农学学报2012，Vol.2Issue(9)：28-31,50,5.
沿海防护林树种木麻黄植冠的枝系特征分析
Architectural Analysis of Crown Geometry in Casuarina equisetifolia L. as Shelterbelt Species
摘要
Abstract
In order to understand the adaptive response of C. equisetifolia L. to environmental stress and its adaptive strategy in different growth and developmental phases, architectural characteristics of C. equisetifolia L. were analyzed to provide theoretical guidance for coastal protection forest construction of China. In Dahe state-owned forest farm, Fujian Province, the branching patterns of C. equisetifolia L. in different growth and developmental phases were examined. The results showed that overall bifurcation ratio and stepwise bifurcation (SBR1:2) didn' t vary significantly among different phases, but the stepwise bifurcation (SBR2:3) in sapling phase was significantly lower than that in the mature phase (P〈0.05). The first order branch angle to horizon and the second order branch angle to horizon in seedling stage were significantly different with the mature and the sapling stages. In different development stages, the architectural comparison showed that: in mature tree stage, forced by the wind, tree' s growth slowed down and the branching of C. equisetifolia L. grew downward relative to the horizontal plane. In seedling stage, tree' s heigtlt grew rapidly to obtain enough sunlight for photosynthesis, so the first order branch angle to horizon and the second order branch angle to horizon of it performed the trend of upward relative to the horizontal plane. In sapling stage, the branching of C. equisetifolia. L also performed the trend of downward relative to the horizontal plane. The length and width of branehlet showed no obvious regularity in seedling, sapling and mature stages. The interval of hranchlet performed the trend of decreasing gradually from seedling, sapling to mature stages.关键词
木麻黄/植冠/构型分析Key words
C. equisetifolia L./Crown Geometry/Architectural Analysis分类
农业科技引用本文复制引用
刘奕,俞伟,吴承祯,洪伟,陈灿,李键,林勇明..沿海防护林树种木麻黄植冠的枝系特征分析[J].农学学报,2012,2(9):28-31,50,5.基金项目
教育部博士点学科专项基金资助项目“风力胁迫下沿海防护林主要树种的构件响应特征” （）
福建农林大学科研青年基金资助项目“风力胁迫下沿海物种台湾相思的构件响应特征”（2009006）. （）
