soil and sedimentation

• 侵蚀泥沙

soil and sedimentation的用法和样例：

例句

1. The runoff sediment has higher clay content than the surface soil, andthe splash soil has higher fine sand content.
   通过对侵蚀上壤的颗粒组成分析表明，侵蚀对土壤颗粒具有选择性，径流侵蚀泥沙中粘粒含量比侵蚀表土含量高，溅蚀泥沙中细沙粒含量变高。