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The meteorological drought warning has been issued for 34 consecutive days, and the drought continues in many places in the south
2022-09-22 02:35:17
(Original title: Meteorological drought warning has been issued for 34 consecutive days, and the drought continues in many places in the south)
Recently, drought has continued in many parts of the Yangtze River Basin. At present, the Central Meteorological Observatory has issued a meteorological drought warning for 34 consecutive days.
According to the meteorological drought monitoring on September 20, there are still moderate to severe meteorological droughts in Jiangsu, Anhui, Henan, Hubei, Zhejiang, Fujian, Jiangxi, Hunan, Guizhou, Guangdong, Guangxi, Chongqing, Sichuan and other places.
Zhang Yingxian, senior engineer of the National Climate Center of the China Meteorological Administration: According to the detection, there are relatively obvious drought conditions in the central, western and southern parts of East China, central to southern China, and the northeastern part of Southwest China. The west, most of Jiangxi, most of Hunan, southeastern Chongqing and northeastern Guizhou have reached the level of extreme drought. At present, in areas such as the Yangtze River Basin, the area of extreme drought exceeds 500,000 square kilometers.
The drought affected a wide range and lasted for a long time. At 18:00 on the 20th, the Central Meteorological Observatory continued to issue a yellow drought warning. This is also the 34th consecutive day that the Central Meteorological Observatory has issued a drought warning since this summer.
Zhang Yingxian, senior engineer of the National Climate Center of the China Meteorological Administration: In the Yangtze River Basin, the number of meteorological drought days with moderate drought and above since July 1 has been more than 20 days more than the same period of normal years, which is the most in the same period in history since 1961.
The whole province of Hunan reaches moderate or above meteorological drought
The reporter learned from the special class on drought prevention and drought relief in Hunan Province that, affected by the continuous drought, the entire province of Hunan has reached a moderate or above-moderate meteorological drought. As of September 19, Xinshao County, Shaoyang City, Hunan Province, continued to suffer from severe drought for 47 days. It was one of the most severely drought-affected counties in Hunan, and the masses had difficulty drinking water. To this end, Xinshao County has taken measures such as supplying water into the mountains and drilling wells on site to fully guarantee the villagers' production and living water.
Why did the drought last so long? When will it ease?
According to meteorological monitoring, the area of extreme drought in the Yangtze River Basin and other places currently exceeds 500,000 square kilometers, and the number of meteorological drought days has reached the highest number in the same period since 1961. So why did the drought last so long? When will it be relieved? Check out the presentations of the meteorologists.
Zhang Yingxian, senior engineer of the National Climate Center of the China Meteorological Administration: The reason for the long duration of this drought is mainly because the rainy season in China has been relatively short since summer, and there were "empty plums" in some areas, while in July and August In January, typhoons cannot enter China's inland, which makes the precipitation in the middle and lower reaches of the Yangtze River in China significantly less than the same period of the year. In addition, we have encountered the strongest high temperature event since 1961, so it is said that high temperature and little rainfall have jointly led to the occurrence of persistent drought.
According to meteorological monitoring, this summer, the precipitation in the central and eastern regions is generally “more north and less south”. The rainfall in the Yangtze River Basin is the lowest since 1961 in the same period in history. For example, the rainfall in Changsha and Nanchang in August was only 6.3 mm and 0.1 mm respectively. In September Since then, the precipitation has even been zero; as of the 20th in Jiangxi, the province has continued to suffer from severe and above meteorological drought.
Zhang Yingxian, senior engineer of the National Climate Center of the China Meteorological Administration: The relief of the drought mainly depends on whether there is an obvious precipitation process in the later period. According to the prediction of the Central Meteorological Observatory, in the next week, there will be obvious precipitation processes in most of Sichuan, western Guizhou, Jianghan and other places in my country, so the drought in these areas will be relieved to a certain extent. However, precipitation in most areas of Jianghuai and Jiangnan is still sparse, so the meteorological drought in these places may continue. It is still necessary to prevent and combat drought and seize the opportunity to do artificial rain enhancement work to ensure water for agricultural production.
The National Climate Center predicts that the precipitation in the middle and lower reaches of the Yangtze River in autumn will be significantly less than the same period of the previous year, and it is necessary to pay close attention to the possible continuous drought in summer and autumn.
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Yellow warning of meteorological drought: 7 provinces and cities including Jiangxi, Hunan and other provinces have special drought
The Central Meteorological Observatory continued to issue a yellow warning of meteorological drought at 18:00 on September 21:
Weather and drought monitoring on September 21, southwestern Jiangsu, most of Anhui, central and southern Henan, most of Hubei, southern Zhejiang, Fujian, Jiangxi, Hunan, central to northern Guizhou, northern and eastern Guangdong, central and northern Guangxi, and southern Chongqing There are moderate to severe meteorological droughts in southeastern Zhejiang, central Anhui, western Fujian, most of Jiangxi, most of Hunan, southeastern Chongqing, and northeastern Guizhou. It is expected that in the next three days, there will be moderate to heavy rains in parts of northeastern and southern Sichuan and most of Chongqing, which will help alleviate the meteorological drought. Good work related to drought prevention and drought relief.
Defense Guide:
1. Sichuan and Chongqing should pay close attention to the evolution of the weather. If there are conditions for rain-enhancing operations, rain-enhancing operations should be carried out in a timely manner to alleviate the current drought;
2. Relevant departments activate emergency backup water sources, dispatch water sources within their jurisdictions, and give priority to ensuring urban and rural residents' domestic water use;
3. Take water-saving measures in agricultural and industrial production processes, reduce agricultural and industrial water consumption, and limit non-productive high water consumption and water consumption in service industries;
4. Some areas of Zhejiang, Anhui, Fujian, Jiangxi, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Guizhou and other places have high forest fire risk meteorological levels. Strict precautions should be taken, and wild fires should be prohibited to ensure the safety of forest areas.
97 counties and urban areas in Hunan are extremely dry, and the water level at Chenglingji Station fell below 20 meters for the first time in 118 years in September
97 counties and cities in Hunan have reached extreme drought, and the cumulative total length of rivers is about 950 kilometers.
The reporter learned today (September 21) from the special class on drought prevention and drought relief in Hunan Province that due to the continuous drought, all 122 counties and cities in Hunan Province have reached moderate or higher meteorological drought, and 97 counties and cities have reached extreme drought. The province has 56 and 34 rivers with a drainage area of 50 square kilometers and more than 100 square kilometers, respectively, with a cumulative total length of about 950 kilometers. The drought has caused people in many places to have difficulty with water for production and living. For this reason, the disaster-stricken areas have done a good job in water supply through measures such as pulling water and supplying water, opening up new water sources, and pumping and storing water to alleviate the people's production and living water difficulties.
As of September 20, Xinshao County, Hunan Province has continued to suffer from severe drought for 48 days. It is one of the worst-hit counties in the province, and the masses have difficulty drinking water. To this end, Xinshao County has taken measures such as supplying water into the mountains and drilling wells on site to fully guarantee the villagers' production and living water.
In Xinminqian Village, Jukoupu Town, Xinshao County, after days of intense construction by the construction team, a water well with a diameter of about 5 meters and a depth of about 8 meters was built, and the cool well water flowed into the farmland through the canal. It is understood that the newly built well can meet the normal domestic water needs of more than 1,000 people in the village. In Wenxianguan Village, Jukoupu Town, not far away, due to the high terrain, the village's drinking water source is gradually depleted due to the impact of drought, and the villagers are extremely stressed. After learning about the situation, the Jukoupu Party Committee and Government immediately sent drinking water to the villagers.
As of September 20, a total of 15 new wells have been dug in Xinshao County, which has solved the problem of safe drinking water for more than 6,600 people. For villages with high altitudes and poor water source conditions and special groups with weak emergency response capabilities, methods such as pulling water and sending water are adopted to ensure basic living water for the affected people.
Also in order to find water, Loudi City, Hunan Province organized water conservancy and agricultural technology experts to sink to the front line to find water to fight drought. In Xintang Village, Qiaotouhe Town, Lianyuan City, Loudi, an old well in the village has not been used for many years, and the silt caused the well water to decrease. Under the guidance of the water conservancy department, the villagers dredged the well and pumped water from the bottom to fight drought.
As of September 19, Loudi City has repaired and newly drilled 530 wells, added 23,000 cubic meters of water supply daily, solved 98,172 people with drinking water difficulties, and guaranteed an irrigation area of 24,915 mu.
The reporter learned from the provincial special class on drought prevention and drought relief that in the next week, there will be no significant rainfall in Hunan Province, and hydrological drought will continue to develop. About 95% of the province may experience severe hydrological drought, and about 55% of the area may experience severe hydrological drought. drought.
For the first time in 118 years! The water level of Dongting Lake Chenglingji Station fell below 20 meters in September
The reporter learned from the Hunan Provincial Department of Water Resources that at 15:00 on September 20, the water level of Dongting Lake Chenglingji Station fell below 20 meters. At 8:00 on September 21, the water level had dropped to 19.89 meters, which was 7.5 meters lower than the same period of the previous year. It is understood that this is the first time that the water level at Chenglingji Station fell below 20 meters in September since records began in 1904.
Since August 9, the water level of Chenglingji Station has been at the lowest water level in the same period. On August 27, it broke the lowest record in August, and on September 1, it directly broke the lowest record in September. By September 21, it was lower than the lowest at the beginning of this year. water level.
The weather forecast shows that from the 20th to the 29th, most areas in Hunan Province will be dominated by sunny and cloudy weather, and the meteorological drought will continue. It is expected that by the end of September, the main rivers in the province will maintain a low water level, the water level of Dongting Lake Chenglingji Station may drop to about 19.4 meters, and the flow of medium and small rivers may increase.
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