The Spruce bog: an essay in ecology

Canada, 1956

Film
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Describes the conditions under which a spruce bog is formed, with details of the plant types found at successive stages of development from open water to mature spruce forest. Time-lapse photography illustrates the growth and decay of vegetation preceding the appearance of sphagnum moss which chokes off water to make the floor of the forest. Discusses the commercial use of peat extracted from such bogs, and the value of black spruce to Canada’s pulp industry. Written by J.V. Durden. Photography by Dalton Muir. Editing by J.V. Durden. Music by Robert Fleming. Sound by George Croll. Voice and Narration by Geoffrey Hogwood. (Award: Salerno)

Credits

director

Dalton Muir

co-producer

Guy Glover

J.V. Durden

production company

National Film Board of Canada

Language

English

Duration

00:22:00:00

Colour

Colour

ACMI Identifier

28853

Subject categories

Agriculture, Business, Commerce & Industry → Industries - Canada

Anthropology, Ethnology, Exploration & Travel → Canada - Description and travel

Climate, Environment, Natural Resources & Disasters → Botany

Climate, Environment, Natural Resources & Disasters → Ecology - Canada

Climate, Environment, Natural Resources & Disasters → Forests and forestry - Canada

Climate, Environment, Natural Resources & Disasters → Natural history

Climate, Environment, Natural Resources & Disasters → Plants

Climate, Environment, Natural Resources & Disasters → Wetland ecology

Documentary

Documentary → Documentary films - Canada

Short films

Short films → Short films - Canada

Sound/audio

Sound

Holdings

16mm film; Access Print (Section 1)

16mm film; Limited Access Print (Section 2)

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