Canadian Forest Service Publications

Characteristics of Douglas-fir root systems. 1963. McMinn, R.G. Canadian Journal of Botany 41(1): 105-122.

Year: 1963

Issued by: Pacific Forestry Centre

Catalog ID: 23910

Language: English

Availability: PDF (request by e-mail)

Available from the Journal's Web site.
DOI: 10.1139/b63-010

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The root systems of 28 Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) in four stands, aged 10, 25, 40, and 55 years, were excavated hydraulically to determine the rooting characteristics of trees in different crown classes at various ages. The extent, depth, configuration, rooting density, and mycorrhizal component of root systems were examined. The significance of the characteristics observed is discussed in relation to silviculture, nursery practice, and forest pathology.