摘要
[目的]为祁连圆柏的抚育改造和管理提供理论依据。[方法]对祁连山寺大隆林区的祁连圆柏林分进行调查,选择标准木进行树干解析,分析祁连圆柏林分的生长过程。[结果]树高、胸径和材积连年生长量达到峰值的时间分别是80、120和200年。其生长遵循一定规律,自变量树高总生长量与因变量年龄的曲线模型为y=e(2.4598-61.206/x)(R2=0.982),胸径总生长量随年龄变化曲线模型为y=e(3.329 4-124.00/x)(R2=0.946),材积总生长量与年龄的回归方程为y=2.2×10-8x2.770 7(R2=0.994)。[结论]祁连圆柏的生长遵循一定的规律。
[Objective]The theoretical basis of the improvement and management of Sabina was provided through the research.[Method] The stand of Qilian Sabina in the Sidalong Forest Zone in Qilian Mountain was investigated the growth processing of the tree was mastered through the analysis of the standard tree selected.[Results] The time of the peak value of annual growth amount the height,the diameter and the volume was in the 80th,120th and 200th year.The growth the tree followed a certain law and the curve model of total growth amount of the independent variable-tree height and the dependent variable-age was y=e（2.459 8-61.206/x）（R2=0.982）;total diameter and age,y=e（3.329 4-124.00/x）（R2=0.946） and the regression equation of total volume growth amount and age was y=2.2×10-8x2.770 7（R2=0.994）.[Conclusion] There was a certain law in the processing of Qilian sabina.
出处
《安徽农业科学》
CAS
北大核心
2011年第10期5847-5848,共2页
Journal of Anhui Agricultural Sciences
基金
林业公益性行业科研专项(200804006/rhh-07)
林业公益性行业科研专项(200904022-4)共同资助
关键词
祁连圆柏
生长特性
曲线模型
Sabina
Growth characteristics
Curve model
