摘要
研究表明:6.5年生肉桂不同造林密度间的保存率和树高差异显著,而胸径没有差异;不同密度处理间各器官的单株生物量和林分生物量也差别较大,说明造林密度对肉桂产量的影响极其重要。根据试验结果,提出如下适宜的造林密度:如以收获枝叶提炼桂油和桂通为主要经营目标,主伐年龄5~6年且不间伐的桂子林,适宜的造林密度为6000~7500株·hm-2;如以兼收型为培育目标,主伐年龄8~10年的,则适宜的初植密度为4500~5200株·hm-2,且应根据林分长势、林木分化程度等因素,适时进行适量的间伐,以期培育优质丰产的肉桂林。
Studies show that the diversity of forest preservative-frequency and tree height is remarkable, but the tree diameter is unremarkable between different planting densities of Cinnamamun cassia in 6.5 tree year old. Meanwhile, distinction of each organic biomass and population biomass between different planting densities indicates important influence of planting density on yield of Cinnamamun cassia. Two planting densities are tested for different purposes.
基金
福建省重点科技攻关资助项目(闽99-Z-138)