With the heavily shrink of the Aibi Lake level in recent years

a large area of the lake has become bare land which provides sand for sandstorm.The wind erosion status of the Aibi Lake is analyzed through the process of high resolution QuickBird image data.The strong wind erosion area occupies 63% of the total lake area and is mainly distributed in the east and west part of the lake without vegetation cover.The micro-degree and moderate wind erosion areas occupy 37%of the total area and are mainly distributed in the south and north part of the lake with vegetation cover.The area of bared lake bottom is 430 kmz and is located in the northwest of the Aibi Lake.From the hue

shape and texture changes of image

the landform and wind direction of bared lake bottom are reflected.From the measured data analysis

the band sloping area with a width of 4.5 km

length of 10 km and 1/5000 gradient forms in northwest to southeast direction

creating favorable condition for forming sandstorm.In order to improve the ecological environment of the Aibi Lake basin

the main method adopted is increasing the input water of the lake to reduce bared lake bottom and control wind erosion.