The grafting and cutting propagation tests of Ulmuspumila cv.
对中华金叶榆进行嫁接和扦插繁殖试验。
2
Ulmuspumila open forest ecosystem plays an important role in Otindag Sandy Land.
榆树疏林生态系统是浑善达克沙地的重要组分之一。
3
The best regression models (e. g. Ulmuspumila) of leaf content against air SO2 and leaf stomatic resistance could explain that the sulfur acted as pollutant entered plant mainly through stoma.