摘要
以线性为基础的矩阵模型和非线性模型,一直都被相互独立地用来模拟林分的生长动态。本文在矩阵模型的基础上,提出了异龄林的三单元非线性生长模型,并分别以线性矩阵模型和非线性矩阵模型对林分的生长动态进行了预测。结果表明,非线性模型与矩阵模型的联合使用,具有结构严谨和精度高的优点,不失为一种预测林分生长动态的有效方法。文中所用材料来自长白山林区的红松(Pinus koraiensis)针阔混交林。
Nonlinear growth models and the matrix growth models based on a linear growth function are always used independently in simulating the growth dynamic of stands. Based on Buongiorno and Michie's matrix model, a set of nonlinear growth models of uneven-aged stands with three units are established in this paper. The development of the uneven-aged stands is predicted by using both linear and nonlinear growth models. The results show that the combined use of nonlinear growth model and matrix model has the advantages of being well-knit and highly precise, so that it is an effective method for predicting the growth dynemic of stands. The data used here orginated from the Korean pine mixed forest in Changbai Mountains.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1991年第3期193-198,共6页
Scientia Silvae Sinicae
基金
高等学校博士学科点专项科研基金资助项目
关键词
异龄林
生长动态
转移矩阵
Uneven-aged stands
Transition matrix
Nonlinear model
Dynamic simulation
Growth prediction
