Establishment of Stand Growth Tables for the National Chinese Fir Plantations

Making use of the data of 4 465 sample plots of Chinese fir plantation(seedling crop),which were collected all over China during the recent years and taking the site index tames of various Chinese fir belts and areas as the foundation for classification,5 groups of stand growth table of Chinese fir plantation (each of the south belt,north belt,and east,middle and west areas of the middle belt was classified as a group)were established.The precision of each table was high and most of their standard deviations were lower than ±5% with the largest no more than ±7.8%. In addition,the managerial suggestions and thinning and harvest cutting age were put forward based on the growth tables of various Chinese fir belts and areas.