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Fig. 6 | Annals of Forest Science

Fig. 6

From: On the knowns and unknowns of natural regeneration of silviculturally managed sessile oak (Quercus petraea (Matt.) Liebl.) forests—a literature review

Fig. 6

Average differences in height increment between sessile oak and European beech across varying relative light levels. The first data point series (solid line) depicts modelled height increment values of planted 4- to 6-year-old seedlings growing in a forest stand located close to Göttingen, Lower Saxony, Germany (von Lüpke and Hauskeller-Bullerjahn 2004). The second data point series (dashed line) depicts height increment of circa 1.5 m tall, naturally regenerated seedlings as predicted by height growth models developed from data collected in numerous forest stands of the Belgian Ardennes (Ligot et al. 2013)

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