headward

headward

1. Erosion, which may include undercutting, knick point migration, headward erosion and downcutting, continues but at a much reduced rate.

一些树最初在深冲沟出现前的浅冲沟中生长，一些冲沟里没有树木生长的迹象，生长的树木就是最初分开它们的栅栏标记。

2. headward erosion

向源侵蚀 朔源侵蚀

3. headward acceleration

头向(足到头)加速度, 足向(头到足)过载

4. headward gradient acceleration

头向梯度加速度

5. headward growth

头方生长

6. gully bed incision and headward erosion

控制沟道下切

7. Formulas for Calculating Headward Erosion on a Bed Load-Delta

推移质三角洲溯源冲刷计算公式

8. THE CONCEPTS AND MATHEMATICAL MODEL OF DOWNW-ARD SEDIMENTATION AND HEADWARD SEDIMENTATION

沿程淤积与溯源淤积的概念与数学模型