The surface of slope was covered by a complex medium,hereinto,the up layer was soil and the down layer was rock,we called the distribution rock-soil dualistic structure.

• 结果发现,坡地的表层被一层双重、非均匀的复杂介质所覆盖,具体表现为“上覆土壤、下伏岩石”的“岩土二元结构体”;