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”。
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.
出处
《广西植物》
CAS
CSCD
北大核心
2005年第1期18-21,57,共5页
Guihaia
基金
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
关键词
金发草
枝构件
格局
分形
适应策略
岩生植物
生境
Pogonatherum paniceum
branch module
pattern
fractal
adaptive strategy
