(Drought Well Drilling Site in Shuangpai County, Yongzhou City. Image provided by Provincial Department of Water Resources)
Huasheng Online, September 20 (Reporter Longteng Correspondent Huang Wangxing) From 8:00 on September 18 to 8:00 on the 19th, there was practically no rain in the province. In the last 30 days, the percentage of rainfall anomalies in the entire province has decreased by almost 90%. Nearly 60% of the province’s rain stations have had no actual rainy days for more than 30 consecutive days. It is expected that in the next week there will be no obvious rain processes in the province and hydrological drought will continue to develop.
Faced with the severe situation where the project’s water storage is decreasing, the drought is gradually worsening, the affected area and scope are gradually expanding and the trend towards continued drought in summer and autumn is evident . anchored the goal of water safety before the end of November, with “water” as the focus, joined the “four closely guarded” and made every effort to achieve the “three guarantees” to minimize losses due to drought.
Transfer and replenishment of water and make every effort to ensure water for production and life
As we entered August, the meteorological drought in our province developed rapidly and the severity was severe. All 122 counties and cities in the province experienced moderate or greater drought, 116 counties and cities experienced severe drought, 97 counties and cities experienced extreme drought, and Cili and Xinshao experienced severe drought for 49 days and 47 respectively. days. sky. The province’s moderate, severe and extra-large hydrological drought accounted for 98%, 84%, and 43% of the province’s land area, respectively.
At present, the total water storage capacity of the various basins in the province is 27.548 billion cubic meters, 22.4% less than the average for the same period of the previous year. In the next stage, the water conservation department will aim to ensure the safety of basic life, production and ecological water in the province by the end of November, and send the large-scale reservoirs of the backbone to replenish 50, 6 million cubic meters of water downstream per day.
After this year’s drought, the water reconstitution project in the northern part of Dongting Hubei has fully exploited the benefits of water reconstitution, in total replenishing 606 million cubic meters of water. Among them, the first phase of the project supplied 587 million cubic meters of water, the maximum water supply in a single day was 16.62 million cubic meters, and the average daily water supply in the last 3 days was was about 9.45 million cubic meters. the second phase of the partially completed project (Anxiang County Huangtudi Pumping Station) accumulated 19 million cubic meters of water supply, effectively alleviating the problem of water use for the population and crops in the region due to drought .
Several irrigated areas of the province can supply 9.006 billion cubic meters of irrigated water, with a daily water consumption of 75 million cubic meters, which can guarantee an irrigated 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 irrigation area of late rice, which can be irrigated for more than 30 days; 639 medium-sized irrigated areas, which can provide 4.043 billion cubic meters of irrigation water and 7.9297 million irrigated area for late rice protection.mu, irrigation can be maintained for about 30 days; the small-scale irrigation project can provide 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. Drought in irrigation of agricultural land in the province is expected to be substantially alleviated by the first ten days of October and a bumper crop of autumn cereals is expected.
The water supply of various rural centralized 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 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 provide water for about 80 days. The water supply project for 1,000 people covers 12.14 million people and can provide water for about 65 days; the water supply project for less than 1,000 people can provide water for about 40 days. If there is no actual rainfall for 15 consecutive days, it is predicted that over 70% of counties and urban areas will need water supplies to varying degrees. In the next stage, the water conservation department will timely start the timeshare water supply, extend the piping network to solve the problem of decentralized water supply and drinking water, add pressurized equipment to restore the water supply in high-altitude areas, and take measures such as drilling wells and searching for water in caves and underground rivers to open up new water sources.
Departmental liaison, do everything to fight drought and reduce disasters
On September 13, the provincial government established a special drought prevention and relief class to organize and guide the province’s prevention and relief activities. Currently, 14 cities and prefectures 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 liaison to respond actively to the most severe and complex drought situations. All departments at all levels of the province resolutely implement the decisions and alignments of the provincial party committee and the provincial government, adhere to “water” as the core, initiate and improve emergency response in a timely manner, consolidate the synergies of work and go all out to fight drought and reduce disasters.
Various departments at all levels strengthened coordination and cooperation, implemented various drought relief measures, and served relief and water supply. Provincial Finance, Water Conservation, Agriculture, Emergency and other departments Relevants collected and integrated various types of 1.77 billion yuan drought relief funds; Borrowing water from the sky, meteorological departments at all levels carried out 876 man-made rainfall enhancement operations on the ground and 11 aircraft rainfall enhancement operations, with a cumulative increase of 528 million cubic meters of water. For emergency water delivery, 63,000 water trucks were sent in response to the difficulty of drinking water due to drought in some high altitude mountainous areas, for a total of over 300,000 cubic meters of water supplied, effectively guaranteeing the basic water for people in arid areas.
Since August, with the gradual decrease of surface waters, several localities have exploited the full potential of groundwater by drilling wells for resistance to drought. Especially recently, the provincial special class for drought prevention and drought relief has repeatedly sent well drilling work for drought resistance, natural resources, water conservation, geology and other departments Fully promote the drilling of wells due to drought. So far the province has drilled 3,861 drought-resistant wells, with a total water supply of 46 million cubic meters. Among these, 21 new wells were drilled on 18 September.
Over the next ten days, except for light to moderate rainfall in northwest Hunan on the 22nd, there will be virtually no rain in most of the province, mostly cloudy weather on sunny days, and meteorological drought will worsen. After 20, cold air penetrated to the south and the high temperature gradually decreased.
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