无定河上游河道对沙漠化的阻截效应

颜明, 张应华, 贺莉, 程维明, 王随继, 许炯心

Blocking effect of upper reaches of Wuding River on desertification

Ming Yan, Yinghua Zhang, Li He, Weiming Cheng, Suiji Wang, Jiongxin Xu

图4 风沙和沙黄土≤100 μm颗粒百分数含量的空间分布

Fig.4 Spatial distribution of ≤100 μm percentage content of aeolian sand and sandy loess