A comparison of measurements of the standing crops of biomass and nutrients in a conifer stand in Nova Scotia

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Abstract
A comparison is made of the realized and potential harvest removals of biomass and nutrients (N, P. K. Ca, and Mg) in a red spruce (Picearubens Sarg.) dominated stand, as estimated by experimental harvest of two 0.5-ha plots, and through the use of biomass regressions and a stratified mean-tree approach. The latter two calculations gave estimates of potential harvest removal (standing crop) that were similar to each other, but that were higher than the removals estimated by the harvest method by an average of 29% for whole-tree biomass, 84% for N. 58% for P. 28% for K. 45% for Ca. and 41 % for Mg. The differences are attributed to incomplete recovery of aboveground biomass by the experimental harvests, and to a tendency of regression techniques to overestimate standing crops.

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