The Bioma ss Structure and the Pa ttern of Subterranean Stem Growth ofCh im onobam busa angustifolia f. reple tea Clone Popula tion

GAN Xiao-hong; CHEN Qi-gui; WANG Hai; WEN Zhong-bin

According to the theory of component framework and the methods of population ecology, the biomassstructure and the pattern of subterranean stem growth of Ch im onobam busa angustifolia f. repletea clone populationwas studied systematically. The results were as follows: ( 1 ) The biomass allocations ratios among culm, leaf,branch, bamboo stump, subterranean stem, root were 36. 30%, 21. 13%, 17. 82%, 13. 43%, 10. 18% and1. 14% respectively. Thereinto, the biomass of aboveground parts accounted for 75. 25% mostly focused on theramets from 1 to 3 a. The biomass allocations of aboveground parts varied with age. The water content of culms,branches and leaves of C. angustifolia f. repleta would decrease with aging. (2) The components of subterraneanstem of C. angustifolia f. repleta were smaller, and itwas difficult for the buds on culm base and bamboo stump totranslate into strong buds, and the subterranean stemsmainly distributed in the shallow soil of 15 cm dep th, whichwas unfavorable to its clone growth resulting in the sparsity of species.

1. School of Life Science, ChinaWest Normal University, Nanchong　637009, Sichuan, China

2. Bamboo Research Institute, Academe of Forestry Science of Chongqing, Liangp ing　405200, Chongqing, China

Received Date: 2008-12-10

Abstract: According to the theory of component framework and the methods of population ecology, the biomassstructure and the pattern of subterranean stem growth of Ch im onobam busa angustifolia f. repletea clone populationwas studied systematically. The results were as follows: ( 1 ) The biomass allocations ratios among culm, leaf,branch, bamboo stump, subterranean stem, root were 36. 30%, 21. 13%, 17. 82%, 13. 43%, 10. 18% and1. 14% respectively. Thereinto, the biomass of aboveground parts accounted for 75. 25% mostly focused on theramets from 1 to 3 a. The biomass allocations of aboveground parts varied with age. The water content of culms,branches and leaves of C. angustifolia f. repleta would decrease with aging. (2) The components of subterraneanstem of C. angustifolia f. repleta were smaller, and itwas difficult for the buds on culm base and bamboo stump totranslate into strong buds, and the subterranean stemsmainly distributed in the shallow soil of 15 cm dep th, whichwas unfavorable to its clone growth resulting in the sparsity of species.

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Reference (10)

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The Bioma ss Structure and the Pa ttern of Subterranean Stem Growth ofCh im onobam busa angustifolia f. reple tea Clone Popula tion

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