石灰岩地区几种树种抗旱特性的研究  

Drought-relief Characters of Several Species on Limestone Area

作　　者：傅松玲[1] 刘胜清[2] 

机构地区：[1]安徽农业大学森林利用学院,安徽合肥230036 [2]安徽省林业厅,安徽合肥230001

出　　处：《水土保持学报》2001年第5期89-90,94,共3页Journal of Soil and Water Conservation

基　　金：安徽省教育基金资助项目

摘　　要：为保护石灰岩山地植被以及加速石灰岩山地绿化 ,对青檀、朴树、榉树、琅琊榆、醉翁榆等树种生理特性、解剖结构进行分析。结果表明 ,这几种榆科树种水分利用效率高、体内水势值偏低 ,叶样 Ca,Mg,Cu,Zn含量高 ;根系庞大且穿透力强 ,叶肉栅栏组织与海绵组织分化明显 ,细胞间隙大。In order to protect the vegetation and speed up the greening of limestone area, this paper dealt with studies on physiological and anatomical characters of Pteroceltis tatarinowii,Celtis sinensis,Zelkova schnideriana,Ulmus chenmoui and U.gaussenii,and approached their adaptation mechanisms in the environment。The results show that the species of Ulmacea have higher water utilization efficiences,lower water potentials and higher contents of chemical elements such as Ca,Mg,Cu and Zn.The species of Ulmacea have also enormous root systems with strong exploiting capability.The palisade tissues of blade differentiate distinctly and the cellgaps are big.As result of those morphological and anatomical structures,the species of Ulmaceae have great drought resistant ability.

关 键 词：石灰岩山地 榆科树种 抗旱特征 

分 类 号：Q945.17[生物学—植物学]