求翻译：近年来,沙漠化问题日益受到关注, 虽然各科学有关沙漠化的研究较多,也取得了显著的成果,但是在微分方程领域中有关沙漠化的研究却相对很少。通过讨论绿洲-沙漠交错带中沙漠与绿洲之间的相互作用关系，参考传染病模型，根据前人提出的沙漠扩散预测模型的基础上建立了比例依赖函数的沙漠化预测模型，最后以民丰县为例验证了模型的正确性。利用龙格-库塔方法对数学模型进行了数值模拟，并与遥感图像处理技术相结合对民丰县绿洲进行了沙漠动态变化分析与预测，得到了较理想的结果，预测得到的结果与实际数据之间的偏差合理。提出的数学模型简单且实用，在预测和治理沙漠扩散工作中具有较大意义。是什么意思？

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In recent years, and the desertification issue of growing concern, although the science related to desertification, the study has also been made more remarkable results in differential equations, but in the field of study related to desertification relatively little. Through discussions with the des

In recent years, the desertification question day by day received the attention, although various science related desertification research were many, also has yielded the remarkable result, but in differential equation domain related desertification research actually relative very few.Interlocks in

In recent years, desertification problems have become an increasing concern, although the more scientific studies on desertification, also achieved significant results, but in the field of differential equations in the studies on desertification are relatively few. Through discussion of OASIS-desert

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