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Understorey vegetation response following restoration of ingrown ponderosa pine and douglas-fir stands in the East Kootenay region by Newman, Reg F. is a nonfiction available to read on EtoBox.

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"The response of understorey vegetation was monitored over a 7-year period following restoration of ingrown stands of ponderosa pine (Pinus ponderosa) and interior Douglas-fir (Pseudotsuga menziesii var. glauca) in the East Kootenay region of British Columbia. The restoration was based on a prescription of partial cutting and slashing in 1999 and 2000. The ponderosa pine site was also subjected to a prescribed fire in April 2004. At the ponderosa pine site, total herbaceous biomass doubled over a 6-year period on areas where treatments increased understorey light by 32-44%. Most of the forage increase was due to grass biomass, including pinegrass (Calamagrostis rubescens) and bunchgrasses. The forage response developed over time after an initial lag of 2-4 years and was most evident by years 5 and 6 following treatment. A regression model derived from 2006 herbaceous biomass/light relationships at the ponderosa pine site predicted that 80% canopy removal is required to achieve 50% of the forage potential for the site. Despite an increase in herbaceous biomass, the frequency of most plant species was not different on more open canopy areas compared to those with a relatively more cl

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Author

Newman, Reg F.

Publisher

Forest Science Program, 2012.

Published

2012

Language

EN

ISBN

9780772665744

Category

nonfiction