不同喀斯特生境小蓬竹无性系构件研究  

Study of Drepanostachyun ludianense Clone Module in Different Habitats

作　　者：谢元贵[1] 刘济明[1] 陈洪 蒙朝阳[1] 熊华[1] 欧国腾 蒙建 

机构地区：[1]贵州大学林学院,贵阳550025 [2]贵州省铜仁市林业局,贵州铜仁554300 [3]贵州省罗甸县林业局,贵州罗甸550100

出　　处：《西南大学学报（自然科学版）》2009年第6期46-50,共5页Journal of Southwest University(Natural Science Edition)

基　　金："十一五"国家科技攻关课题资助项目(2006BAC01A09-2)

摘　　要：运用Harper构件理论对不同喀斯特生境下的适生竹种——小蓬竹无性系种群构件研究表明:小蓬竹在孤立木和林缘生境下生活型为近K对策,林中生境下生活型为近R对策;小蓬竹生长情况在孤立木生境好于林缘和林中,但不论何种生境,小蓬竹种群都属于增长型种群;二级枝和三级枝系统及其上叶系统为小蓬竹无性系种群构件的重要组成部分.Based on Harper＇s plant module theory, a study was made of the clone population module of Drepanostachyun ludianense, which is an adaptive bamboo species for different Karst habitats. The life form of D. ludianense was found to be K-strategy when growing as isolated trees or in a forest edge habi- tat, and was R-strategy in the middle of the forest. Compared with a habitat of forest edge and middle, the growth situation of D. ludianense under an isolated tree habitat was better. However, whatever the habi- tat, D. ludianense population belonged to the increasing type; the secondary branch system, the third level branch system and the leaf system above them should be significant components of the D. ludianense clone population module.

关 键 词：小蓬竹 无性系种群 构件 喀斯特 

分 类 号：Q948.1[生物学—植物学]