所谓沙丘活化就是原来属于固定或半固定的沙丘，后来变成了流动沙丘。在我国，沙丘活化已经成为导致西北风沙区土地大面积沙漠化的祸首。
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.
并论述了农田风蚀、草场沙化、固定沙丘活化及流沙前移等主要类型土地沙漠化的发育过程。
Research on the processes of wind erosion of cropland, desertification of grassland, reactivation of fixed dunes and shifting sand movement reveals th...
并论述了农田风蚀、草场沙化、固定沙丘活化及流沙前移等主要类型土地沙漠化的发育过程。
Research on the processes of wind erosion of cropland, desertification of grassland, reactivation of fixed dunes and shifting...
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