固定沙丘植物群落退化严重，需要加强保护，控制放牧强度，防止沙丘活化。
The communities of these sand dune-fixed plants suffer severe degeneration and thus need enhanced protection, grazing control and prevention of sand dunes from becoming mobile.
岛上有没有任何植物的沙丘，但也有古老树木的森林，美丽的花朵和一百多个湖泊。
On the island, there are sand hills without any plants, but there are forests with old trees, beautiful flowers and over a hundred lakes, too.
描绘沙漠的全景时运用广角镜头是最合适的，而对沙丘一侧顽强生存的植物的特写则表现出另一种物质。
A wide shot might best portray one desert, while a close-up of one plant struggling to survive on the side of a dune might best represent another.
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