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Fig. 9 | Forest Ecosystems

Fig. 9

From: Optimal plot design in a multipurpose forest inventory

Fig. 9

The weighted mean of relative standard errors for mean volume, basal area and stems per ha as a function of plot radius (maximum radius for relascope plots). The number of plots is based on a budget of 420 min for one cluster. Assumed costs (Equation 3) are LT = 15, BT = 0.5, TT = 0.5 and ST = 4.5 min. The optimal number of plots for a cluster using the optimal plot type and size (marked with an arrow) is 19

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