| 摘要: |
| 研究了云杉人工林主要材性指标与林龄，海拔梯度及林木等级间的关系，比较了人工林与60～180年天然林主要材性指标的差异，结果表明，15，20和30年人工林主要材性指标差异不显著，不同林分密度人工林纤维长度比差异显著，不同海拔梯度人工林及不同林木等级间基本密度差异显著，人工中幼林与天然林主要材性指标差异不明显，均是优良纸浆原料，初步认为云杉纸浆材培育周期为25年。 |
| 关键词: 云杉 人工林 材性 变异规律 |
| DOI： |
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| 基金项目:国家“九五”林业重点科技攻关项目(96-011-01-06)部分研究内容 |
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| A preliminary study on variation pattern of wood nature for Picea asperata plantation Sichuan Picea asperata Pulpwood Cooperation Group |
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| Abstract: |
| Plantations of Picea asperata mast have been studied on their main wood features in relationship with ages,elevation gradients and tree classes,differences in main wood natures between plantations and 60-100 year natural stands have been compared in this paper.The results showed that there were no evident differences in wood natures among 15,20 and 30 year plantations.There were significant differences in ratios of fibre length to width of plantations,with different densities,as well as in basic densities of different elevation gradient and of tree classes.Main wood features of plantations were similar to that of 60-100 year natural stands,so plantations are equally excellent pulpwood material.Rotation of picea asperata for pulpwood was tentatively determined as 25 year. |
| Key words: Picea asperata plantation wood feature variation pattern |
