alluvial valley的意思|示意

美 / əˈlu:vi:əl ˈvæli / 英 / əˈluviəl ˈvæli /

沉积谷地

Alluvial valley是从拉丁语alluvium（冲积物）中派生出来的一个词，它指河流下游水势改变后所形成的一种特殊植被环境，也就是河谷。它通常与河谷沟坝有关，因为河流有时会由于滑坡、崩塌等原因而决口改变，从而形成新的河谷。

例句：

1. The alluvial valley formed by the river was home to a large variety of plants and animals.

2. Scientists believe that the alluvial valley was created when the river changed course due to landslides.

3. The alluvial valley provided vital resources to the local communities, including fresh water, wood and minerals.

1、 circular alluvial valley 圆弧形沉积河谷

7、 circular-arc layered alluvial valley 圆弧形层状沉积河谷场地

8、 valley alluvial soil 山谷冲积土