Abstract: In order to spread Sassafras in southern Henan effecti ve ly,the Sassafras's adaptabilities to different places were studied,and the e ffects o f growing sites on growing condition of the introduced tree were investigated.Th e results showed that the windward had significant effect on Sassafras's gro wth. It was found that some soil facters,such as soilthickness,sodthickness,soil qual ity,and stony amount,also had significant effects on its growth.However,the alti tude,the aspect of slope and the position o...