Field data shows that reasonable distribution of contour shrub belt is of significant soil and water conservation effect with runoff decrease of over 30%, sediment reduction of more than 50%, and it can also increase plant coverage of 15% to 20% on slope farmland and forms shrub network on hill slope,and change the situation of ecological e.

Combining Mesoscale Model (MM5) and Shaos wind erosion scheme, numerical simulation on sand fixed effect of shrub belts and straw checkerboard barriers were conducted on the top of the Mogao Grottoes.