By use of the portable anemoscope and vertical array sand traps,the ecological protective function of Agriophyllum squarrosum on the shifting sanddunes were researched in the field.

• 使用野外风速廓线仪与阶梯式集沙仪,对流动沙丘先锋植物沙米及其群落的生态防护作用进行了野外实地观测研究。