A New Basis for Understory Stocking Standards for Partially Harvested Stands in the British Columbia Interior
Authors: Patrick J. Martin1; Bryce Bancroft2; Ken Day3; Kim Peel4
Source: Western Journal of Applied Forestry, Volume 20, Number 1, January 2005 , pp. 5-12(8)
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: Regeneration; stocking standards; British Columbia; growth and yield; partial harvest; regulation; policy; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resources; natural resource management
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
