夷平作用

岩溶演化的关键性因素是构造上升速率。岩溶地形类型发育序列的模式与基面控制、地面剥蚀速度、侧方夷平作用及构造抬升有密切关系。

The critical factor in the evolution of the karst is the rate of tectonic uplift , a model of evolution relates the contrasting types of karst landscapes to base level control and the relative rates of surface denudation , lateral planation and tectonic uplift .

不同类型的夷平面有不同的形成过程，夷平作用的差异导致了夷平面类型的差异。

Different type of planation surface has different formation , the difference of planation results in the difference of planation surface .

原始的夷平面具有分布面积较大（全流域范围）、坡度较小、高度较低、形成所需时间较长、有夷平作用的痕迹等特点。

Original planation surface has some features , for example , it appears in large area with low altitude , small gradient and taking a long formation period , etc.