大头典竹地上部分生长指标与生物量关系研究  

A Study of Relationship among Aboveground Factors of Dendrocalamopsis beecheyana var. pubescens (P. F. Li) Keng f

作　　者：申巍 邹跃国 陈森杰 

机构地区：[1]福建省华安县林业局,福建华安363800

出　　处：《世界竹藤通讯》2009年第4期8-11,共4页World Bamboo and Rattan

摘　　要：对大头典竹1a、2a、3a及>3a4个龄级立竹地上部分各器官含水率和生物量调查分析,结果表明:1a生大头典竹竹秆与枝条含水率最高,随着竹龄的增长秆和枝含水率逐渐下降,以秆含水率下降最明显。竹秆生物量占地上部分生物量比例随竹龄增加而降低,枝条生物量占地上部分生物量比例随竹龄增加而升高。各龄级立竹胸径、全高均与地上器官生物量和地上部分总生物量呈显著相关关系。利用相对生长模型回归分析,得出回归方程,通过F检验,均达到显著水平,可用以估算大头典竹生物量。This paper investigated the aboveground biomass and moisture content of 1, 2, 3 and 〉3-year-old D. beecheyana vat：. pubescens （P. ELi） Keng f. The results indicated that： the moisture content of 1-year-old culm and branch were maximal, and decreased with the age increasing. With the age increasing, the proportion of the biomass of culm to the aboveground biomass decreased, but the proportion of biomass of the branches to the aboveground biomass increased. The DBH of culms at every age class and the total height have the significant correlation with aboveground organ biomass and total aboveground biomass. The regression equation was established by employing allometric model, and the F-test showed that the models were significant. So it is concluded that the model can be used to calculate the biomass ofD. beecheyana var .pubescens （P. F. Li） Keng f.

关 键 词：大头典竹 生物量 器官 相对升长模型 

分 类 号：S644.2[农业科学—蔬菜学]