史密斯桉种源试验结果表明 :树高、胸径、材积种源间变异相对较小 ,而种源内个体间的变异较为丰富 .史密斯桉生长量比直干桉和蓝桉更大 .树高种源间、地点间、地点和种源间交互作用都达到显著水平 ,进行种源、地点选择是有效的 .在史密斯桉的推广中种源和地点间交互作用值得注意 .史密斯桉树高、胸径、材积 3个性状受一定的遗传控制 . The results of Eucalyptus mongolica provenance test showed that the variation of tree height, DBH and seed volume was relatively small, while the variation among individuals within the provenance was more abundant than that of Eucalyptus globulus. Interactions among sites, sites and provenances have reached significant levels, and provenance and site selection are effective. It is noteworthy that the interaction between provenances and sites in the promotion of Smith’s eucalyptus is significant. Smith’s Eucalyptus height, DBH, Three traits were controlled by some genetics.