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A New Basis for Understory Stocking Standards for Partially Harvested Stands in the British Columbia Interior

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Abstract:

For partially harvested stands in the British Columbia interior, we present a new method for specifying regeneration stocking standards and a procedure for comparing achieved regeneration to the standard. Understory stocking is assessed in terms of the deviation from potential yield that the observed understory tree density represents. For a harvested area, the minimum stocking standard is stated as the maximum allowable mean deviation from potential. Deviation from potential is expressed on a relative (0–1) scale and predicted from overstory basal area and understory tree density. Because of a scarcity of calibration data, we undertook a crude, preliminary calibration of this relationship. As overstory basal area increases, the understory density required to achieve a given degree of understory stocking decreases. Issues pertaining to the stand management context and other approaches to regulating regeneration also are discussed. West. J. Appl. For. 20(1):5–12.

Keywords: British Columbia; Regeneration; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; growth and yield; natural resource management; natural resources; partial harvest; policy; regulation; stocking standards

Document Type: Regular Article

Affiliations: 1: BC Ministry of ForestsBox 9513 Stn. Prov. Govt.Victoria BC Canada V8W 9C2 Phone: (250) 356-0305;, Fax: (250) 387-2136, Email: Pat.Martin@gems8.gov.bc.ca 2: Symmetree Consulting Group Ltd. 6301 Rodolph Road Victoria BC Canada V8Z 5V9 3: University of British Columbia Research Forest 72 South 7th Avenue Williams Lake BC Canada V2G 4N5 4: Ligum Ltd. 180 Hodgson Road Williams Lake BC Canada V2G 3P6

Publication date: January 1, 2005

More about this publication?
  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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