Simulated sand-fixing shrub is a new type of preventing wind and combating sand material which is made of high polymer materials mingled with antiaging agents in accordance with the simulation principle,its shape is as same as the shape of wild desert shrubs such as Artemisisa desertorum,Artemisia ordosica etc.having good effects in reducing wind and fixing sand.The different porosity of simulated sand-fixing shrubs were tested to their capacity of preventing wind and combating sand in the wind tunnel under...