The result of investigation indicated that Pinusponderosa has been introduced successfully with a promising features alien conifer. Its introduction could be extended in large.
调查结果表明，美国黄松已在黄土高原引种成功，是一种很有前途的国外针叶树，可以扩大引种，繁殖推广。
2
On the basis of recounting details of Pinusponderosa in the world and domestic, its prominent characteristics of growth in Yanan arboretum on the loess plateau has been emphasized on the paper.