论文部分内容阅读
以重度盐碱土为主体研究对象,对棠梨(Pyrus betu-laefolia Bunge)的抗盐性进行了田间生长直观鉴别和抗性生理评价以及作为行道树的整形进行了探讨。结果表明:棠梨具有很强的抗盐性,能在氯化物-硫酸盐类型土壤全盐含量7g/kg左右的重度盐碱荒地正常生长,该树经大量修剪整形,5a后树干胸径可达3～4cm,树干高2.0m以上的可达60%左右,2.5m以上可达10%左右,无法成型的可嫁接梨树。
The main object of this paper was soil salinization and alkaline earth, and the visualization and physiological evaluation of salt tolerance of Pyrus betu-laefolia Bunge in field were conducted. The plasticity of the tree was discussed. The results showed that: Tang pear has strong salt resistance, and can grow normally in heavy saline-alkali wasteland of about 7g / kg of total salt content in chloride-sulphate type soil. The tree has a large amount of pruning and shaping, 3 ~ 4cm, trunk height above 2.0m up to about 60%, 2.5m up to about 10%, can not be formed grafted pear.