Wind erosion and generation of dust is one of the most important problems in the Yazd province. To control this phenomenon and overcome the damages a lot of investment has been done for the implementation of many successful and unsuccessful projects across this province. Analysis of erosive winds and estimation of the Resultant Drift Direction (RDD) of sand flow is the fundamental study by which can lead to a more successful implementation of projects, to control wind erosion. In this study, by taking advantages of Wind-rose, Storm-rose and Sand-rose has been analyzed wind speed, wind direction and calculation of wind drift potential (DP) to represent a landscape of wind erosion in the Yazd province and with the results of these analysis, the Resultant Drift Direction (RDD) of sand flow and dust be estimated. The results showed that most of the erosive winds in the Yazd province occur in the spring and summer and the lowest erosion occurs in autumn. The results as well revealed that the average percentage of erosive winds which are capable of producing dust are between 6. 4%, in Yazd city, and 23. 6%, in Herat city, and on average, in 44 days there is the possibility of dust in the Yazd province. Therefore, although the prevalence of erosive winds with speed more than 6 meter per second generally does not exceed 14% but, it has the most important role in the occurrence of the wind erosion and dust generation in the Yazd province and the mobility of a large amount of dust is generally from the southwest and west to the north east and east.

Wind erosion has high potential for damage, especially in arid region due to continuity and extent of erosion in time and space. Therefore, the damage to economic resources is impressive especially soil and vegetation. So, a comprehensive understanding of its formation, function, effects and affected areas is essential. This study was implemented for finding the source of wind erosion and sand movement direction in Khezrabad region, Yazd Province. In this study, Yazd synoptic station anemometer data was analyzed over a period of 15 years (2001-2015) using Sand Rose Graph 3. 0, WD convert and Wrplot View. The results of the spatial analysis of data from the anemometer (wind rose) showed that the dominant wind direction of Khezrabad Plain is Western with 18. 77 percentage of calm wind with speed less than a knots (0. 54 meters per second). The results of the calculation and drawing Storm Rose provided based on wind erosion threshold velocity of 6. 5 meters per second showed that erosive winds mainly blow from the West-North West (WNW) and North West (NW) and West winds (W) less frequency. According to Storm Rose drawn, the frequency of calm winds (less than 6. 5 m/s) in the region is about 96%. This indicates that erosive wind include only about 4 percent of views. Storm Rose provided based on speed threshold showed that North-West (NW), South-West (SW) winds have the most Drift Potential (DP) respectively. The Resultant Drift Direction (RDD) is around 74 degree (Northeast).