"Planting conifer and reserving broadleaved tree" is a method for restoring broad-leaved pine forests in Northeast China, specifically focusing on the Korean pine's growth under varying liberation cutting intensities.
The study developed a growth model to analyze how different cutting practices (no cutting, light, medium, heavy, and clear cutting) impact metrics like diameter at breast height (DBH) and tree height.
Findings suggest that increased liberation cutting intensity leads to significant growth enhancements in DBH (up to 933.3%) over 80 years, with optimal prediction accuracy achieved through a double dummy variable model.