Simulating Management of Industry Plantation of Larix olgensis

Based on simulating management of diffident site grade and density of Larix olgensis wood stands,some conclusions was made:wood diameter has notable relativity with site grade but has no relativity with original plant density,low density measure cannot add wood diameter;the gross of thinning and main cutting add with increasing of orignal plant density,but breadth of increasing is not notable; if thinking of cost price of investment time ,Larix onlgensis wood stands should be cut in 60 year.