丹霞地貌区存在着完整的原生演替与次生演替系列。

Space-for-time substitution is an important method to study succession, while it needs intact spatial succession series.

youdao

丹霞地貌区存在着完整的原生演替与次生演替系列。

Space-for-time substitution is an important method to study succession, while it needs intact spatial succession series.

youdao