图20. 柴达木盆地的长直线形沙丘(来源:Google Earth)中心点位置:93.90°E,37.04°N;箭头代表沙丘发育风向
Fig.20. Rectilinear dunes in the Qaidam Basin (source: Google Earth)Center point:93.90°E,37.04°N; Arrows represent the wind direction of dune development