摘要
对重庆市梁平县16块寿竹样地进行了抽样调查,分析了寿竹的材积与胸径的相关性,探讨了寿竹材积的垂直分布格局和海拔效应。结果表明,寿竹的材积和胸径相关性极显著,其最优模型为V=-0.031+0.007D–0.00002D3;寿竹材积的垂直分布格局表现为随高度的增加而逐渐减小的趋势,其相对累积材积和相对高度的最佳回归模型为V′累=0.022+1.667H′-0.689H′2;海拔高度对寿竹材积的积累有一定的影响,其中900m以上海拔水平不利于寿竹材积的积累。
Through surveying the 16 sample spots of bamboo forest in Liangping,the study analyzed the relationship of characteristic of timber volume and DBH of Phyllostachys bambusoides f. shouzhu Yi culm,and the discussed the vertical patterns of timber volume of the effect of altitude on volume. The results showed that the volume and DBH of Ph. bambusoides were most significantly correlated,and the optimum model was V=-0.031＋0.007D-0.00002D3. The timber volume vertically decreases with the increase of height,and the optimmum model of relative cumulated volume to relative height was V＇累=0.022＋ 1.667H＇-0.689H＇2. There was a certain effect of altitude on the accumulation of timber volume,and the altitude above 900 m does not favor the accumulation of timber volume of the bamboo.
出处
《世界竹藤通讯》
2010年第6期4-7,共4页
World Bamboo and Rattan
基金
国家"十一五"科技支撑课题(2006BAD19B02)
四川省教育厅青年基金项目(2006B038)
关键词
寿竹
材积
胸径
垂直格局
海拔
Phyllostachys bambusoides f. shouzhu Yi
volume of timber
diameter
vertical pattern
altitude
