982

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Soil bioengineering at Quinsam Coal Mine, 2007

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Assessment of forest productivity Quinsam Coal Mine, 2007 Natural forests

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Height vs. Age 2007

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Natural sites have an average growth rate of 0.54 m/yr

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Trees on the trial site have an average growth rate of 0.69 m/yr

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Planting strategy based on trial results, July 31, 2007

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By following the successional model of the forests around the site we can make reclamation a profit centre...

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...and the trees just jump out of the ground, even on mine wastes, July 17, 2009…

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...although deer browsing continues to be a problem, June 7, 2011.