高山禾草——嵩草型草地生长模型初探

Preliminary Studies on Growth Model of Grass—Kobresia Sward on Alpine Grassland

本文模糊数学对草地结构子系统和气候生态子系统作了探讨研究,提出了适宜度的概念。在适宜度的基础上,提出了能反映各子系统对牧草生长有着综合效应的特征指数。经统计分析建立了牧草产量动态或牧草生长速度与这些特征指数的数学模型。通过这两个子系统的模型及其综合模型,可以模拟牧草的生长动态和产量动态。

In this paper, the grassland structure subsystems and the climatic ecology subsystems were studied with fuzzy mathematics, and the concept of the suitable degree was constructed. Then, based on the suitable degree, the characteristical indexes reflecting the combined effects of each subsystem on herbage growth were proposed. Mathematical modeles for the relationship between herbage yield or growth rate and the characteristical indexes were established statistically. From the subsystems models and the comprehensive modeles, the dynamics of herbage yield and growth can be simulated.