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科尔沁沙地4种植物抗旱性的比较研究
引用本文:李雪华,蒋德明,阿拉木萨,范士香,骆永明.科尔沁沙地4种植物抗旱性的比较研究[J].应用生态学报,2002,13(11):1385-1388.
作者姓名:李雪华  蒋德明  阿拉木萨  范士香  骆永明
作者单位:中国科学院沈阳应用生态研究所,沈阳,110016
基金项目:中国科学院沈阳应用生态研究所创新资助项目 (SCXD0 10 2 0 2 ) .
摘    要:对科尔沁沙地小叶锦鸡儿,紫穗槐,差巴嘎蒿和胡枝子4种植物的若干水分生理生态指标进行了测定。结果表明,小叶锦鸡儿具有低水势,高水力和束缚水/自由水比及水分利用效率,抗旱性强;紫穗槐的各项指标与小叶锦鸡儿相反,抗旱性最差;差巴嘎蒿虽然水势较高,但它的持水力高,束缚水/自由水比和水分利用效率都较高,抗旱性也较强,但次于小叶锦鸡儿;胡枝子的水势和持水力较低,束缚水/自由水比及水分利用效率一般,它的抗旱性强于紫穗槐,但比差巴嘎蒿差。

关 键 词:科尔沁沙地  植物  抗旱性  比较研究  小叶锦鸡儿  紫穗槐  差巴嘎蒿  胡枝子
文章编号:1001-9332(2002)11-1385-04

A comparative study on drought-resistance of four plant species in Kerqin sandy land
LI Xuehua,JIANG Deming,ALAMUSA,FAN Shixiang,LUO Yongming.A comparative study on drought-resistance of four plant species in Kerqin sandy land[J].Chinese Journal of Applied Ecology,2002,13(11):1385-1388.
Authors:LI Xuehua  JIANG Deming  ALAMUSA  FAN Shixiang  LUO Yongming
Institution:Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016. lixh1214@sohu.com
Abstract:The water physio ecological index and photosynthetic rate of four plant species, Caragana microphylla, Amorpha fruticosa , Artemish halodendron , and Lespedeza bicolor ,in kerqin sandy land were determined. The results showed that C.microphylla has the lowest leaf water potential and the highest water maintainance, bound water/free water ratio, and water utilization efficiency.Its drought resistance is the strongest. Amorpha fruticosa was contrary to Caragana microphylla ,and its drought resistance was the weakest. Artemish halodendrona had a high leaf water potential, but its water maintainance ,bound water/free water ratio ,and water utilization efficiency were very high.Its drought resistance was stronger. Lespedeza bicolor had a lower leaf water potential and water maintainance, and a usual bound water/free water ratio ,and water utilization efficiency.Its drought resistance was stronger than Amorpha fruticosa 's,but weaker than Artemish halodendron' s.
Keywords:Kerqin sandy land    Caragana microphylla  Amorpha fruticosa  Artemish halodendron  Lespedeza bicolor    Drought  resistance  
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