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Forest Ecosystems
Fig. 3 | Forest Ecosystems

Fig. 3

From: Development and evaluation of an individual tree growth and yield model for the mixed species forest of the Adirondacks Region of New York, USA

Fig. 3

Prediction bias (observed – predicted) for stem density (# ha–1), quadratic mean diameter (cm), and total basal area (m2∙ha–1) over observed values (left) and years in projection (right) using the different methods for simulating individual tree mortality. The expansion factor method is where the predicted probability of survival is multiplied by the tree’s current expansion factor, while the optimal cutpoint method is where an entire tree record is killed when the predicted probability of survival falls below the species optimal cutpoint

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