橄榄竹单株地上部分生物量结构分析  

Structure Analysis on Aboveground Biomass of Individual Indosasa gigantean

作　　者：廖鹏辉 郑蓉[2] 林阳峰 连华萍 温晓芸[2] 

机构地区：[1]福建省林业科学技术推广总站,福建福州350003 [2]福建省林业科学研究院,福建福州350012 [3]邵武市林业局,福建邵武354000 [4]三明市林业局,福建三明365000

出　　处：《福建林业科技》2016年第4期76-79,共4页Journal of Fujian Forestry Science and Technology

基　　金：福建省科技厅科研重点项目(2007N0021);福建省林业厅林业科研项目(闽林研[2015]73号);国家林业局南方山地用材林培育重点实验室;福建省森林培育与林产品加工利用重点实验室资助项目

摘　　要：在福建省永安市,采取标准地法对2~5年生橄榄竹的地上生物量进行测定,分析单株及各器官生物量分配情况。结果表明,竹秆、枝、叶的平均含水率分别为45.5%、47.45%、55.65%,并随着竹龄增加呈现逐年下降的趋势;橄榄竹秆生物量自基部向梢部逐渐降低,近基部第1段（竹高1.5 m段）生物量占总秆重比重最大,达26.0%;单株各器官生物量占总量的百分比大小排序为：竹秆〉竹枝〉竹叶;成竹生长在4年生时竹秆生物量达最大值,5年生时竹枝、竹叶的生物量达最大值,可进行竹材的采伐利用。采用线性、乘幂函数对地上部分单株生物量与胸径进行回归拟合,其相关系数均达0.84以上,可用于估算橄榄竹单株生物量。In Yongan City of Fujian Province, the aboveground biomass of 2 ~ 5-year-old Indosasa gigantean were measured, and the biomass distribution of single plant and organ were analyzed. The results showed that the average moisture content of bamboo culm, branches,leaves was respectively 45.5% ,47.45% and 55.65% ,of which was decreased year by year with the increase of bamboo age. The stem biomass of lndosasa gigantean reduced gradually from base to tip. The biomass at the first segment near the base of bamboo （ 1.5 m high） was the maximum accounted for 26 percent of total culm weight. The biomass of per plant organs accounted for the percentage of the total was that ： culm 〉 branches 〉 leaves. The biomass of bamboo culm reached the maximum when bamboo was 4 years old. When the bamboo was 5 years old, the biomass of the bamboo branches and the bamboo leaves reached the maximum, and the bamboo can be harvested and utilized. The above ground biomass and diameter at breast height （DBH） was fit by using line- ar and power function regression fitting, which can be used to estimate the average biomass of Indosasa gigantean when the correla- tion index was higher than 0. 84.

关 键 词：橄榄竹 含水率 生物量 拟合模型 

分 类 号：S795.9[农业科学—林木遗传育种] S718.556[农业科学—林学]