Abstract: The heredity variability of the height, diameter and volume growth, interaction effect between biomass and circumstance, relativity among characters, age and seedling growth of a 4 5 years old forest in 17 geographical provenances and 48 families in Hunan were studied. The results indicated there were obvious differences in the height, diameter and volume growth at mountainous, semi-mountainous and hilly areas. Heritabilities of the height, diameter and volume were 0. 556 1 - 0.903 4, 0.630 3 - 0.914 0, 0.670 1 - 0.914 3 respectively. For the interaction of provenances and environment , the rank of the height, diameter and volume growth was mountainous area > semi-mountainous area > hilly area. Based on the selection standard on the volume growth exceeded (15%) of average provenances, 10 superior provenances and 14 families were tentatively selected with the genetic gain of 16. 09% - 88. 70% , 15. 19% - 184. 80% respectively and could be afforested in different ecological environments.