Thinning experiments were conducted on broad-leaved mixed forest in eastern Liaoning mountain area.Result shows that moderate tending thinning can promote DBH &accumulation of broad-leaved mixed forest of eastern Liaoning mountainous area,and the average DBH & accumulative growth rate of forest increase with the increase of thinning intensity and the average DBH growth rate is the largest in the weakly irrigated area,and the growth rate of the forest is the largest.Result shows that the average DBH &the gro...