Experts Analyze the Influence of Drought on the Grain Production in the Middle and Lower Reaches of the Yangtze River Xinhuanet Beijing On May 26 (Reporter Zhang Xinxin), the land of abundant fish and rice, which is supposed to have plenty of rain, is experiencing a rare drought in history. How long will the drought last? Does it have an impact on food production? The reporter asked meteorologists and agricultural experts to interpret this.
According to the China Meteorological Administration climate monitoring, from January 1 to May 23, most of the precipitation in the middle and lower reaches of the Yangtze River was 30% to 80% less than normal year-on-year, and average precipitation in Anhui, Jiangsu, Hubei, Hunan, Jiangxi, Zhejiang, and Shanghai. The volume was at least the same period since 1954.
“The reason why the current water level in the Yangtze River is low is mainly due to the lack of rain in the Yangtze River basin some time ago.†Zhou Bin, chief expert of the National Climate Center, said that since the beginning of this year, the subtropical high over the Pacific Northwest was weaker than the historical period, and its position was eastward, making it difficult to transport water vapor. To inland areas is not conducive to the formation of precipitation in the cold and warm air flow in the south of the Yangtze River.
The Central Meteorological Observatory predicts that, starting from the 26th, the mid-lower reaches of the Yangtze River will be mainly sunny and hot weather. From the 27th to the 29th, some areas in the middle and lower reaches of the Yangtze River will experience sunny or hot weather with daily maximum temperatures of 34-36 degrees Celsius, and drought conditions in some areas will continue or develop.
The reporter learned from the Department of Crop Production of the Ministry of Agriculture that the grain areas and production in the three provinces of Hubei, Hunan, and Jiangxi accounted for 11% and 13% of the country respectively. The area and total production of early rice and double-season rice accounted for 54.3% of the country's total, respectively, and 55.7%. .
"Serious drought conditions in some areas will have adverse effects on the normal growth and development of early crops, rice, and mid-season rice seedlings in early rice, cotton, and vegetables," said Song Yingbo, a senior researcher at the China Meteorological Administration's Center for Agricultural Meteorology.
The latest agricultural dispatch of the Ministry of Agriculture shows that as of May 21, the drought-hit areas of crops in Hubei, Hunan, and Jiangxi provinces totaled 32.04 million mu, of which 9.58 million mu were affected by early rice, and more than 9.7 million mu were deficient in paddy fields. Drought conditions are mainly concentrated in most of Hubei Province, Hunan Dongting Lake District and the hilly areas in western Hunan, Jiangxi Poyang Lake District.
Fortunately, the previous precipitation effectively relieved the drought in some areas. Song Yingbo told the reporter that since May 21st, there have been significant rainfall processes in the middle and lower reaches of the Yangtze River. The heavy rainfall area basically coincides with the heavy drought area, which is very beneficial to the growth and development of early rice and the cultivation of middle rice.
As of May 23, crops affected by drought in three provinces of Hubei, Hunan, and Jiangxi accounted for 760 million mu, a decrease of 24.44 million mu over the 21st; the water shortage of the paddy field was 6.9 million mu, which was 2.8 million mu less than that of the 21st. Among them, the drought-reduced area of ​​crops in Hubei fell from 19.59 million mus before rainfall to 721 million mus; the drought-reduced area of ​​crops in Jiangxi fell from 3 million mus before rainfall to 390,000 mus; the drought in crops of 9.45 million mus in Hunan was basically relieved; The dry conditions of crops and early rice have basically been lifted.
In the face of severe drought in some areas, all relevant departments and regions have taken active actions and taken measures to fight drought and ensure production.
The Ministry of Agriculture dispatched four teams of leaders led by ministries and divisions and bureaus to in-depth investigations into drought conditions in drought-stricken areas, carried out drought inspections, guided the implementation of scientific anti-drought measures, worked hard to minimize the impact of disasters, and ensured spring planting. The area is stable. At present, the planting of early rice in the three provinces has ended, an increase of more than 1.5 million mu over the previous year.
Meteorological departments at all levels took advantage of the favorable weather conditions in the previous rainfall process to carry out large-scale air and ground rainfall enhancement operations. The China Meteorological Administration stated that it will closely monitor future weather changes and seize all favorable conditions to fully implement weather modification operations.
The national defense company has substantially increased the discharge flow of the Three Gorges Reservoir, alleviating the pressure of urban and rural water supply, irrigation and water diversion and navigation, and safeguarding drought-resistant water and shipping safety in the middle and lower reaches of the Yangtze River. Affected provinces mobilize their strength and resources and invest in disaster prevention.
Hubei Province initiated the three-tier response to natural disasters and sent several working groups to investigate drought conditions in Jingzhou and Huanggang. In addition, drought prevention input was also increased in Jiangxi. Up till now, a total of RMB212 million has been invested in drought relief. Mobile dredger equipment 410,000 sets (sets), temporarily solve the difficulty of drinking water for 112,300 people.
According to the China Meteorological Administration climate monitoring, from January 1 to May 23, most of the precipitation in the middle and lower reaches of the Yangtze River was 30% to 80% less than normal year-on-year, and average precipitation in Anhui, Jiangsu, Hubei, Hunan, Jiangxi, Zhejiang, and Shanghai. The volume was at least the same period since 1954.
“The reason why the current water level in the Yangtze River is low is mainly due to the lack of rain in the Yangtze River basin some time ago.†Zhou Bin, chief expert of the National Climate Center, said that since the beginning of this year, the subtropical high over the Pacific Northwest was weaker than the historical period, and its position was eastward, making it difficult to transport water vapor. To inland areas is not conducive to the formation of precipitation in the cold and warm air flow in the south of the Yangtze River.
The Central Meteorological Observatory predicts that, starting from the 26th, the mid-lower reaches of the Yangtze River will be mainly sunny and hot weather. From the 27th to the 29th, some areas in the middle and lower reaches of the Yangtze River will experience sunny or hot weather with daily maximum temperatures of 34-36 degrees Celsius, and drought conditions in some areas will continue or develop.
The reporter learned from the Department of Crop Production of the Ministry of Agriculture that the grain areas and production in the three provinces of Hubei, Hunan, and Jiangxi accounted for 11% and 13% of the country respectively. The area and total production of early rice and double-season rice accounted for 54.3% of the country's total, respectively, and 55.7%. .
"Serious drought conditions in some areas will have adverse effects on the normal growth and development of early crops, rice, and mid-season rice seedlings in early rice, cotton, and vegetables," said Song Yingbo, a senior researcher at the China Meteorological Administration's Center for Agricultural Meteorology.
The latest agricultural dispatch of the Ministry of Agriculture shows that as of May 21, the drought-hit areas of crops in Hubei, Hunan, and Jiangxi provinces totaled 32.04 million mu, of which 9.58 million mu were affected by early rice, and more than 9.7 million mu were deficient in paddy fields. Drought conditions are mainly concentrated in most of Hubei Province, Hunan Dongting Lake District and the hilly areas in western Hunan, Jiangxi Poyang Lake District.
Fortunately, the previous precipitation effectively relieved the drought in some areas. Song Yingbo told the reporter that since May 21st, there have been significant rainfall processes in the middle and lower reaches of the Yangtze River. The heavy rainfall area basically coincides with the heavy drought area, which is very beneficial to the growth and development of early rice and the cultivation of middle rice.
As of May 23, crops affected by drought in three provinces of Hubei, Hunan, and Jiangxi accounted for 760 million mu, a decrease of 24.44 million mu over the 21st; the water shortage of the paddy field was 6.9 million mu, which was 2.8 million mu less than that of the 21st. Among them, the drought-reduced area of ​​crops in Hubei fell from 19.59 million mus before rainfall to 721 million mus; the drought-reduced area of ​​crops in Jiangxi fell from 3 million mus before rainfall to 390,000 mus; the drought in crops of 9.45 million mus in Hunan was basically relieved; The dry conditions of crops and early rice have basically been lifted.
In the face of severe drought in some areas, all relevant departments and regions have taken active actions and taken measures to fight drought and ensure production.
The Ministry of Agriculture dispatched four teams of leaders led by ministries and divisions and bureaus to in-depth investigations into drought conditions in drought-stricken areas, carried out drought inspections, guided the implementation of scientific anti-drought measures, worked hard to minimize the impact of disasters, and ensured spring planting. The area is stable. At present, the planting of early rice in the three provinces has ended, an increase of more than 1.5 million mu over the previous year.
Meteorological departments at all levels took advantage of the favorable weather conditions in the previous rainfall process to carry out large-scale air and ground rainfall enhancement operations. The China Meteorological Administration stated that it will closely monitor future weather changes and seize all favorable conditions to fully implement weather modification operations.
The national defense company has substantially increased the discharge flow of the Three Gorges Reservoir, alleviating the pressure of urban and rural water supply, irrigation and water diversion and navigation, and safeguarding drought-resistant water and shipping safety in the middle and lower reaches of the Yangtze River. Affected provinces mobilize their strength and resources and invest in disaster prevention.
Hubei Province initiated the three-tier response to natural disasters and sent several working groups to investigate drought conditions in Jingzhou and Huanggang. In addition, drought prevention input was also increased in Jiangxi. Up till now, a total of RMB212 million has been invested in drought relief. Mobile dredger equipment 410,000 sets (sets), temporarily solve the difficulty of drinking water for 112,300 people.
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