Alternate Strip Clearcutting in Upland Black Spruce: IV. Projected Nutrient Removals Associated with Harvesting
- 1 December 1987
- journal article
- Published by Canadian Institute of Forestry in The Forestry Chronicle
- Vol. 63 (6) , 451-456
- https://doi.org/10.5558/tfc63451-6
Abstract
Nutrient removals associated with conventional, full-tree, and whole-tree harvesting on 100-year rotations in an upland boreal black spruce stand in northern Ontario were estimated. Conventional (stems only) logging would remove 219 kgha−1 of Ca, 62 of N, 36 of K, 18 of Mg and 9 of P from the site. Increased utilization of phytomass during full-tree harvesting, in comparison with conventional logging, could result in as much as a 400% increase in N removal and a 60% increase in Ca removal. Estimates of projected N and K removals by full-tree harvesting may be conservative, relative to those in other black spruce stands because of the low foliar mass of this forest. The forest floor contained 51% to 72% of the soil's reserves of nutrients, except for P, within the effective rooting zone. Post-harvesting site preparation methods should be restricted to those that ensure that forest floor nutrient reserves are retained on site.Keywords
This publication has 1 reference indexed in Scilit:
- Growth Response of a Boreal Black Spruce Stand to Fertilizer TreatmentsNorthern Journal of Applied Forestry, 1986