Summary:
Published in Annals of Forest Science 60: 645-655
In Québec (Canada), the use of large planting stock is being applied in combination with scarification, since herbicide use is forbidden in public forest. Large containerized and bare-root stock of black spruce were planted on two sites located within the sub-boreal mixedwood region of eastern Québec. We analyzed data to detect main effects and interactions among scarification, competing vegetation and stock type on seedling growth and physiology during the first three growing seasons. Scarification did not improve seedling water relations, third-year height and ground-level diameter, and foliar nutrient concentration. After three years, the two stock types showed similar water relations and nutritional status but the large containerized seedlings performed slightly better than the large bare-root stock in terms of diameter and height growth. Competing vegetation greatly reduced seedling diameter, foliar-N concentration, compared to competition-free seedlings. We discuss results in relation with treatment effects on above- and belowground resource availability to newly planted conifers.
Sector(s):
Forests
Catégorie(s):
Scientific Article
Theme(s):
Forestry Research, Forests, Silviculture
Author(s):
THIFFAULT, Nelson, Robert JOBIDON and Alison D. MUNSON
Year of publication:
2003
How to get the publication:
Keyword(s):
scarifiage, compétition, PFD, croissance, potentiel hydrique, xylème, plantation, Picea mariana, résineux, plant, récipient, sylviculture des plantations, silviculture of plantations, scarification, competing vegetation, large seedling, growth, xylem water potential, épinette noire, black spruce, silviculture and yield of plantations