(Drought well drilling site in Shuangpai County, Yongzhou City. Photo provided by Provincial Water Resources Department)
Huasheng Online, September 20 (Reporter Longteng Reporter Huang Wangxing) From 8:00 on September 18 to 8:00 on the 19th, there was basically no rain in the province. In the last 30 days, the percentage of precipitation anomalies in the entire state has decreased by almost 90%. Almost 60% of the state’s rainfall stations had no effective rainfall days for more than 30 consecutive days. It is expected that, during the next week, there will be no obvious rainfall process in the province, and the hydrological drought will continue to develop.
In view of the serious situation that the project’s water storage is decreasing, the drought is gradually worsening, the affected area and scope are gradually expanding, and the trend of continuous drought is summer and autumn clearly “Anti-extreme drought”, anchor the goal of water security before the end of November, with “water” as the core, adhere to the “four close watches”, and make every effort to fulfill the “three guarantees” to reduce drought losses.
Transfer water and replenish, and make every effort to secure water for production and living
Arriving in August, the meteorological drought in our state developed rapidly and the severity was severe. All 122 counties and cities in the province have reached moderate or higher drought, 116 counties and cities have reached severe drought, 97 counties and cities have reached extreme drought, and Cili and Xinshao have maintained severe drought for 49 days and 47 days respectively. . sky The state’s moderate, severe and extra-severe hydrological droughts accounted for 98%, 84% and 43% of the state’s land area, respectively.
Currently, the total water storage capacity of various reservoirs in the province is 27.548 billion cubic meters, which is 22.4% lower than the average of the same period of the previous year. In the next step, the water conservation department will aim to ensure the safety of living water, production and basic ecological water in the province before the end of November, and send the large-scale backbone reservoirs to replenish 50.6 million cubic meters of water to down the river one by one. Day.
Since this year’s drought, the water replenishment project in the northern part of Dongting Hubei has given full play to the water replenishment benefits, cumulatively replenishing 606 million cubic meters of water. Among them, the first phase of the project replenished 587 million cubic meters of water, the maximum water replenishment in one day was 16.62 million cubic meters, and the average daily water renewal rate in the past 3 days was about 9.45 million meters cubic. the second phase of the partially completed project (Huangtudi County’s Anxiang Pumping Station) replenished 19 million cubic meters of accumulated water, alleviating the problem of effective water use for the population and crops in the region due to drought.
Various irrigation areas in the province can supply 9.006 billion cubic meters of irrigation water, with a daily water consumption of 75 million cubic meters, which can guarantee an irrigation area of 19.1 million mu of late rice. Among them, there are 23 large-scale irrigation areas, which can provide 1.796 billion cubic meters of irrigation water, and 4.3305 million mu of late rice irrigation area, which can be irrigated for more than 30 days; 639 medium-sized irrigation areas, which can provide 4.043 billion cubic meters of irrigation water and 7.9297 million irrigation area for late rice protection. mu, the irrigation can be maintained for about 30 days; the small-scale irrigation project can supply 3.167 billion cubic meters of irrigation water, and the late rice irrigation area is 6.8406 million mu, and the irrigation can be maintained for about 25 days. By the first ten days of October, it is expected that the drought in farmland irrigation in the province will be basically eased, and a tremendous harvest of autumn grains is expected.
The water supply of various rural central water supply projects in the province is about 383 million cubic meters, and the average daily water demand of rural residents is about 5.4 million cubic meters, which can provide water to 46.3 million rural residents for more than 2 months. , of which 1,001 thousand tons The water supply project for 10,000 people covers 27.81 million people and can supply water for about 80 days. The water supply project for 1,000 people covers 12.14 million people and can supply water for about 65 days; the water supply project for less than 1,000 people can supply water for about 40 days. If there is no effective rainfall for 15 consecutive days, it is expected that more than 70% of counties and urban areas will require water supply to varying degrees. In the next step, the water conservation department will begin to share water supply time in a timely manner, extend the pipeline network to solve the problem of decentralized water supply and drinking water, add pressurized equipment to restore water supply in high altitude areas, and taking measures such as drilling wells and finding water in caves and underground rivers to open up new water sources.
Departmental liaison, go all out to fight drought and reduce disasters
On September 13, the provincial government established a special department for drought prevention and drought relief to organize and lead the province’s drought prevention and relief work. Currently, 14 cities and precincts in the province have established special classes for drought prevention and drought relief, and special classes for drought prevention and drought relief at all levels have strengthened coordination and relations to actively respond to more severe and complex drought situations. All departments at all levels in the province firmly implement the decisions and statements of the provincial party committee and the provincial government, adhere to the “water” as the core, initiate and improve emergency response in a timely manner, consolidate synergies work, and going all out to fight drought and reduce disasters.
Various departments at all levels have strengthened coordination and cooperation, implemented various drought relief measures, and served drought relief and water supply. Provincial finance, water conservation, agriculture, emergency departments and other relevant departments have raised and integrated various types of drought relief funds of 1.77 billion yuan; borrowing water from the sky, meteorological departments at all levels carried out 876 artificial rain improvement operations on the ground, and 11 aircraft rain improvement operations, with a cumulative increase of 528 million cubic meters of water. For emergency water delivery, 63,000 water trucks were dispatched in response to the difficulty of drinking water due to drought in some high mountain areas, with a total of more than 300,000 cubic meters of water delivered, guaranteeing the basic living water for people to all purpose. in arid areas.
Since August, with a gradual decrease in surface water, different places have taken full advantage of the potential of groundwater by drilling wells for drought resistance. Especially recently, the province’s special class for drought prevention and drought relief has sending well drilling work for repeated droughts. resistance, natural resources, water conservation, Geology and other departments Fully promote drought well drilling. To date, the province has drilled 3,861 drought-resistant wells, with a cumulative water supply of 46 million cubic meters. Among them, 21 new wells were drilled on September 18.
In the next ten days, except for light to moderate rain in northwest Hunan on the 22nd, there will be basically no rain in most of the province, mostly cloudy weather in sunny days, and meteorological dryness will get worse. After the 20th, cold air penetrated to the south, and the high temperature gradually decreased.