木本能源植物黄连木苗期生物量分配规律与构成因素分析  

Comprehensive Analysis on the Distribution Pattern and Constituent Factors Affecting Seedling Biomass of Woody Energy Plant Pistacia chinensis

作　　者：吴志庄[1] 杨志和 厉月桥[3] 杜旭华[1] 周妍[1] 刘胜辉[1] 

机构地区：[1]国家林业局竹子研究开发中心浙江省竹子高效加工重点实验室,浙江杭州310012 [2]武夷旅游商贸学校,福建南平354200 [3]中国林科院亚热带林业实验中心,江西分宜336600

出　　处：《西北林学院学报》2015年第6期28-32,共5页Journal of Northwest Forestry University

基　　金：国家"十二五"科技支撑计划项目(2011BAD22B08);浙江省竹子高效加工重点实验室课题(2014F10047)

摘　　要：黄连木是我国重要的木本能源植物,通过对黄连木苗期各器官生物量以及各生长性状的调查,探讨黄连木苗期生物量的分配规律和主要影响因素。结果表明,黄连木各器官生物量由小到大依次为根>枝>叶,地上和地下部分生物量差异不大,地上部分生物量略大于地下部分的生物量。各器官生物量与所调查的8个性状都存在着正向相关。通径分析、逐步回归综合分析表明,黄连木苗期生物量的主要构成因素是地径、苗高、冠幅、叶面积等因素。根幅、主根长等其他因子也表现明显正向效应,是黄连木苗期生物量的构成因素。因此,培育黄连木壮苗,只有通过综合各个性状,促进地上和地下部分协调生长来实现。本研究建立了黄连木各器官生物量与生长性状之间的数学模型,可用于南方立地条件下的黄连木苗期生物量的估测。Pistacia chinensis is an important woody energy plant for the production of bio-diesel in China. Through investigating the biomasses of different organs and seedling growth features in seedling stage, the biomass distribution patterns and main influencing factors were analyzed. The results showed that biomasses of different organs of P. chinensis seedlings from high to low were root, branch, and leaf. The total biomass aboveground was slightly higher than the underground, no significant difference. Positive correla- tions were found among all organs and the 8 traits were studied through path analysis and gradual regres- sion comprehensive analysis. Ground diameter, seedling height, crown and leaf area were the dominant w constituent factors for the biomass accumulation in seedling stage. Other factors, such as root range and main root length also had positive influence on the biomass accumulation, indicating they were also the constituent factors. Therefore, only all the factors were well integrated, would the goals of promoting bio- mass accumulation and raising vigorous seedlings be achieved. The mathematical models on the biomass of different organs and the growth traits of P. chinensis were established, which could be used to forecast the total biomass in its seedling stage under the site conditions in southern China.

关 键 词：黄连木 生物量 分配规律 通径分析 构成因素 

分 类 号：S718.43[农业科学—林学]