Thinning interval in young Douglas-fir stands

Orazio Ciancio, Vittorio Garfì, Susanna Nocentini

Abstract


Thinning interval is a very important parameter in the management of fast growing stands. Hart-Beckings distance factor (s%) has been proposed to quantify this interval. Variations of s% in relation to individual diameter increment have been examined in experimental thinning plots in young Douglas-fir stands. Results show that for this fast growing species thinning interval should not be more than 6-7 years, Thus individua1 diameter increment is kept sufficiently uniform, with positive effects both from the biological and the economic point of view.


Keywords


Pseudotsuga menziesii; Thinning; Hart-Becking;

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