n the artificial sand-binder vegetation in Shapotou area,Ningxia,Artemisia ordosicawas found to have quite different growing situations and ecological and physiological featuresfrom Caragana korshinskii that were reflected in using the environmental resources, in-cluding time,space and precipitation. Based on this,the important effects of the dynamicchange in environmental conditions,particularly the biocrust formation in sandy land surfaceand the infiltration ol precipitation getting more shallow layer of ...