四种阔叶树叶片解剖结构特征及其耐旱性比较研究

以泰山学院4种常见阔叶树五角枫、皂荚、黄栌、木槿等为研究对象,对各种类叶片的主要解剖构造特征进行观察和测定,并综合分析它们在控制水分上的能力.结果表明,不同树种控制水分的主要解剖特征各异;应用模糊数学分析,选择角质层厚度、栅/海比值、上、下表皮厚度、气孔的长度等5个指标进行综合评价,4种阔叶树叶片解剖构造在耐旱性上的能力大小排序为：五角枫〉木槿〉皂荚〉黄栌.

Comparison on Leaf Anatomical Structures and Drought Resistance of Four Broad-leaved Plant Species

Acer elegantulum,Gleditsia sinensis,Jasminum nudiflorum and Hibiscus syriacus were selected in Taishan University to compare the main leaf anatomical structure characters and analyze their ability in water loss controlling.The results showed that the main leaf anatomical structure characters in controlling water loss were different.By using fuzzy cluster analysis,the ability in controlling water loss of the six species in the thickness of cuticle,the thickness of upper and lower epidermis,ratio of palisade tissue to sponge tissue,and length of stoma were selected to comprehensively evaluate.The order of their drought resistance ability is：A.elegantulum H.syriacus P.davi diana G.sinensis C.orbiculatus J.nudiflorum.