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Analysis on Preserving Benefit of the Sand-fixation Belt of Highway in Otindag Sandy Land

WU Jun-ying et al(Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010019)  
The wind velocity,underlying surface characteristics and the sand flow structure in the sand-fixation belt were analyzed through determining wind velocity and sediment discharge of stabilizing belts in Otindag sandy land,the protective benefits and rational design of stabilizing belts were further clarified.The results indicated that the stabilizing belts in Otindag sandy land were prophase protection bands which plants along two sides of the highway could timely bud and grow,and stable plant community was formed finally.So the stabilizing belt is the important function belt of realizing persistent ecological protection in protective system.
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