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金发草枝构件格局及其环境变异
引用本文:陈红,李绍才,彭丽,王海洋.金发草枝构件格局及其环境变异[J].广西植物,2005,25(1):18-21,57.
作者姓名:陈红  李绍才  彭丽  王海洋
作者单位:1. 西南农业大学园艺园林学院,重庆,400716
2. 四川省励自生态技术有限公司,四川成都,610000
基金项目:国家科技攻关课题“岩石创面生态护坡技术开发”(2002BA901A40),“西部荒坡荒地植被快速恢复技术开发及示范”(2003BA901A30),四川省励自生态技术有限公司金发草研究项目
摘    要:研究分析了岩生植物金发草的枝构件特征,结果表明:金发草的分枝角度一般在 30°以内,节间距小于6 cm,平均每节有1个分枝,分枝率约为3;随植物生长级别加大,金发草枝构件空间分形维数逐步从1.282递增到1.664;在林下、陡坡、荒坡的生境条件下,植物枝构件构型特征有明显区别,在林下趋于“游击型”,在荒坡和陡坡上趋于“聚集型”。

关 键 词:金发草  枝构件  格局  分形  适应策略
文章编号:1000-3142(2005)01-0018-04

The research of the patterns on branch module and its differentiation from vary substrates for Pogonatherum paniceum
CHEN Hong,LI Shao-cai,PENG Li,WANG Hai-yang.The research of the patterns on branch module and its differentiation from vary substrates for Pogonatherum paniceum[J].Guihaia,2005,25(1):18-21,57.
Authors:CHEN Hong  LI Shao-cai  PENG Li  WANG Hai-yang
Institution:CHEN Hong~1,LI Shao-cai~2,PENG Li~1,WANG Hai-yang~1
Abstract:By the investigation of the branch system of A clonal perennial plant Pogonatherum paniceum,the pattern characteristics of branch module was described and its differentiation was calculated. The results indicate that:(1)The branching angle of most of stems are less than 30°,internode length less than 6 cm,and there are one main branch and six secondary branches per node for most of stems;(2)The fractal dimensions of different branching modular vary from 1.282 to 1.664 with plant growth;(3)The patterns of branch module are different obviously under different habitat conditions.
Keywords:Pogonatherum paniceum  branch module  pattern  fractal  adaptive strategy
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