天然阔叶林标准收获表的研究

利用福建省森林资源连续清查所布设的郁闭度0.7以上、生长正常的天然阔叶林固定样地,选择理查德方程分别立地类型建立林分平均胸径、平均高、断面积生长模型,以理查德方程中的最大生长速率参数作为确定标准林分的依据,结合形高模型编制了天然阔叶林标准收获表.同时探讨了应用标准收获表配合未来林分疏密度预估模型,对天然阔叶林小班蓄积量进行动态更新的方法.

Study on the normal yield table of natural broad-leaved forests

Based on the data of normal growing natural broad-leaved forests permanent plot whose coverage>0.7 established in the continuous forest inventory of Fujian Province,the grow-up model of forest average DBH(diameter at breast height),average height and basal area were fit by Richards equation.Depended on the maximum grow-up rate parameter in the Richards equation,the normal yield table of natural broad-leaved forests was made up by combining the form height model.The normal yield table and the prediction model of forest closeness were applied to the dynamic renewal of stand stocking of natural broad-leaved forests.