Sand Morphology Distribution Characteristics of the Southwest Buguli Desert

Abstract

The morphology of the natural sand in the southwest of Buguli desert, Xingjiang, China, has been studied to determine the sand-mass flux of the wind-sand flow, sand particle size distribution and morphology distribution. The results show that, when the average wind speed is 6.7m/s 2 m high from the ground, averagely, about 98.1% of the winds drifting sands have the particle size ranging from 0.05mm to 0.15mm. Under the wind-sand flow state, the main sand shape is given priority to the rounded or subangular shapes, which account for 94.7 ~ 96.1%. With increasing height from 0 to 4 cm, the probability of finding rounded sands is getting smaller, and the size of sand particles with higher probability to be round is also getting smaller: from the range of 0.15 ~ 0.20mm to the range of 0.10 to 0.15mm.