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Some time ago, there was a news report that it was in the Yangtze River basin.
It has been more than 50 days, there is no effective rainfall, resulting in many places in the Yangtze River basin have been dry and drought, and some time ago according to the weather in the south, there are different degrees of rainfall in various places in the south, which has also reduced the drought phenomenon in many places, so that the dealer has also been slightly relieved, and according to the latest news, since the summer of this year, the Yangtze River basin, which should have been in the rainy season, has suffered from extreme drought that has not been encountered for many years, according to the report of the meteorological department, The continuous drought in many places in the middle and lower reaches of the Yangtze River in China has exceeded 70 days now, that is, 20 days have been added to the previous 50 days, and there is no effective rainfall, which makes the farmers in the Yangtze River basin have no harvest, and also causes economic losses to the people near the Yangtze River basin. <>
According to statistics, since July this year, the cumulative rainfall in China's Yangtze River basin is less than that of the same period in normal years, and it has entered 5 layers since 1961 with complete data, the lowest in the same period in history, so this drought is also the most serious drought experienced by China from 1961 to the present, and the longest drought, and the middle and lower reaches of the Yangtze River are 4 8 percent less rainfall than the same period in normal years, and the drought in Jiangxi has lasted for more than 70 days.
Precipitation decreased by 7% in three months, according to the meteorological department at 18:00 on the 25th, ** Meteorological Observatory.
The Yellow Alert for Meteorological Drought has been issued continuously, so it appears that it has been almost 40 days since the Yellow Alert was first issued. <>
We all know that between June and August, it is generally the main flood season in China, and we will enter the rainy season in various places, but this year's precipitation in the Yangtze River basin is unusually low, so what is the reason? Is it China's rain belt moving north? According to experts on meteorology, from the perspective of interannual changes, the northern region of China in the past three years.
The rainfall in the rainy season in North China is more than the climatic value, and the direct cause of the excessive precipitation in the north is due to the subtropical high in the western Pacific in the remaining stage.
The northerly is conducive to transporting water vapor from the northwest Pacific to the northern region, while the temperature of the hot Pacific sea surface shows a distribution of warm in the west and cold in winter, and the warm pool in the western Pacific is significantly warmer than usual, so we affect the Kikudiha through the interaction of sea and air, and the circulation and Walker circulation make the Pacific subtropical high stronger and northerly, so from these phenomena, we conclude that the reason for such a severe drought this year may be that the northward movement of China's rain belt has led to more rainy seasons in the north and drought in the south. <>
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It should not be, mainly due to the impact of extreme weather this year, **The impact of extreme weather such as typhoons has led to the migration of climate, and there has been a different phenomenon from the past, which will lead to the occurrence of such extreme weather.
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The Yangtze River basin, which should be in the rainy season, has suffered from extreme drought not seen in many years, and according to the statistics of the meteorological department, many places in the middle and lower reaches of the Yangtze River have been in drought for more than 70 days. The southern region continues to experience high temperatures and little rainfall. The rain band moved northward.
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Yes, there is obviously more education in the north, especially in Beijing, Tianjin, and Hebei, where there is a lot of precipitation.
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In 2022, the drought time in the Yangtze River basin has also exceeded 50 days, and the reason for this situation is also because the local water vapor transport is relatively weak, and the air flow in summer is also abnormal, which is stronger than before, and the rainfall in summer has also decreased significantly, and many areas have continued high temperatures, so it will lead to drought in the Yangtze River basin. The water levels of Dongting Lake and Poyang Lake have also reached record lows. In order to cope with the drought, the local government has also taken relevant measures, and in order to ensure the safety of the people's drinking water, special dispatching actions have also been adopted to meet the irrigation needs of crops near the Yangtze River.
In July, there was a phenomenon of high temperature and little rain in most areas, and the Yangtze River basin was also extremely serious, with less rainfall than in previous years, and the reservoir also had insufficient water storage. In terms of water resources, the southern region is relatively abundant, and the rainfall is mainly concentrated from April to September. The middle and lower reaches of the Yangtze River have been affected by high temperatures, which have also caused the water level to continue to drop.
It is also prone to summer droughts, which were severe in 2013 and 2019. <>
The global climate is also warming, and La NiƱa events have also affected many regions, and lakes and rivers have also been affected to a certain extent, in an embarrassing situation, in order to ensure people's lives. Drinking water facilities are also used downstream, and water resources can be diverted to where they are needed under accurate calculations, and reasonable plans can be formulated in a scientific way to fight drought. <>
In July and August, precipitation in the Yangtze River basin also decreased significantly, with the average precipitation in July being around 141 mm, but in 2022 the precipitation was 48% less, and even some areas did not reach 10 mm in August. Drought has also had a serious impact on people's lives, and there are many reasons for this.
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This is because the weather is very hot this year, and the rainfall is relatively low, so the Yangtze River is dry.
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This is because this year's climate is very abnormal, the weather is very hot, and the hot time is very long, so there will be a drought.
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The main reason for the drought is that the precipitation in the early stage is reduced, and the high temperature weather lasts for a particularly long time, which leads to drought in the middle and lower reaches of the Yangtze River.
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The Yangtze River basin has been dry for more than 70 days, China's rain belt has not moved north, mainly because the southern region is close to the sea, so relatively speaking, the water cycle is more obvious, followed by the northern region belongs to the high latitude area, under normal circumstances, it is high temperature and rainy in summer, and then the southern part of China is rainy in spring or summer, and the other is that China's fresh water is mainly concentrated in the south, so the south will not be dry under normal circumstances. In addition, this year's extreme weather has caused drought in the Yangtze River basin. It is necessary to elaborate and analyze from the following five aspects: the drought has been persisting in many places in the Yangtze River basin for more than 70 days, and the rain belt in China has not moved northward.
First, the southern region is close to the sea, so relatively speaking, the water cycle is more obvious
First of all, the southern region is close to the sea, so relatively speaking, the water cycle is more obvious, for the southern region of China, because of the advantage of being close to the sea, the water cycle is very strong.
2. The northern region belongs to the high-latitude region, and under normal circumstances, it is hot and rainy in summer
The second is that the northern region belongs to the high latitude area, which is usually hot and rainy in summer, so that the northern region is relatively dry in spring, autumn or winter
3. It is rainy in southern China in spring or summer
In addition, it is rainy in the spring and summer in southern China, so that there is enough rain in southern China to irrigate the farmland.
Fourth, China's fresh water is mainly concentrated in the south, so there is generally no drought in the south
In addition, China's fresh water is mainly concentrated in the south, so there is generally no drought in the south, mainly because there are abundant lakes in the south.
Fifth, extreme weather is why drought occurs in the Yangtze River basin
In addition, extreme weather is the reason for the drought in the Yangtze River Basin, which will make the drought in the Yangtze River Basin more serious.
Precautions that farmers in the Yangtze River basin should do:
Necessary measures should be taken to irrigate the corresponding farmland areas.
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It's already moving north. Judging from the current weather situation, the precipitation system has lifted northward, and the expected rain will come soon.
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No, this is caused by abnormal weather, and there are really a lot of extreme weather in recent years for various reasons, but the overall change in the weather will not be easily changed, and the cycle of the whole world has a certain law.
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It has not moved north, because the rainfall in the north is not particularly high, and the north is currently relatively arid.
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It is true that it has moved north, and the impact on the south is also very serious, and the prolonged drought has not only caused a very serious impact on the current living environment, but also has a very serious impact on the ecological damage.
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Yes, the rain belt in China has now shifted northward, and the rainfall in the north has obviously increased significantly.
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Probably not, this year, the rainfall in the whole region is very small, and the north has also encountered dry weather and high temperatures.
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Since this summer, in the southern part of our country, there has been continuous high temperature and little rain. And we all know that the Yangtze River is located in the rainy season. This year, however, the Yangtze River has suffered an extreme drought that has not been seen in many years.
As a result, the waters of the Yangtze River have dropped significantly. It has been more than 50 days since the Yangtze River was drought, so is this because the rain belt has moved north? <>
Since July this year, the rainfall of our Yangtze River basin mechanism has been less than 5 percent in the same period as usual, and in the middle and lower reaches of the Yangtze River for a longer time, it has been less than 4 8 percent in the same period, and in Hunan and Jiangxi, the number of ineffective rainfall days has reached 50 days, because the high temperature and lack of rain have affected the water level in the basins and lakes of the Yangtze River in China, because the drought in the Yangtze River basin has developed rapidly, and many cultivated fields in the Yangtze River basin have been affected by drought at the peak period, which has also led to the difficulty of drinking water for the people in the Yangtze River basin. We all know that June and August every year is the main flood season in our country, and all parts of our country have begun to enter the rainy season, but the precipitation in the Yangtze River basin this year is very small. The drought in the Yangtze River basin is in stark contrast to the extreme frequency of rainfall in the north this year. <>
And in Gansu, Shanxi, Shaanxi and other regions have 100 mm to 200 mm of rainfall, before the proceedings of the National Academy of Sciences, once published a study pointed out that the background of global warming will lead to the northward movement of the East Asian summer wind and rain belt, and in recent years, due to the high precipitation in the north, scientists and the public are concerned about the northward movement of the East Asian summer wind and rain belt, in recent years, the characteristics of more precipitation in the north may be the result of the comprehensive impact of multiple time scale systems, One of the direct causes of the excessive precipitation in the north is the northward movement of the western Pacific subtropical high, which is conducive to transporting water vapor from the northwest Pacific to the north. Therefore, in the context of global warming, the East Asian summer monsoon system shows complex characteristics, and the impact on the rain belt in our country is also complex, and the future climate evolution will be affected by the combined effect of natural variability and human activities, so this is the reason for the northward shift of the rain belt. <>
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The drought in the Yangtze River may be related to the extreme and abnormal climate, after all, there are too many typhoons in Japan, and the global air pressure has changed to a certain extent.
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Affected by high temperature and lack of rainfall, many rivers and lakes in the Yangtze River basin have dried up seriously. At one time, 66.32 million mu of cultivated land was affected by drought, and 10,000 people had difficulty drinking water due to drought, and the evaporation of the surface was further increased due to high temperatures, resulting in further development of drought.
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In 2022, the drought time in the Yangtze River basin has also exceeded 50 days, and the reason for this situation is also because the local water vapor transport is relatively weak, and the air flow in the summer is also abnormal, which is stronger and more abundant than before, and the rainfall in summer has also decreased significantly.
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I don't think the rainfall really moved north, mainly due to extreme weather, which led to severe drought conditions in the Yangtze River basin.
With the advent of the drought period, the middle and lower reaches of the Yangtze River are the most severely affected. Because the river basin around the Yangtze River has even been cut off. The ecological environment of the surrounding areas has suffered serious damage, the most important of which is that it has seriously affected the lives of the people in the surrounding areas, and at the same time has also caused a certain impact on agricultural production.
Therefore, all regions should do a good job in drought management.
Since the beginning of summer this year, extreme high temperature and drought have generally occurred in the middle and lower reaches of the Yangtze River in China. In addition, the amount of rainfall in this year's summer is much lower than in previous years. It is simply not comparable to the same period, so the drought situation in the Yangtze River basin is very serious.
So far, the drought situation in the Yangtze River basin has exceeded nearly 50 days. And in the coming time, the drought in the Yangtze River basin will continue to worsen. <>
Many netizens speculated whether China's rainfall belt had moved to the north? I think it's completely impossible, because the dividing line of the rainfall belt is limited by climatic as well as geographical factors. Of course, neither of these aspects has been greatly affected, and this year there will be heavy rainfall in the northern waters.
It's all due to extreme weather, and the same is true of the hot weather in the south. <>
Therefore, for the Yangtze River Basin, the current primary work must do a good job in drought relief and disaster relief. I think it is possible to concentrate all the water resources in the local area and transport them in batches. The water shortage in each region is counted accordingly, and then the water conservancy department adopts the method of demand to deliver it.
To a certain extent, this avoids excessive waste of water and thus evaporation. <>
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