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3 风沙和沙黄土的粒度累积百分数(A)及中值粒径分布(B) |
Fig.3 Cumulative curve of particle size percentage (A) and median particle size distribution diagram (B) of aeolian sand and sandy loess |
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