China News Service, March 2 According to the WeChat official account of the Ministry of Emergency Management on the 2nd, the Ministry of Emergency Management, together with the Ministry of Water Resources, the Ministry of Agriculture and Rural Affairs, and the Bureau of Meteorology, conducted a consultation and analysis of the national natural disasters in February.
In February, my country's natural disasters were dominated by drought, low temperature and freezing, and snow disasters. Wind and hail, floods and geological disasters, forest and grassland fires, and earthquake disasters also occurred.
Data shows that various natural disasters caused 1.132 million people to be affected, 2 people died, more than 100 houses collapsed, more than 1,300 houses were damaged, 73.7 thousand hectares of crops were damaged, and a direct economic loss of 890 million yuan.
Compared with the average of the same period in the past five years, the number of people affected by the disaster, the area of crops affected and the direct economic loss increased by 66%, 55%, and 68%, respectively. The number of dead or missing and damaged houses decreased by 47% and 93%, respectively.
1. The first large-scale rainfall this year occurred in the south, and the drought in some areas has been alleviated
On the eve of the Spring Festival (February 8-10), the southern region experienced the first large-scale rainfall process this year. The accumulated rainfall in most areas south of the Yangtze River exceeded 10 mm, adding 64.5 billion cubic meters of rainwater.
The storage capacity of reservoirs in the arid areas of the south has increased. Among them, the storage capacity of large and medium-sized reservoirs in Zhejiang Province has increased by 180 million cubic meters, and the reservoirs in five cities in southern Hunan Province, including Shaoyang and Chenzhou, which have been severely affected by drought, have increased storage capacity by 180 million cubic meters. , Guangdong implements artificial rain enhancement operations with an average rainfall of 60 mm.
This rainfall process has the characteristics of wide rainfall range, heavy rainfall in a single day, and gentle rainfall.
At the peak of the early drought, the cumulative drought disaster caused 1.04 million people in Zhejiang, Jiangxi, Hunan, Guangxi, Yunnan and other places, and 277,000 people needed assistance due to drought. The affected area of crops was 68 thousand hectares, and the direct economic loss was 550 million yuan.
Affected by the rainfall and local efforts to fight drought and reduce disasters, the drought in Guangxi and Jiangxi provinces (regions) has basically been relieved, and the drought in Zhejiang and Hunan has been partially alleviated.
2. Low temperature freezing and snow disasters in Northwest China and other places
In early and mid-February, there were no large-scale freezing and snow disasters across the country.
Since the 22nd, large-scale rain, snow and cooling processes have occurred successively across the country. On the 25th, the north ushered in a large-scale heavy snowfall. The precipitation of 100 meteorological stations in Shanxi, Henan, Shaanxi and other places exceeded the historical extreme value of the same period.
Shanxi issued a red warning for blizzard. The depth of local snow in Henan exceeded 20 cm, roads in many places were frozen, road traffic was affected, and some facility agriculture was damaged. However, precipitation also effectively improved the local soil moisture, which is conducive to winter wheat overwintering.
According to statistics, in February, the low-temperature freezing and snow disaster caused 75,000 people to be affected, 1 person died, 57,000 hectares of crops were damaged, and the direct economic loss was 320 million yuan. Compared with the average value of the same period in the past five years, the affected area of crops and the direct economic loss were respectively. A decrease of 83% and 5%.
3. Sporadic wind and hail, floods and geological disasters in the northwest and southwest
In February, affected by the large-scale rainfall in the south and strong local convective weather in the northwest and southwest regions at the beginning of the month, small-scale floods and geological disasters occurred in parts of the southwest, and sporadic wind and hail disasters occurred in Shanxi, Inner Mongolia, Tibet, and Ningxia.
Among them, on the 6th, due to strong winds in Xigaze and Ngari, Tibet, more than 4,000 people were affected, and more than 800 houses and livestock sheds were damaged; on the 9th, flood disasters in Yuxi City, Xishuangbanna, Yunnan Province caused part of the farmland to be flooded, corn and pepper Waiting for cash crops to be affected.
In addition, geological disasters such as small landslides and mountain collapses occurred in Guizhou, Guangxi, Chongqing, Yunnan and other places.
4. Forest fires frequently occur in some southern provinces
According to preliminary statistics, there were 103 forest fires nationwide in February, with no casualties; no grassland fires occurred.
Forest fires are concentrated in areas, and the number of forest fires in the five provinces of Guangdong, Fujian, Zhejiang, Hubei and Shaanxi accounted for 65% of the country.
The scale of the fire is relatively small. Except for the two inter-provincial forest fires in Shanxi, Hebei and Henan that have been inspected, the remaining fires are all forest fires below a relatively large scale, and there has been no spread to large-scale forest fires.
5. Small and medium earthquakes occurred in the western region, which did not cause disaster losses
In February, there were no earthquakes of magnitude 5.0 or higher in my country's mainland, and the seismic activity level was obviously weak.
There were 5 earthquakes of magnitude 4.0 or higher, distributed in Tibet, Xinjiang, Qinghai and Sichuan. The highest magnitude was the 4.7 magnitude earthquake in Tibet's Tingri on February 2, which caused minor damage to a small number of houses.
On February 13, an earthquake with a magnitude of 6.1 occurred in eastern Tajikistan, about 54 kilometers away from my country’s Xinjiang border. A certain amount of tremor was felt in Kashgar, Kezhou and other places in Xinjiang, and no disaster losses were caused.