沙漠化影响因素研究

近年来，沙漠化问题日益受到关注，虽然有关沙尘运动和沙纹形成方面的研究较多，也取得了显著的成果，但是有关沙漠扩散过程定量描述的研究相对较少。特别是对沙漠面积较大，气候环境较复杂的地区进行研究带来许多困难。本文尝试从沙漠一绿洲之间的作用关系入手，分析交错带沙漠化的特征，对沙漠化影响因素进行了研究，建立相应的微分模型，并给出了平衡点的稳定性分析。

Research of Desertification on the Influencing Factors

In recent years, much attention has been given to desertification. There are many researches about desert movement in different research areas and have achieved significant results, but there are few studies about desertification in differential equation. Especially it is very difficult to study some regions that it has larger desert area and more complex climate and environment. In this paper the interaction between sandy land and spares vegetation in oasisdesert eco-tone is analyzed. On the factors of land desertification, a specific model is established a specific model and it＇s stability analysis is given.