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Plant Diversity ›› 2009, Vol. 31 ›› Issue (1): 63-66.DOI: 10.3724 SP.J.1143.2009.08157

• 研究论文 • 上一篇    下一篇

两种萝芙木生物量分配与估测模型研究

刘贵周, 蔡传涛, 罗 媛, 刀祥生   

  1. 中国科学院西双版纳热带植物园, 云南昆明 650223
  • 收稿日期:2008-08-08 出版日期:2009-02-25 发布日期:2009-02-25
  • 通讯作者: 蔡传涛

Biomass Allocation and Biomass Estimation Models of Rauvolfia vomitoria and Rauvolfia verticillata (Apocynaceae)

LIU Gui-Zhou, CAI Chuan-Tao, LUO Yuan , DAO Xiang-Sheng   

  1. Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences , Kunming 650223 , China
  • Received:2008-08-08 Online:2009-02-25 Published:2009-02-25
  • Contact: CAI Chuan-Tao

摘要: 采用样本全收获法测量催吐萝芙木(Rauvolfia vomitoria) 和萝芙木(Rauvolfia verticillata) 的生物量, 比较它们的生长特性及生物量分配, 同时以基径( d) 和株高( h) 的组合d2 h 为变量与各器官以及单株总生物量进行估测模型的建立。结果表明, 两个种生物量间差异非常大, 前者明显高于后者。在各自生物量构成中, 茎所占的比例最高, 为60%左右; 而主要药用部位根只占27%左右。所建立的模型中除萝芙木叶以外, 其余的判定系数R2 都较高, 模型具有一定的适用性, 所建立的估测模型可应用于这两个萝芙木种的幼龄植株生物量估测。

关键词: 萝芙木, 生物量, 估测模型, 西双版纳

Abstract: A field experiment was conducted to research biomass allocation and estimation models of Rauvolfia vomitoria and Rauvolfia verticillata , in Xishuangbanna, Yunnan Province . Biomass measurement was conducted with harvest method, and estimation models were set up by following equations: linear , logarithmic, binomial, and power models . The results
showed that the biomass between these two species is obvious, R. vomitoria is higher than R. verticillata , and stems have the highest proportion to the whole plant , roots come next, and leaves lowest . The estimation coefficients (R2 ) were high and the models had certain applicability.

Key words: A field experiment was conducted to research biomass allocation and estimation models of Rauvolfia vomitoria and Rauvolfia verticillata

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