肉桂人工林生物量回归模型应用研究  

Application Study on Biomass Regression Model of Cinnamamun cassia Plantation

作　　者：梁晓静[1] 梁文汇[1] 黄开顺[1] 李开祥[1] 武建云[1] Liang Xiaojing;Liang Wenhui;Huang Kaishun;Li Kaixiang;Wu Jianyun(Guangxi Forestry Research Institute/Engineering and Technology Research Center for Anise and Cinnamon of State Forestry Administration/Guangxi Key Laboratory for Cultivation and Utilization of Special Non-Timber Forest Crops/Guangxi Engineering and Technology Research Center for Woody Spices,Nanning 530002)

机构地区：[1]广西林业科学研究院/国家林业局八角肉桂工程技术研究中心/广西特色经济林培育与利用重点实验室/广西木本香料工程技术研究中心

出　　处：《中国农学通报》2019年第35期40-44,共5页Chinese Agricultural Science Bulletin

基　　金：广西林业科技项目“施肥对肉桂品质的影响研究”（桂林科研[2015]42号）;特聘专家岗位专项经费“广西特色经济林开花生理研究”

摘　　要：为迅速而准确地预测肉桂林分的生物量,以广西防城不同密度肉桂人工林为研究对象,基于线性和非线性关系拟合肉桂树干、树皮、树叶和树枝生物量模型,并估算和比较分析不同密度肉桂人工林地上各器官生物量和林分径阶生物量。结果表明,建立的肉桂各器官生物量最优模型相关系数均达到了0.93以上。应用模型估算4个不同密度的肉桂人工林各器官生物量均表现为树干>树枝>树皮>树叶,地上总生物量的变化趋势为密度Ⅱ>CK>密度Ⅰ>密度Ⅲ,肉桂人工林中大径材生物量蓄积的最佳密度是2400株/hm^2(密度Ⅱ)。To predict biomass of forest stand quickly and accurately, Cinnamamun cassia of Fangcheng was studied to establish the biomass model of trunks, barks, leaves and branches based on linear and nonlinear relations, and the effects of different densities of Cinnamamun cassia plantation on biomass of each organ and diameter classes was analyzed. The results showed that, the correlation coefficient of the optimal model of each organ had reached over 0.93, the optimal model was applied to estimating the biomass of each organ under the4 densities, and the results were same as: trunk> branch> bark> leaves. The total biomass of the above ground showed that: density II> CK> densityⅠ> density Ⅲ, and density II(2400 plants/hm^2) was the best density of the biomass of big-diameter timber in the Cinnamamun cassia plantation.

关 键 词：肉桂人工林 生物量 模型 密度 

分 类 号：S725.6[农业科学—林木遗传育种]