Individual Biomass Recession Model of Pinus tabulae formis of Helan Mountains
Individual Biomass Recession Model of Pinus tabulae formis of Helan Mountains
复制标题
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Liu Bin;L. Jianjun;Ren Jun-hui;DU Cheng-xing
中科院分区：
文献类型：
--
作者：
Liu Bin;L. Jianjun;Ren Jun-hui;DU Cheng-xing
利用12个样地的森林清查资料和平均乔木生物量，分析了单株树高、胸径与不同部位的相关性。并通过衰退分析方法，建立了宁夏贺兰山油松单株生物量幂指数模型。结果表明：贺兰山油桐各部位生物量分布比例依次为树干-树枝-根-树皮。在分别以树高H、胸径D、1/2总高径D_（1/2）和D~ 2h为自变量的模型中，树干、树枝和根系生物量衰退模型拟合良好；叶片和树皮生物量衰退模型的拟合效果不如其他模型。任何通过每个自变量和单个生物量拟合的预测方程都能较好地应用。
Based on the forest inventory data and the biomass of average tree sampled in 12 plots,the correlation between the height,DBH and different parts of an individual tree were analyzed.And through the method of recession analysis,the power index model of individual biomass of Pinus tabulae formis in Mt. Helan,Ningxia Province was established.The results demonstrated that the biomass distribution ratio of each part of P.tabulae formis in Mt.Helan was in the order of trunkbranchrootbarkleaf.In the models in which the independent variable is the tree height(H),diameter at breast height(D),diameter at 1/2 total height(D_(1/2)) and D~2 H respectively,trunk,branch and root biomass recession models were well fitted;leaf and bark biomass recession models were fitted not as well as the other models.Any prediction equation fitted through each independent variable and individual biomass can be better in application.