关键词: 塔克拉玛干沙漠, 中部地区, 风沙环境, 起沙风时间数, 输沙强度

Abstract: With the adverse circumstances, the characteristics of blown sand environment in the hinterland of the Taklimakan Desert up to now can not be acknowledged on the basis of the quantitative analysis. This paper, through the analysis on meteorological elements, the observations in field and the calculations, analyzed the characteristics of the blown sand environment in this area, and founded the equations of the sand transport. The results show that on the edge of the desert, the effective wind was 2.70×10⁴ min annually, and the effective wind formed with broadly modal regimes. The total sand transport was 5 500 kg·m^-1·a^-1. While in the hinterland of the desert, there formed effective winds that with unimodal. The effective wind annually arrived at 4.61×10⁴ min, the total sand transport was 8 700 kg·m^-1·a^-1, and the maximum was 11 000 kg·m^-1 (1997-06 to 1998-05). Furthermore, the morphodynamics of dunes were not unified completely to the modes that Tomas expressed in 1991. And also there are divergences with the declarations Coral.S.Breed claimed on Taklimakan Desert.

Key words: Taklimakan Desert, middle area, blown sand environment, effective wind, sand transport