In 2007 we have repeated the measurement of trees on two research plots on Pokljuka, which were established in early fifthies of the previous century. We have measured diameters of trees and assessed their development tendency, tree vitality, crown lenght, crown defoliation and damages. On research plots we have also measured the quantity of dead wood. Growing stock on plots is 20 % higher than the average in the same forest management class in the Pokljuka forest management unit. On a research plot number 40 the composition of the stand remains uniform since the first measurement. The composition of the stand on a research plot number 70 has changed from uneven-aged to uniform. Damages on trees are effecting vitality. Damages, defoliation and crown lenght have an influence on the intensity of the diameter increment.