All fires in Xichang forest fires in Sichuan are extinguished. Experts analyze the fire and the cause of the high incidence of Liangshan forest fires.

China News Network Xichang, April 2nd (Wang Peng, Liu Zhongjun and Tang Yan) The reporter learned from the Forest Fire Joint Defense Command of Jingjiu Township, Xichang City, Liangshan Prefecture, Sichuan Province that as of 12:01 that day, the fire had all been extinguished. , Into the smoke clearing point, guarding the remaining fire, and strictly prevent resurgence.

The forest fire occurred at about 15:00 on March 30, and it lasted for three days. The fire is adjacent to Xichang City, the capital of Liangshan Prefecture, and is located in a famous local scenic spot. The fire line has repeatedly approached ancient buildings, cultural relics protection units, residential areas, schools, gas stations, gas storage stations, etc., so it has attracted much attention. At present, 19 people involved in fire fighting have been killed by the fire, and more than 24,000 people have been evacuated.

On the evening of April 1, the wildfire continued to spread. Photo by Liu Zhongjun

Between 10 am and 12 pm on the 2nd, reporters drove to visit the eastern line of fire (front of Laoshan), the southeast line (back mountain area of ​​the battery plant), and the southern line (Xianshuigou area of ​​Daying Farm). , But there are still many smoke points emitting thick smoke. Several helicopters are fighting the fire from the sea water next to them, and fire fighters are clearing and disposing of the smoke points.

During the three days of the fire scene, the reporter observed that the fire was often rare during the day, but the fire re-ignited or worsened at night. In response, Liu Bo, deputy chief engineer of the Sichuan Forestry and Grassland Survey and Planning Institute, explained that the phenomenon is related to the local dry plateau climate. "From the second half of last year to the present, it began to wind in the afternoon and continued to the evening. Location is certain. "

Liu Bo was interviewed by reporters. Photo by Chen Xuanbin

"The situation of re-ignition exists because the forest here is dense and has not suffered from large fires. There is a large load of combustible materials such as litter." On the evening of March 31, the front of Laoshan, where the fire had been extinguished, was once Large-scale re-ignition occurred. Liu Bo explained that due to the influence of the temperature of the fire field, the air flow changed abruptly, and the microclimate affected the wind direction, making it difficult to fight the fire.

Talking about the cause of the fire, Liu Bo analyzed that in addition to the local climate is dry and rainless, and the fuel load is large, the type of vegetation is also an important reason. "It is dominated by dry Yunnan pine, which has a high content of turpentine and is highly flammable."

Currently in Liangshan Prefecture, in addition to the Xichang forest fire, a forest fire is also occurring in Muli County, more than 300 kilometers away. According to the Sichuan Forest Fire Corps, the fire-fighting area of ​​Muli Forest Fire is larger than that of Xichang. Due to the high mountains and dense forests, the land is wide and the population is sparse, and it is more difficult to extinguish.

Why do forest fires occur in Liangshan Prefecture? As early as the end of 2018, Liangshan Prefecture's forest area reached 40.765 million acres, the forest volume was 333 million cubic meters, and the forest coverage rate reached 45.79%. Liu Bo said, "The forest reserves here exceed 300 million cubic meters. In addition to the dry climate, many places are alpine canyons. It is very difficult for people to reach and it is difficult to ignite." (End)