After a long drought, there will be rain in many places in Henan, and some droughts will be alleviated
According to the monitoring of Henan Meteorological Observatory, from 20:00 on June 15 to 17:00 on June 16, light to moderate rain occurred in most parts of the north of the Huaihe River in Henan, and heavy to heavy rain occurred in some counties and cities (districts) between the Yellow River and Huaihe River, local heavy rain. The average precipitation of the whole province is 14.7 mm, and the average precipitation of prefectures and cities - Zhengzhou 32.4 mm, Zhoukou 23.7 mm, Kaifeng 22.7 mm, Luoyang 22.1 mm, Nanyang 21.6 mm, Luohe 20.6 mm, Jiyuan 17.8 mm, Pingdingshan 15.4 mm, Zhumadian 15.3 mm, Shangqiu 10.5 mm. The top three precipitation stations are: Jiayu 115.0 mm in Xingyang City, Tashan 104.6 mm in Xingyang City Luoyang Xindian 99.5mm.
Zhang Ning, chief forecaster of Henan Meteorological Observatory, said that at present, the three summers (summer harvest, summer planting, summer pipe) are busy. The temperature in northern China continues to be high, soil moisture loss accelerates, and drought develops rapidly. The precipitation process has improved the soil moisture shortage in Kaifeng, Zhengzhou, Zhoukou, Shangqiu and other places, and the drought has been alleviated to a certain extent.
In view of the high temperature and drought, the meteorological department of Henan Province continued to strengthen monitoring, early warning and consultation, and gradually carried out forecasting and early warning services to provide meteorological support for drought resistance in the province. Since June 9, the provincial meteorological bureau has continuously issued a high temperature orange warning, a high temperature red warning and a meteorological drought orange warning on June 12, and launched a high temperature three-level emergency response and a drought resistant meteorological service guarantee four level emergency response. The provincial meteorological bureau has sent five working groups to go deep into the front line to inspect and guide meteorological services and weather modification.
Zhang Ning suggested that if the plots have not been sown yet, we can take advantage of the recent favorable rainfall to organize soil moisture harvesting and sowing as soon as possible; The plots with less precipitation and insufficient soil moisture still need to be actively planted with soil moisture; For plots without water irrigation, early maturing varieties can be selected due to the delay of dry sowing date. For plots with partial wet soil, attention should be paid to trenching and soil moisture management to increase the soil aeration in the root zone of crops.
The latest prediction results show that from June 17 to 19, the northern and eastern parts of Henan will still have sunny and hot weather above 35 ℃, but the high temperature range above 37 ℃ will be significantly reduced. On the night of the 16th, there were scattered showers and thunderstorms to the south of the Yellow River. On the 17th, there were showers and thunderstorms in parts of the west. On the 18th, there were scattered showers and thunderstorms in the southeast. The highest temperature in some counties and cities east of the Beijing Guangzhou line will reach 37 to 39 degrees. From 19th to 20th, scattered showers and thunderstorms occurred in the south of the Yellow River, and moderate to heavy rain occurred in some counties and cities in the southeast.
It is predicted that with the strengthening of the Western Pacific subtropical high and its westward extension to the north, the main rain belt in China will also move northward, the precipitation in the south of Henan Province will gradually increase, and the hot weather in the south is expected to be alleviated. With the continuous precipitation and soil moisture infiltration, the moisture content of the province will be further improved.
"Shouting Thirst" in the main grain producing areas of Hebei and Henan Provinces, how to allocate water for summer planting in water conservancy projects
On June 16, a rain fell in the drought stricken Central Plains. Reporters from www.thepaper.cn saw in Luoyang, Henan that the rain started at about 11:00 a.m. and lasted until evening. According to the monitoring of Henan Meteorological Observatory, from 20:00 on June 15 to 17:00 on June 16, light to moderate rain occurred in most parts of the north of the Huaihe River in Henan, and heavy to heavy rain occurred in some counties and cities (districts) between the Yellow River and Huaihe River, local heavy rain.
On June 16, rice seedlings were planted in the paddy field near the Yellow River Canal in Huimeng Town, Mengjin District, Luoyang, Henan Province. The pictures in this article were taken by the surging journalist Diao Fanchao
"The drought was quite serious some time ago. This rain has come down, and the upstream reservoir has increased water release, so there is no problem with water for summer planting." Wang Jiandang, deputy director of the Mengjin District Canal Affairs Center in Luoyang, said.
However, from June 17 to 19, the northern and eastern parts of Henan will still have sunny and hot weather above 35 ℃. In addition, the Central Meteorological Observatory predicted that the high temperature weather in eastern North China, the Yellow River and Huaihe River will develop again from 17th to 19th. The high temperature center will be located in the Beijing Tianjin Hebei area, and the local air temperature can reach 40 degrees again.
At present, it is still the key period of "three summers". On June 15-16, the surging news interviewed in the main grain areas of Hebei and Henan, and learned that the water conservancy departments at all levels are intensifying the monitoring and regulation of water conservancy facilities to ensure the water for summer grain sowing.
Increase discharge of Xiaolangdi Reservoir
At 12:00 on June 15, with the opening of the service gate of No. 2 sediment discharge tunnel, the discharge of the Yellow River Xiaolangdi Water Control Project increased from 1500 cubic meters per second to 1800 cubic meters per second. This is the sixth time since June 6 that the Xiaolangdi Water Control Project has increased the discharge precisely to provide guarantee for drought resistant water supply in the middle and lower reaches of the Yellow River.
Xiaolangdi Water Control Project has increased discharge for six times since June 6
Standing at the control building on the dam crest of Xiaolangdi Water Control Project, the Xiaolangdi Reservoir has operated at low water level in flood season. Zhao Ke, the water regulation commissioner of the Water Regulation Department of the Xiaolangdi Water Control Project Management Center of the Ministry of Water Resources, said in an interview with the surging news that since May, some areas in the middle and lower reaches of the Yellow River have suffered from drought in the cultivated land to be sown and the crops already sown. It is expected that the drought will continue to develop in the near future. According to the requirements of dispatching instructions, the Xiaolangdi Water Control Project has gradually adjusted the discharge flow of the project to 700 cubic meters per second, 750 cubic meters per second, 1000 cubic meters per second, 1200 cubic meters per second, 1500 cubic meters per second, and 1800 cubic meters per second since June 6, so as to ensure drought resistant water supply.
"We strictly implement the drought relief dispatching instructions, scientifically and carefully regulate the reservoir, ensure that the discharge flow and accuracy meet the requirements of the instructions, and meet the needs of drought relief water supply." Zhao Ke said that in order to cope with the drought in recent days, the management center of Xiaolangdi Water Conservancy Complex has strengthened the duty, paying close attention to the development and changes of rain, water and drought, Give full play to the intelligent prediction and rapid response capability of the digital twin Xiaolangdi platform, and use the forward rehearsal and reverse rehearsal results to carry out the dispatching hub more scientifically and effectively, so as to provide support for the drought relief work.
As the Xiaolangdi Water Control Project increases the discharge, the water level of Xixiayuan Reservoir on the Yellow River in Mengjin District, Luoyang City, located at the downstream rises, which provides guarantee for water use in the downstream irrigation area.
On June 16, rice seedlings were planted in the paddy field beside the Yellow River Canal in Huimeng Town, Mengjin District, Luoyang, Henan
The water from Xixiayuan Reservoir flows through Baihe Town and Huimeng Town of Mengjin District through the Yellow River Channel. In Shuanghuai Village, Huimeng Town, the Yellow River Grand Canal passes through the village. The reporter saw that the water in the branch canal can reach the field directly. Some rice fields near the canal have been planted, and some have not been seeded after leveling the land.
"Our land has been leveled. Before planting seedlings, we can immediately water it and plant it," said a villager who had just finished his work in the field. "The water is enough. If it can rain, it will be better. Everyone is looking forward to rain."
According to Wang Jiandang, it is generally necessary to plant summer grain after wheat harvest on June 10. This year, western Henan has been dry, coupled with high temperature, and water consumption has increased significantly. In previous years, the large flow of water in irrigation areas ended on June 20, and this year will last longer. However, he said that as Mengjin District is the first downstream station of Xixiayuan Reservoir, the water source is guaranteed.
Wang Jiandang said that summer planting in Mengjin District involves soybeans, rice and corn. Sowing of soybeans needs to be irrigated before sowing. Sowing has ended at present. The upstream reservoir is still continuously discharging water to ensure the sowing of the remaining rice and corn.
The Haiwei Commission regulates reservoir water supply to ensure the water demand of main grain areas in Hebei
In Handan, Hebei Province, which is close to Henan Province, Zhangfuhe irrigation area is a large (I) type irrigation area, which is the largest irrigation area in Hebei Province.
On June 15, the reporter saw in the Diqiu hub of Zhangfuhe irrigation area that the water from Yuecheng Reservoir was diverted to Linzhang County through the Minyou South Main Canal and the North Main Canal, and the water was transported through seven branch canals, including the North Second Branch Canal, the South Third Branch Canal, the South Fourth Branch Canal, and the South Fifth Branch Canal, for summer irrigation.
Linzhang County, with a cultivated area of 740000 mu, is one of the major grain producing areas in Hebei Province and a national commodity grain production base county. He Zhongmin, a villager in Huangkaihe Village, market town of Zhangcun Village, is a large contractor. This year, he installed sprinkler irrigation water-saving facilities on 1000 mu of land he contracted. Now, from 6:30 a.m. to 6:30 p.m. every day, he sprays corn seedlings just planted in the field for 12 hours without interruption.
"If it doesn't rain, we will have to wait seven or eight days to finish watering the land." He Zhongmin looked at the field and said, "This year there is more water on the ground to quench our thirst! As long as the water in the canal is guaranteed, the output can be guaranteed."
On June 15, the 1000 mu farmland contracted by He Zhongmin, a villager in Huangkaihe Village, Zhangcun Market Town, Linzhang County, Handan, Hebei Province, was under sprinkler irrigation
In order to ensure the normal progress of summer irrigation, in Huangkaihe Village, several members of the drought relief emergency team with armbands on their arms are patrolling near the field. They use manpower and hooks to maintain irrigation works in the irrigation area, such as canals and culverts, and thoroughly clean weeds, sludge and garbage in the canals to ensure that the canals are smooth.
On June 15, Diqiu hub in Zhangfuhe irrigation area increased the flow of water
Gao Shuai, Chief of the Flood and Drought Prevention Section of Linzhang County Water Conservancy Bureau in Handan City, Hebei Province, said in an interview with www.thepaper.cn that since this year, the precipitation of Linzhang County National Station has been 36.6mm, nearly 70% less than the same period in history. Since the beginning of spring (March), the precipitation of the National Station has been 23.4mm, nearly 80% less than the same period in history, and the average temperature of the whole county is 17.7 ℃, 1.4 ℃ higher than the same period in history.
Faced with the continuous high temperature and periodic drought, Linzhang County actively applied for water source scheduling. Up to now, 595000 mu of autumn grain has been sown in the county, and irrigation is being organized in succession.
"At present, 740000 mu of crops in the county are being irrigated in succession. The first round of irrigation has reached 630000 mu, accounting for 85%. It is expected that all irrigation will be completed by June 20," Gao Shuai said.
The Haihe Water Conservancy Commission of the Ministry of Water Resources dispatched the water supply and replenishment work of Yuecheng Reservoir. On the basis of guaranteeing the urban domestic and industrial water in Handan, Hebei, and Anyang, Henan, as well as the agricultural irrigation water in Handan's private canal and Anyang's Zhangnan canal, it optimized the existing water volume, and fully guaranteed the water demand of the dry areas along the Zhanghe River, Weiyun River, Zhangweixin River, and Nanyun River. As of June 15, Yuecheng Reservoir accumulatively replenishes 418 million cubic meters of water to the downstream.
On June 15, the villagers in Cheng'an County, Handan, Hebei Province, were taking water from the Minyou First Main Canal for irrigation
"Now is the key period for summer planting, and the reservoir must ensure the people's livelihood." Cui Xinling, a fourth level researcher of Cheng'an County Water Resources Bureau, told the surging news that since this year, Cheng'an County has been drought and little rain, the temperature is high, and there has been a rare drought in the same period over the years. Especially in recent days, the highest temperature in the county is above 42 ℃, the soil moisture shortage is fast, and the forecast high temperature weather will continue. As of June 15, the light drought area in Cheng'an County was 150000 mu, and the heavy drought area was 2000 mu.
Cui Xinling said that in the east of Minyou No. 1 Trunk Canal at the Zhonglou Temple hub and north of the main trunk canal, the underground water is deep water that cannot be used, and irrigation can only rely on surface water. However, a few days ago, the upstream water consumption was large, and the inflow of water was insufficient. Many villagers had no water to irrigate their land all the time, and corn planting was four or five days late.
In order to ensure the irrigation of the masses, Handan Water Conservancy Bureau has sent letters to Zhangweinan Bureau for five consecutive times since June 6. On June 8, the municipal government also sent the Letter on Ensuring the Agricultural Irrigation Water for the Masses to Zhangweinan Bureau. On June 11, the discharge of Yuecheng Reservoir was increased to 40 m3/s, and on June 13, it was increased to 60 m3/s.
With the increase of water discharge from Yuecheng Reservoir, Cheng'an County has more incoming water, and the remaining 70000-80000 mu of farmland in the county is being irrigated. Cui Xinling said, "As long as more water is released, our summer grain planting in Cheng'an County will be guaranteed."
