【作者】 刘学全； 周席华； 胡兴宜； 蔡晟； 陈义群；

【Author】 Liu Xuequan Zhou Xihua Hu Xingyi Chai Sheng Cheng Yichun Academy of forest science of Hubei province WUHAN 430079

【机构】 湖北省林科院；

【摘要】 通过盆栽苗木水胁迫试验,对鄂西北地区主要造林树种耐旱生理特性进行了对比研究,着重分析了在水分胁迫条件下,湿地松、杉木、刺槐、侧柏、沙棘(引种)、柠条(引种)等树种的形态指标、水分生理指标、生理代谢指标的变化特征,并以此为依据,对以上苗木耐旱特性进行了综合评价。结果表明6个供试苗木都具有较强抗旱性能, 而其中柠条、侧柏抗旱能力比湿地松、杉木、刺槐,沙棘要强。更多还原

【Abstract】 Based on the experiment of water stress of trees in pots,the drought tolerance characteristics of the main tree species for afforesting in northwest Hubei province was studied.The index variation character of shape,water relations and physiological metabolism of Pinus elliottii,Couninghamia LanceoLata,Robinia Pseuidoacacia,Platycladus Orientalis, Hippophae Rhamnoides (introduction),And Caragana korshinskii (introduction) under water stress were emphatically analyzed;based on that,the drought tolerance characteristic of potted trees was synthetically evaluated.The results showed that six seedling trees for testing had stronger ability of fighting the drought.The ability of fighting the drought of Caragana korshinskii and Platycladus Orientalis were stronger than that of Pinus elliottii, Couninghamia LanceoLata and Robinia Pseuidoacacia.更多还原