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This study aims to assess the effects of different thinning intensities on the growth of dominant Scots pine trees.

Assessment of the effects of thinnings in scots pine plantations in Mongolia: a comparative analysis of tree growth and crown development based on dominant trees

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This study aims to assess the effects of different thinning intensities on the growth of dominant Scots pine trees.
Field measurements conducted from 2016 to 2020 on a Scots pine plantation in Mongolia.
Experimental thinnings with varying intensities: very low, low, medium, high, and an unthinned control.
Linear mixed effect models were utilized to analyze diameter, height, volume, and crown diameter growth.
Thinning significantly improved diameter and volume growth of dominant trees (p < 0.0001).
Higher thinning intensity predominantly enhanced basal area and volume growth, while slight height benefits were observed only in very low and low treatments.
Recommendations for medium- (30%) and high-intensity (45%) thinnings were supported by comparative growth analyses.

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Randomized trial assesses thinning impacts on tree growth in Scots pine plantations, suggesting optimal thinning intensities.

Ganbaatar et al. (2021) studied this question.

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