What meteorological disasters are there in Guizhou

1. Severe storm disasters (tornado, hail, thunderstorm, gale, thunderstorm, etc. ): This kind of disaster is mainly caused by extreme strong convective weather, which has a small influence range, but it is strong, sudden, serious and harmful. For example, on February 20 this year, Shuangliu Forest Farm in Kaiyang County was hit by a strong wind. In the dense forest, many trees were broken by the waist, and some were uprooted and fell to the northeast. More than ten thousand trees were destroyed, covering an area of several hundred mu, resulting in direct economic losses of several hundred thousand yuan. The fallen trees crushed the nearby high-voltage line, and a ranger was almost injured. This incident is similar to the wind disaster in Xi Du Forest Farm on1October 30th. 1994+065438.

2. Rainstorm and flood: The flood caused by rainstorm is the most influential and fastest-growing disaster. Modern floods are characterized by high frequency, wide influence range, long duration and great disaster intensity. For example, in196, the catastrophic flood disaster caused crops to suffer17.54 million mu, and the economic loss was as high as160 billion yuan. The disaster caused the flood peak of Nanming River in Guiyang to exceed the warning water level by 2.83 meters. The roaring river raged in the low-lying areas along the river, and many bridges on the Nanming River in the urban area were washed away. The guardrail and deck of Jiaxiulou Bridge were washed away at the flood peak, and the river turned over Jiaxiulou Bridge. Many low-lying streets in the urban area are already in Wang Yang, and the moat in the city has been submerged; The Guanshui Lane on the left side of Jiaxiu Building is nearly 2 meters deep, and many dormitory workers nearby are besieged 14 hours.

3. Drought: Drought caused by less rainfall is the main meteorological disaster that plagues agricultural development in Guizhou. According to statistics, the affected area in Guizhou 1949- 1990 was 389.25 million mu, with the third disaster rate in China and the first in the south. For example, 1996 suffered a hundred days of drought in winter and spring. From February last year to March of that year, crops in the province were affected by 338,000 hectares, resulting in 205,000 hectares of disasters, with a total harvest of 6,543,807 hectares, a reduction of 6,543,802,000 tons of grain production and 8,000 tons of oil production, resulting in 76.26 million people and 76,000 people.

4. Cold damage (spring cold, autumn wind, freezing, snowstorm, etc. ): It has a great impact on agricultural production, transportation and so on. Among them, the autumn wind is an agricultural meteorological disaster in which the booting stage of rice occurs for three consecutive days from August to early September, and the daily average temperature is lower than 20 degrees, which leads to an increase in rice empty shell rate and a decrease in yield. For example, since August 9, 2002, the continuous low temperature and rainy weather in most parts of the province lasted for 5 ~ 12 days, resulting in the reduction of grain production in the province by 2 1%, which is the heaviest autumn wind year in our province. Another example is the snowfall of +65438 on February 25, 2002, which caused all long-distance and short-distance buses in Guiyang bus station to stop running, the airport was forced to close, traffic was paralyzed, and many traffic accidents occurred, and more than 50 people suffered from slips and fractures. The impact of snowfall on transportation, power supply, communication and water supply industries is more obvious in higher terrain areas.