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Figure 3
Volume increment of Quercus pyrenaica according to equation (19): (a) varying the stocking degree (S) and dominant height (Hdom) for a species proportion by area (P) of 0.5; (b) varying P and Hdom for S = 0.5; when P < 1, IV is the volume increment of the species related to its occupied area, IVp in Table IV.