Effect of Thinning on Increment of Crypotomeria fortunei Plantation

In 2015, investigations were implemented on mean DBH, mean tree height, volume and DBH of Crypotomeria fortunei plantations in Jinyun, Zhejiang province. The control was the stand planted in 1983 without any thinning so far, and the other 2 sample plots with treatment of thinning once and twice. The results showed that thinning had significant effect on mean DBH and volume growth. Mean DBH, mean tree height and individual tree volume was ordered by thinning twice > thinning once >control, as well as diameter increment.