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|本期目录/Table of Contents|

四季竹生态自适应的立竹秆形结构特征

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2012年02期
页码:
214
栏目:
植物生态学
出版日期:
2012-03-25

文章信息/Info

Title:
The characteristics of culm structure to ecological selfadaptability of Oligostachyum lubricum ramet
作者:
顾大形12 黄玉清2陈双林1*
1.中国林业科学研究院 亚热带林业研究所, 浙江 富阳 311400; 2.广西壮族自治区中国科学院 广西植物研究所, 广西 桂林 541006
Author(s):
GU DaXing12 HUANG YuQing2 CHEN ShuangLin1*
1.Research Institute of Subtropical Forest, Chinese Forestry Academy, Fuyang 311400, China; 2. Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China
关键词:
四季竹 秆形结构因子 生态自适应性
Keywords:
Oligostachyum lubricum culm structure factors ecological autoadaptability
分类号:
Q948.15
DOI:
-
文献标识码:
A
摘要:
植株结构是植物对环境响应的基础,是植物生态自适应的机制之一。为探究四季竹的生态自适应性,对四季竹立竹秆形结构因子进行了调查和分析。结果表明:四季竹立竹胸径与立竹全高、立竹枝下高、立竹胸高壁厚,立竹全高与立竹胸高壁厚、立竹枝下高均呈极显著正相关,立竹节间长与立竹全高呈显著正相关,其它结构因子间相关性不显著。立竹全高、立竹枝下高与立竹胸径间均具有极显著的二次函数关系,分别为TH=-171.849+69.96D-0.194D2和BH=47.306+7.433D-0.115D2,立竹胸高壁厚与立竹胸径呈极显著的线性函数关系,WT=-0.1447+0.2453D。在试验四季竹林中立竹相对全高、相对枝下高和相对胸高壁厚的平均值均比较稳定,分别为30.27、9.36和0.24。立竹秆形结构特征在一定程度上可以解释四季竹的生态自适应性。
Abstract:
Modular structure,the basic of environmental response of plant,is one of the ecological autoadaptive mechanisms of plant. Characteristics and relationship among culm structure factors of ramet were measured and analyzed to reveal ecological autoadaptability of Oligostachyum lubricum. Very significant positive correlation between diameter at breast height(DBH) and stem total height(TH),height under branch(BH),wall thickness at breast height(WT),and between TH and WT,BH were found. There were significant positive correlation between internode length(IL)and TH,while no significant positive correlation among other culm structure factors wes found. The relation between DBH and TH,BH,WT could be described as TH=-171849+69.96D-0.194D2,BH=47.306+7.433D-0.115D2,WT=-0.1447+0.2453D,respectively. Ramet relative TH (RTH)、relative BH (RBH) and relative WT(RWT) were 30.27,9.36 and 0.24 respectively,and were stable in test forest. The characteristics of culm structure could reveal the mechanism of ecological autoadaptability of O.lubricum ramet to some extent.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2012-03-25