From the perspective of sustainable development, how can the Yangtze River basin reduce the harm of

The drought in the Yangtze River basin is mainly characterized by early occurrence, large drought area, long duration, and wide range of drought. In early June 2022, the Yangtze River basin already experienced low precipitation, and the water level in the middle and lower reaches of the Yangtze River is also declining, which is significantly lower than in the past. Not only has the precipitation in the Yangtze River basin been seriously reduced, but the temperature in the Yangtze River basin is also very high, with some areas lasting high temperatures for more than 15 days, while in the middle and lower reaches of the Yangtze River, the high temperature weather has exceeded 25 days.

The drought in 2022 was exceptional, not only covering the upper reaches of the Yangtze River Basin, but also affecting the middle and lower reaches of the Yangtze River Basin, resulting in water shortages in many areas. The drought situation is still ongoing and will affect all aspects of agriculture and the ecological environment, as well as the daily water use of people and livestock. According to statistics on August 11, 2022, the area covered by the drought has reached 644,670 hectares, resulting in the water supply of 830,000 people being affected to varying degrees.

Agricultural production in many regions such as Sichuan and Chongqing has inevitably been affected, and crops have reached a period of being very sensitive to moisture and temperature, but in the case of little rain, it will lead to a significant decrease in seed setting rate, which will lead to a decrease in the yield of the next season. Crops in many areas of the middle and lower reaches of the Yangtze River are also in the maturity stage, so high temperatures can lead to natural growth of crops. Precipitation in the Yangtze River basin is relatively low, which also leads to the depletion of water sources in small reservoirs, resulting in lower water supply for people in remote areas.

Sichuan Province is the most seriously affected, about 10,000 people have been affected by the water supply, at the same time livestock also have drinking water difficulties, with the continuous development of the times, China's water conservancy projects have also been well constructed, so the impact of the current drought is still under control. When rivers dry up, they lead to the destruction of ecosystems, which can have very serious consequences.

Mid-to-late August is a critical period for the formation of autumn grain and autumn crop yield in the middle and lower reaches of the Yangtze River, and it is also a high-temperature sensitive period with large water demand. Continuous high temperature and heat damage combined with drought led to the decrease of seed setting rate and grain weight of medium rice, corn, soybean and other crops, the increase of cotton bud boll shedding, the decrease of boll formation and premature senescence, which affected the yield.

This will lead to a local water and domestic water crisis, and water diversion and support from other regions will be needed.

They say the reservoir has blocked all the water.

This is the law of nature, don't scribble.

Domestic physical cooling is needed, that is, a large number of outdoor display screens, a large number of outdoor LED lights, if not done, next year's high temperature and high heat weather will be more serious.

The drought in the Yangtze River basin is the most severe since 1961, and the meteorological drought in the Yangtze River basin has brought the following impacts to the local area.

The Yangtze River region has experienced its biggest drought since 1961. Sichuan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, 6 provinces, 12.32 million mu of cultivated land affected by drought, 830,000 people, 160,000 head of large livestock affected by drought.

The average annual precipitation of major cities on the Yangtze River is lower than the average by 50%, and the average precipitation in Nanchang, Fuling and Wulong has decreased by more than 80%, and the average precipitation in previous years is more than 200 mm, while this year it is only 30 40 mm. In addition to a significant reduction in rainfall, the persistence of high-intensity high temperatures has led to a rapid development of the arid climate.

At this time, the middle and lower reaches of the Yangtze River are the critical period for the formation of autumn grain production and autumn harvest crop yield, and it is also the most sensitive period to high temperatures, and crops need a lot of water. The dual effects of continuous high temperature and heat damage and drought have reduced the pod setting rate and grain weight of rice, corn, soybean and other crops, and increased the bud boll shedding of cotton, resulting in a decrease in boll formation and premature senescence, thereby reducing yield.

At present, most of the first-season rice in Sichuan, Chongqing and other southwest regions have begun to fill grain, some have entered the milk maturity stage, maturity stage, a few in the heading, flowering stage, it is the most sensitive to temperature, water response time, continuous high temperature and drought will make the rice seed setting rate and 1000-grain weight decrease, the yield of rice has an adverse effect.

Water levels in the main stream of the Yangtze River and in Dongting and Poyang lakes are at historically low levels, and small reservoirs in some places are experiencing large shortages of water storage.

In some areas that rely on hydroelectric power, power is scarce. Eighty percent of the country's electricity comes from hydroelectric power, and this year's rare heat and drought has caused a serious shortage of water in all major river basins, reducing the province's hydropower capacity by 50 percent. A series of orderly power restrictions have been adopted in places such as Dazhou, thereby easing the pressure on power supply.

The impact of meteorological drought in the Yangtze River basin on the local area: high temperature and drought have had a significant impact on the production and life of local people. The area of extreme drought has reached 10,000 square kilometers.

The drought in the Yangtze River basin is very serious, and it also has a very serious impact on the local area.

The water level in the Yangtze River basin is lower than that in the same period, and the farmland is dry, and the output of crops and aquatic products in the Yangtze River basin will be reduced.

1. The causes of soil erosion in the Yangtze River basin are:Indiscriminate deforestation in the upper reaches, land reclamation in the middle reaches, and destruction of the ecological environment.

2. The reasons for calling the Yangtze River basin the second Yellow River in China are:

In recent years, the vegetation in the Yangtze River basin has been seriously damaged, causing a large amount of soil erosion, increasing the sediment content of the Yangtze River, depositing sediment, and raising the riverbed.

3. Schematic diagram of the Yangtze River Basin:

1. Upstream soil erosion. As a result, there is less and less soil upstream and less forest area.

2. Flood and waterlogging disasters in the middle and lower reaches of the plain. It poses a threat to the lives and safety of people in the middle and lower reaches.

3. Biodiversity faces serious challenges. Biodiversity is declining, and some organisms are even disappearing or endangered.

The Yangtze River Basin refers to the vast area through which the main stream and tributaries of the Yangtze River flow, spanning the three major economic zones of eastern, central and western China, with a total of 19 provinces, municipalities and autonomous regions, and is the third largest river basin in the world, with a total area of 1.8 million square kilometers, accounting for China's land area, and rich natural resources in the basin. Many lakes and rivers eventually flow into the Yangtze River.

The total length of the Yangtze River is customarily called 6,397 kilometers. The main stream of the Yangtze River, Yichang, is the upper reaches, with a length of 4,504 kilometers and a basin area of 1 million square kilometers, of which the Zhimen River basin is called the Jinsha River basin from Zhimen to Yibin, which is 3,464 kilometers long. The section of the river from Yibin to Yichang is called the Chuanjiang River, which is 1040 kilometers long.

Yichang to Hukou is the middle reach, with a length of 955 kilometers and a basin area of 680,000 square kilometers.

The Yangtze River is the largest river in China and Asia and the third largest in the world. It originates in the Tanggula Mountains in Qinghai Province and eventually joins the East China Sea near Chongming Island in Shanghai. The road is magnificent, with many large and small lakes and main tributaries"Far like a silver vine hanging fruit melon, close to a fierce horse roaring in the sky.

It is majestic and magnificent for 7,000 miles, raising many families in the Yangtze River Basin.

Summary. Qinqin is happy to answer for you, the main natural disasters in the middle and lower reaches of the Yangtze River are floods and droughts. In order to embody the sustainable development concept of harmony between man and water, the following measures can be taken:

1.Establish a digital monitoring and early warning system to monitor and analyze climate change, precipitation, water level and other information in a timely and accurate manner, give early warning of possible floods or droughts, and take appropriate emergency measures and preventive measures. 2.

Strengthen river basin management, coordinate the balance between supply and demand of upstream and downstream water resources, formulate scientific and rational plans for the use and protection of water resources, and reduce floods and dependence on drought through measures such as ecological restoration, land consolidation and agricultural structural adjustment. 3.Promote the construction of environment-friendly cities, improve the quality of the water environment, strengthen water pollution control, water resources protection, water ecological restoration, etc., and avoid the impact and damage of water pollution on the ecological environment.

4.Improve the public's ability to help themselves, carry out relevant emergency rescue drills and knowledge popularization, and improve residents' ability to self-prevent and respond to floods and droughts. These measures can effectively reduce the probability of floods and droughts, and provide an effective guarantee for the harmonious and sustainable development of people and water in the middle and lower reaches of the Yangtze River.

The main natural disasters in the middle and lower reaches of the Yangtze River are () In order to reflect the concept of sustainable development of harmony between man and water, what can be taken.

That's the topic above.

Qinqin is happy to answer for you, the main natural disasters in the middle and lower reaches of the Yangtze River are floods and droughts. In order to embody the sustainable development concept of harmony between man and water, the following measures can be taken:1

Establish a digital monitoring and early warning system to monitor and analyze climate change, precipitation, water level and other information in a timely and accurate manner, give early warning of possible floods or droughts, and take appropriate emergency measures and preventive measures. 2.Strengthen river basin management, coordinate the balance between supply and demand of upstream and downstream water resources, formulate scientific and rational plans for the use and protection of water resources, and reduce floods and dependence on drought through measures such as ecological restoration, land consolidation and agricultural structural adjustment.

3.Promote the construction of environment-friendly cities, improve the quality of the water environment, strengthen water pollution control, water resources protection, water ecological restoration, etc., and avoid the impact and damage of water pollution on the ecological environment. 4.

Improve the public's ability to help themselves, carry out relevant emergency rescue drills and knowledge popularization, and improve residents' ability to self-prevent and respond to floods and droughts. These measures can effectively reduce the probability of floods and droughts, and provide an effective guarantee for the harmonious and sustainable development of people and water in the middle and lower reaches of the Yangtze River.

Every year in July and August, it was originally the flood season in the Yangtze River, but this year it is rare to encounter a continuous drought, which is theoretically an unpreventable meteorological disaster, and it is often difficult to fundamentally solve the problem by relying only on manual intervention. Of course, if the drought is not alleviated for a long time, it will inevitably cause irreparable losses to the local production and living order, so the water conservancy department has taken relevant measures such as sending a working group to the drought-stricken area to guide the drought-fighting work and scientifically dispatching water conservancy projects, which is undoubtedly of great help to the follow-up drought control.

First, the working group dispatched by the Ministry of Water Resources will assist in guiding the work after rushing to the arid areas, and the main idea is to ensure that the relevant measures and plans are implemented under the premise of one reservoir and one policy for each village; At the same time, scientific scheduling of various water conservancy projects in the Yangtze River basin should be carried out, and the water needs of livestock drinking water and crop irrigation should be taken into account on the basis of ensuring the safety of drinking water for the masses. On the surface, the work of the working group is more theoretical than practical, but without these guiding measures, it will be difficult for the local drought control work to achieve the desired results in a short period of time.

Second, the Three Gorges Reservoir will intensify its efforts to discharge and replenish water, and it is initially estimated that 5.3 billion cubic meters of water will enter the downstream rivers one after another, which is very important for the drought control work in the middle and lower reaches of the Yangtze River Basin. With the gradual increase in the discharge of the Three Gorges Reservoir, the degree of water shortage in the middle and lower reaches of the Yangtze River will change in the next few days, thus creating conditions for drought control.

Finally, water conservancy projects other than the Three Gorges, such as cascade reservoirs in the lower reaches of the Jinsha River, are also replenished downstream through scientific scheduling. At the same time, give full play to the advantages of the continuation of the construction and modernization of the project, will also play a pivotal role in the control of drought losses, when the specific measures mentioned above are carried out in an orderly manner and have achieved remarkable results, it is believed that the drought in the Yangtze River basin will avoid further deterioration, but it is still necessary to scientifically assess the future meteorological conditions according to the meteorological conditions, whether it is conducive to artificial rainfall and other work, in order to lay a solid foundation for overcoming the drought.

It is recommended that the relevant departments should strengthen the prevention and control and management of this aspect to avoid causing more serious impacts, and the relevant departments have also taken various measures such as artificial rainfall to ensure that the local high temperature weather is effectively alleviated.

In view of the possible drought in Kichaiji, we planned in advance the storage and dispatch of water from 51 major reservoirs, including the Three Gorges and the Danjiang Estuary in the middle and upper reaches of the Changzhaoxi River, to reserve water sources for drought fighting, and to replenish water for the downstream in a timely manner, so as to reduce the impact and losses of drought.

On August 15, the Ministry of Water Resources said that the drought situation in the Yangtze River basin may continue to develop, and what measures have been taken to destroy it? It is necessary to store water to ensure that the water source is sufficient, and to ensure the use of water for residents and firefighting.

For the flood disaster in the entire Yangtze River basin, the construction of ecological barriers in the upstream area is of great significance. At present, the degradation of the ecological barrier, desertification of the land, and rodent infestation are seriously threatening the ecological barrier in the upper reaches of the Yangtze River. As soon as it rains, the land is a thousand ravines, and then it is desertified.

According to Sichuan statistics, the annual soil erosion caused by the above three items reaches 100 million tons, which is 41 percent of the soil erosion in Sichuan ethnic areasThe destruction of the upstream ecology will inevitably lead to the acceleration of barrier degradation, which in turn will exacerbate soil erosion in the upper reaches of the Yangtze River, and floods will follow.

Therefore, in the upper reaches of the Yangtze River, we should vigorously implement afforestation and grass planting and sand fixation, and build an effective ecological barrier, which can prevent desertification of land, curb soil erosion from the source, and reduce flooding disasters in the entire river basin. 7, one of the reasons for the occurrence of flood disasters is that a large amount of sediment in the river leads to the rise of the average water level of the river, and the upper reaches of the Yangtze River are the main sediment in the Yangtze River, planting forests and grasses in the upper reaches helps to reduce the upstream soil erosion, so that the amount of sediment entering the river is reduced, and then the sediment accumulation rate in the river is slowed down, and the cleaning of sediment on the barrage makes the average water level of the river decrease, and the pressure of the river on the embankment is reduced, so that the frequency of flood disasters is reduced. 1,