又称选择风化，是由于组成岩石的矿物成分、结构构造差异，导致风化、剥蚀程度不同的岩石表面出现凹凸不平的现象。差异风化是砂岩峰林地貌形成的重要条件。Differential weathering, also called selected weathering, refers to the phenomenon that different weathering extents resulted by compositional and structural differences of the rock causes uneven surface of the rock. Differential weathering is an important condition for the formation of the sandstone peak forest landform.