White Spruce Regeneration on a Blade-Scarified Alaskan Loess Soil
Northern Journal of Applied Forestry
Society of American Foresters
Following hardwood removal from a mixed spruce-birch-aspen forest stand, portions of the stand were blade-scarified to encourage natural white spruce regeneration. Six years after treatment the number and height of white spruce seedlings were significantly greater on scarified than on unscarified plots. Whereas 100% of scarified sample plots contained five or more seedlings, 73% of unscarified plots contained no seedlings. Exposure of mineral soil and removal of grass competition are essential for the satisfactory natural regeneration of white spruce. Detailed regeneration surveys should not be considered for white spruce until seedlings are 15 cm tall, typically the fifth or sixth year after site preparation. North. J. Appl. For. 7:121-123, September 1990.
Packee, E. C. 1990. White spruce regeneration on a blade-scarified Alaskan loess soil. Northern Journal of Applied Forestry. 7 (3): 121-123.