畜牧业对绿洲沙漠交错带草原沙化模型的定性分析

Qualitative Analysis of the Influence of Livestock Industry on Grassland Desertification Model

考虑畜牧业对沙漠扩散的影响,根据数学物理原理,对前人提出的沙漠扩散预测模型进行了改进,证明该模型在第一象限内无闭轨,研究了模型平衡解的稳定性。通过对模型的定性分析可知:该模型客观、准确、可靠、简便,稳定性较强,能为可持续发展战略的实现提供基础资料和数据。

In this paper, considering the impact of livestock on the desert diffusion, and on the basis of predecessors desert spread prediction model, we improved the prediction model. It is proved that there is no closed orbit and the stability of equilibrium solutions in the first quadrant model. Through the qualitative analysis, the stability of the model is stronger. The results show that the model is ob- jective, accurate, providing the basic information and data for development strategy. This paper has very important scientific significance and use value.