樟子松沙地人工林直径分布模拟

Simulation of diameter distribution of Pinus sylvestris var. mongolica plantations on sandy soil.

利用反 Weibull函数模拟了章古台沙地樟子松人工林的直径分布规律 .结果表明 ,反 Weibull分布函数模拟樟子松人工林的直径分布效果好 ,具有精度高、适应性强等特点 .分别建立了反 Weibull分布函数 3个参数与林分年龄及密度之间的关系方程以及直径分布与 3个参数的回归方程 ,这些方程可用来预估林分产量。

Through the use of reverse Weibull function, this article simulated the diameter distribution of Pinus sylvestris var. mongolica plantations on Zhanggutai Sandy Land, which shows that for this simulation, reverse Weibull function had the characteristics of high precision and strong adaptation. Correlation equations of three parameters of reverse Weibull function and stand age and density, and regression equation of diameter distribution and these three parameters were established, which could be used to predict the stand yield and timber grade, and to appraise the management effects.