By the roadbed height proposed and the analysis of wind velocity flow field, the active sand dune zone should be kept between 1.

按风速流场分析所建议的路基高度为：流动沙丘区路基合理高度宜在1。

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The result suggests that the sand dune is characterized by semi-active dune, the move speed is very slow, and all round the district desertification shows negative increase.

研究结果表明，区域沙丘属于半固定沙丘，移动速度缓慢，全区的沙化地总体表现为负增长。

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The result suggests that the sand dune is characterized by semi-active dune, the move speed is very slow, and all round the district desertification shows negative increase.

研究结果表明，区域沙丘属于半固定沙丘，移动速度缓慢，全区的沙化地总体表现为负增长。

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