Abstract:

For different silvicultural measures, the radial growth properties of Pinus koraiensis plantations were measured and analyzed. The results showed that the variances of growth percentage, growth-ring width(except pruning), growth ring density(except slope aspect and pruning) were remarkable, and the variance of latewood percentage(except pruning) was not significant. In order to increase growth percentage and cultivate the large diameter wood ,the stands on north slope or at the bottom of slope, and with acluster of three trees, density of 2 0?m×2 0?m, properly thinning and pruning could be selected.

Key words: Pinus koraisensis, Plantation, Silvicultural measures, Radial growth property