Numerical Simulation For The Dynamic Changes Of Sandy Land In The Southern Edges Of Tarim Basin

In recent years, much attention has been given to desertification,there are many researches about desertification in different research areas and have achieved significant results, but there are few studies about desertification in differential equation area, especially in China. In this paper the interaction between sandy land and sparse vegetation in oasis-desert eco-tone was analyzed and based on the analysis, a differential model for predicting desertification was presented and verified using Niya oasis as an example. The fourth order Runge-Kutta scheme was applied to the model. Dynamic changes of sandy land were conducted using remote sensing technology, and the trend of desertification was predicted with the differential model. The result was fairly well. The model is simple and practical and will be very useful in predicting and managing desertification.