Year 3 - Growth and Release of Understory Trees in Partially-Cut Pine Stands EP 591
Project Reference Number: 2009-10
Project Status: Complete
Led by: Dave Coates, PhD, Research Silviculturist, Ministry of Forests, Lands and Natural Resources, Smithers
Funder: Forest Investment Account - Forest Science Program
In 1962, 15 experimental plots (EP 591) were established to investigate the development of planted, seeded, and naturally regenerated spruce in partially-cut pine stands. The experiment has since been measured four times but the results have never been complied or analyzed. Within the past two years most overstory trees have been attacked by the MPB. In this project, we compile and analyze the 40-year data prior to the MPB attack and re-measure the plot to evaluate understory release after MPB. Our current forest management paradigm calls for increased focus on complex stand management. To evaluate and plan complex stand management, forest managers require additional knowledge related to growth of understory trees and growth release after a disturbance to the overstory. This project will improve our understanding of understory tree growth and release.
Current Year Objectives:
(1) To compile the existing data from EP 591.
(2) To re-measure the experiment.
(3) To further our knowledge of planted, seeded and naturally regenerated understory trees in partially cut stands.
Long Term Objectives:
(1) To further our understanding of how different partial cutting strategies influence understory development.
(2) To further our knowledge of understory release after MPB attacks.
(3) To improve our knowledge of different silvicultural systems and their effect on growth and yield.
|Publication Date||Report Title||Authors|
|April 2010||Growth and release of understory spruce in partially-cut pine stands||M.-L. Lefrançois, K.D. Coates, R. Astrup, E. Hall, A. Trowbridge and B. Henderson|