Five people lost contact due to the landslide in Lincang, Yunnan. Why is there a landslide in this area?

Landslides are caused by natural and human factors. The continuous erosion of the mountain by rainfall, coupled with the loose structure of some mountains and less vegetation, is easy to cause landslides in these southwest mountainous areas when it rains. There are several reasons for the landslide in Lincang, Yunnan:

1. Lincang, Yunnan Province is located in a steep mountain area, with large terrain drop and steep slope, which is one of the incentives for landslides. Lincang, Yunnan Province is located at the end of Hengduan Mountains, with many mountains, many of which are difficult to repair slopes, which leads to inconvenient local traffic and difficult rescue when landslides occur. Lincang is located in a certain landform with many slopes, which leads to landslides.

Second, the artificial development of local mountainous areas has changed the original appearance, destroyed vegetation and changed the slope, which is prone to landslides. In order to improve traffic and develop local resources, Lincang local government manually excavated the foot of the slope and built roads and railways, which changed the original shape of the mountain. Local residents cut down trees and built houses in the mountains, which caused the destruction of vegetation; These reasons often make the lower part of the mountain lose support, leading to the decline of the mountain. Blasting is the most harmful to the mountain. Lincang, Yunnan Province is economically backward but rich in mineral resources. Exploiting mineral resources by blasting is very common, which is the biggest reason for changing the shape of the mountain.

Third, the local area is in the rainy season, and continuous rainfall increases soil moisture, making the soil layer more prone to landslides. July and August are the rainy season in Yunnan, and the damaged vegetation has lost its water storage function. Coupled with the instability of the mountain, landslides occurred. In rainy days, some wet mountain roads are most prone to landslides. Rain will make the soil moist, reduce the friction between soils, and landslide is easy to occur under the influence of heavy rainfall; Therefore, in Lincang, Yunnan, you must pay attention to safety when walking on mountain roads in rainy days, and landslides and road breaks occur from time to time.

Generally speaking, the landslide in Lincang, Yunnan Province is man-made destruction of vegetation and mountain structure, plus rain, so everyone should pay attention to safety when traveling in rainy days.