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Fig. 2 | Forest Ecosystems

Fig. 2

From: The effect of spatial structure of forests on the precision and costs of plot-level forest resource estimation

Fig. 2

Precision versus expected costs for different fixed radii (maximum radius between 3 and 11 m), relascope (basal area factors from 1 to 3), and concentric plots (dbh limit from 5 to 15 cm) sample plots for the estimation of basal area and tree density in clustered and regular forest plots of different development classes (see text for description). The precision has been measured by the standard deviation (sd) of the respective estimator (1) averaged over the forest plots. This is a zoomed view and some values have been cut off

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