额尔齐斯河欧洲黑杨叶片特征的研究

Leaf Characters of Populus nigra in Eerqisi River

在新疆阿勒泰选取我国唯一欧洲黑杨天然分布区内6株天然欧洲黑杨优树,分别测量叶片长、叶片宽和叶柄长,通过统计分析,对比了不同优树间的叶片特征值及其比值,结果表明:优树P4树高为42.7 m、枝下高13.9 m、胸径为104.7 cm,叶片长、叶片宽和叶柄长都显著高于其他优树,叶片长、叶片宽和叶柄长之间的相关性最强,叶片长/叶片宽最低且显著低于其他优树,且最接近于1。

Six natural Populus nigra plus trees were selected in Altay, Xinjiang where the only natural distribution area of Populus nigra was located. The leaf length, leaf width and petiole length were measured. The ratio of leaf characteristic values between different excellent trees was compared by statistical analysis. The results showed that the height of P4 tree was 42.7 m, the height of the branch was 13.9 m, the DBH was 104.7 cm. The leaf length, leaf width and petiole length were significantly higher than other excellent trees. The correlation among leaf length, leaf width and petiole length was the strongest. The blade length/blade width which was the lowest and significantly lower than other superior trees was closely near to 1.