中文摘要：

在塔克拉玛干沙漠南缘策勒绿洲，对人工控制地下水埋深条件下的骆驼刺幼苗地上和地下部分的生长特性进行了一个生长季的调查。结果表明：1）幼苗的株高、分枝数、冠幅与不同地下水埋深之间存在较好的相关性，不同地下水埋深下幼苗叶片数的波动较大；2）生长在距地下水埋深为2．5和2．0m及1．5和1．0m条件下的骆驼刺幼苗的基径变化没有显著差异（P〉0．05）；3）地下水埋深对骆驼刺幼苗根系的垂直根长的影响显著（P〈0．01）；4）不同土壤深度的根生物量、根质量密度、比根长、根表面积对地下水埋深变化的响应也有显著差异（P〈0．05）。

英文摘要：

A one-growth-season investigation on the growth characteristics of Shap. seedlings Alhagi sparsifolia under controlled groundwater tables was conducted in the Qira oasis in southern margin of Taklamakan Desert. The results indicated that 1 ） the plant height, branch number, and canopy breadth of the seedlings had good correlations with groundwater table, while leaf number had a larger fluctuation under different groundwater tables; 2） there was no significant difference in the basal stem under groundwater table of 2. 5, 2.0, 1.5, and 1.0 m （ P 〉 0. 05 ） ; 3 ） the vertical length of root was significantly affected by groundwater table （P 〈0. 01 ） ; and 4） the root biomass, specific root length, and root surface area at different soil depths differed significantly under different groundwater tables （P 〈 0. 05 ）.