How to distinguish landslide from debris flow?

Debris flow is a kind of sudden and destructive special flood. A mudslide, which has not been experienced for a long time, is fierce and destructive. Before the Ming Dynasty, Daqiaohe area in Dongchuan City, Yunnan Province was a place with rich products and dense population. Now it is a barren beach, full of gravel, and the culprit is mudslides.

The formation of debris flow is closely related to geological structure and rainfall. In the valley with steep terrain and more sediment and stones, whenever there is heavy rain or long-term continuous rainfall, it is easy to form mudslides. From the perspective of human factors, it is mainly unreasonable development, such as deforestation and loss of vegetation protection on hillsides; In the construction of roads, railways, canals and other projects, the surface of hillsides is destroyed, unreasonable quarrying and mining, and the stratum structure is destroyed, which will all lead to the occurrence of man-made mudslides.