<正>经过对新疆昌吉试验区的 2 8种榆属树木抗寒性、抗旱性、生态学特性系统的调查 ,并参考有关文献 ,利用树木抗逆性指标、形态指标、生长指标 ,构建了榆属资源多级递阶结构模型 ,结合旱生榆属树木特点 ,提出了 8种适合北疆平原园林绿化最佳榆属树木。

Based on a systematic investigation of hardiness, drought, tolerance, ecological characteristics of 28 species of elm in Changji of Xingjiang Province, a model of multileveled structures for the resources of the genus of elm has been constructed,with the help of references and indexes for stress resistance ,morphology and growth. 8 species of elm suitable to be planted as garden trees in plains of the northern part of Xingjiang have been suggested in terms of characteristics of drought tolerant trees involved in the genus of elm.