风沙活动强度3种估算指标对比及适用性分析

王兆云, 牛改红, 柳本立

Applicability of three indexes for estimating the intensity of blown-sand activity

Zhaoyun Wang, Gaihong Niu, Benli Liu

图4 不同工程案例的地表覆盖状况

Fig.4 The surface coverage in different engineering cases