[1]王开,刘建军,康博文,等.8种落叶树种的当年枝变异格局的研究[J].西北林学院学报,2008,23(04):45.
　WANG Kai,LIU Jian jun,KANG Bo wen,et al.Variation Patterns in Current Shoot Structure in Eight Deciduous Tree Species[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(04):45.
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8种落叶树种的当年枝变异格局的研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第23卷
期数:
2008年04期
页码:
45
栏目:
森林生物、生理、生态、植物、气象等
出版日期:
2008-07-30

文章信息/Info

Title:
Variation Patterns in Current Shoot Structure in Eight Deciduous Tree Species
作者:
王开; 刘建军; 康博文; 等
1.西北农林科技大学 资源环境学院; 2.林学院 陕西 杨陵712100
Author(s):
WANG Kai1;  LIU Jianjun2;  KANG Bowen2;  LI Wenhua2
1. College of Resources and Environment, Northwest A&F University; 2. College of Forestry, Yangling, Shaanxi712100, China
关键词:
树体结构; 当年枝变异格局; 叶展系数; 枝长; 当年枝功能
Keywords:
tree architecture;  variation patterns in currentyear shoot structure;  leaf display index;  shoot length;  shoot function
分类号:
S718.42
文献标志码:
A
摘要:
利用非线性回归方程分析了8种落叶树种的当年枝变异格局，发现了两种典型的结构变异模式。在7个树种中（三角枫、元宝枫、七叶树、银杏、紫叶李、日本晚樱和国槐），枝条的功能分化明显，其短枝的主要功能是获取光能，而长枝的主要功能是扩展空间，表现出叶展系数随枝长的增加而呈现出指数型递减，这种递减趋势在银杏和紫叶李中尤其明显；另1种苦楝中，枝条的功能分化不明显甚至缺失，其叶展系数随枝长的增加而表现出线性递增。
Abstract:
Variation patterns in current shoot structure in eight deciduous tree species were studied by nonlinear regression equation. Two patterns were found in the eight tree species in seven species (Acer buergerianum, A. truncatum, Aesculus chinensis, Ginkgo biloba, Prunus cerasifera cv. Atropurpurea, P. lannesiana, and Sophora japonica), leaf display indeces (LDI) decreased exponentially with shoot length (SL), suggesting that short current shoots were favorable to lightcapture over spaceacquisition, and vice versa for long current shoots. The decrease in LDI was much greater and sharper in G. biloba and P. cerasifera cv. Atropurpure. In another species (Melia azedarach), LDI increased linearly and gradually with SL. This suggested that its long current shoots were superior to its short current shoots for both lightcapture and spaceacquisition, and that the structural variation in its current shoots was small.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20070401修回日期：20080527 基金项目： 国家林业科技支撑计划：“生态经济型防护林体系空间配置与结构设计技术研究”（2006BAD03A0205）。作者简介：王开，男，在读硕士，主要从事树木形态学研究。Email：wangkai@nwsuaf.edu.cn *通讯作者：刘建军，男，博士，教授，主要从事森林生态学研究
更新日期/Last Update: 2008-07-30