攀枝花干热河谷14个树种的耐旱性研究

A studyon drought tolerance of 14 plant species in the xerothermic river valley of panzhihua

摘要: 以14个树种的8个耐旱生理指标为变量,应用主分量分析方法,进行了耐旱性的综合评价。结果表明,14个树种耐旱性能的大小分别为:台湾相思 >大叶相思 >银合欢 >攀枝花苏铁 >顶果木 >小桐子 >云南石梓 >象牙 >三年 >三毛豆 >大叶桉 >非洲桃花心木 >蓝桉 >攀枝花

Abstract: By studying 8 physiological indexes of 14 plant species and making the prin-cipal component analysis, the authors estimated and ordinated the drought tolerance ofthe species comprehensively.The resuIts indicated the drought tolerance was as follows:A. confusa > A. auricuraeformif > L. leucocephala > C. ponzhihuaensis > A. fraxinifolius > J. curcas > G. arborea > Mangifera indica > T. candida > E. robusta > E. globulus > K. senegalensis > B. malabarica.