摘要
应用计盒维数方法比较研究了与太白红杉顶芽动态相关的不同分枝格局对空间占据能力的差异.结果表明,Ⅰ型分枝有利于对所拥有的空间进行有效填充和利用,Ⅱ型分枝有利于扩展枝条所占的面积,Ⅲ型分枝既扩展了面积,又实现了对所拥有空间的有效填充和利用.总的来讲,顶芽的死亡使分枝对空间的占据能力和对光能利用的效率有所提高,同时对植株冠型的调整也有重要作用.太白红杉枝条顶芽的死亡是外界严酷环境条件的被迫“产物”.
Using box-counting dimension method, this paper investigated the spatial occupation ability of different branching patterns related to the fate of Larix chinensis apex buds. The results showed that typeⅠbranching was beneficial to the branches to extend their spatial occupation, typeⅡbranching was beneficial to spread their areas, and type Ⅲ branching was beneficial both to extend their spatial occupation and to spread their areas. As a whole, the death of apex buds could help branches to improve their spatial occupation ability and energy utilization efficiency, and play an important role in adjusting crown type, and hence, in improving its photosynthesis. The death of Larix chinensis apex buds was probably a compelled result of their rigorous living conditions.
出处
《应用生态学报》
CAS
CSCD
北大核心
2005年第1期25-28,共4页
Chinese Journal of Applied Ecology
基金
国家自然科学基金资助项目(30470324).
关键词
顶芽动态
计盒维数
分枝类型
分枝格局
Fate of apex buds, Box-counting dimension, Branching type, Branching pattern.