摘要
[目的]为构建尾叶桉和巨尾桉叶面积优化测算模型。[方法]以尾叶桉和巨尾桉为研究对象,对其叶面积与几个叶形特征值的相关性进行了研究。[结果]2个树种的叶形特征值存在一定差异,各自的叶面积与叶长、叶宽、叶周长、叶长×叶宽、叶的长宽比、形状因子等均存在显著性相关,可以与叶面积构建回归模型。其中,利用尾叶桉和巨尾桉的叶长×叶宽值构建的2个叶面积测算模型效果最好,具有较高的精度和实际应用价值。[结论]该研究为这2个树种的研究提供了一种简便有效的叶面积测算方法。
[ Objective ] The aim was to build an optimal leaf area measurement model of E. urophylla and E. grandis x E. urophyUa. [ Method] The correlation between leaf area and leaf＇ s eigenvalue of E. urophyUa and E. grandis x E. urophylla were studied. [ Result] There was certain difference in leaf characteristics values between the 2 species. The leaf areas of E. urophylla and E. grandis x E. urophylla both had significant correlation with leaf length, leaf width, leaf perimeter, leaf length x leaf width, the ratio of leaf length to leaf width, shape factor, etc. , so the factors could be constructed into a regression model with leaf area. Among them, the best 2 models for leaf area calculation which were built by leaf length x leaf width of E. urophyUa and E. grandis x E. urophylla both had relatively high accuracy and practical applications. [ Conclusion] The research provides a simple and effective leaf area measurement method for studies on the 2 tree species.
出处
《安徽农业科学》
CAS
北大核心
2010年第31期17568-17570,17584,共4页
Journal of Anhui Agricultural Sciences
基金
"十一五"广西重大林业科技项目(桂林科字[2009]第8号)
关键词
尾叶桉
巨尾桉
叶形特征值
叶面积
测算模型
E. urophylla
E. grandis x E. urophylla
Leaf＇ s eigenvalue
Leaf area
Calculation model
