What are the characteristics of the upper reaches of the Yellow River, and what are the characterist

Characteristics of the Yellow River: 1. Less water and more sand; 2. The spatial and temporal distribution of water and sand is uneven; 3. Hanging river on the ground; 4. Frequent flood disasters.

The Yellow River is the mother river of China, with a long history and far-reaching influence. So what are the characteristics of the Yellow River? Let's give you a specific introduction.

Details: Less water and more sand: The average flow of the Yellow River is only 1 7 of the Yangtze River, and the soil erosion of the Yellow River is serious, and a large amount of river sand flows into the Yellow River every year, resulting in less water and more sand in the Yellow River.

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The water and sediment of the Yellow River are mainly concentrated in Lanzhou, while the sand is mainly distributed in the upper reaches of the Jing River, Beiluo River and Wei River. In addition, during the flood season, river sand will be concentrated, which is prone to flooding, which brings great difficulty to development.

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Above-ground hanging river: Due to serious soil erosion, the Yellow River has accumulated sediment all year round, forming an above-ground hanging river, and the difference between it and the downstream embankment can reach 5 6 meters, or even higher.

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Frequent floods: The Yellow River has been prone to flooding since ancient times, which has a great impact on people's property, planting and the environment.

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The Yellow River originates from the northern foot of Bayankala Mountain on the Qinghai-Tibet Plateau in China, and is the largest river in northern China, with the Yangtze River in length, and is the second largest river in China.

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The Yellow River has four characteristics: first, less water and more sand; 2. Uneven distribution of water and sand; 3. The river hangs on the ground, and the situation is precarious; Fourth, flood disasters are frequent.

The average annual natural flow of the Yellow River is the fourth of the seven major rivers in China and the second longest river in China. Because the middle section of the Yellow River flows through the Loess Plateau.

As a result, the river carries a large amount of sediment. The Yellow River carries about 1.6 billion tons of sediment every year, of which about 1.2 billion tons flow into the ocean, and the remaining 400 million tons are deposited in the lower reaches of the Yellow River, from Taohuayu to the estuary. Due to the accumulation of large amounts of sediment, the course of the Yellow River has been raised every year, and the riverbed of the Yellow River is now 3 to 5 meters above the ground.

1. The Yellow River, which has a large twist and turn, forms a "several" shape in the upper reaches, which is the only rectangular river in the world, and its unique curvilinear beauty is the first of the world's major rivers. About 500,000 years ago, there were no big rivers in the places where the Yellow River flowed, just lakes and small rivers that were densely distributed like stars.

2. The Yellow River is not only famous for its "hanging river on the ground", but also the Yellow River water is known as "a bowl of water, half a bowl of mud", its maximum annual sediment transport can reach 100 million tons, and the average annual sediment transport can reach 1.6 billion tons. Of the 1.6 billion tonnes of sediment, 400 million tonnes are deposited in rivers and 1.2 billion tonnes are carried to estuary.

3. The upstream drop is large, the water energy is abundant, and the flood is flooded; The sediment content in the middle reaches is large; In the lower reaches, there are many rivers and floods.

The main characteristics of the Yellow River are a lot of sediment, and the soil erosion in the upper and middle reaches of the Yellow River is very serious, resulting in serious siltation of the lower reaches of the river, and the riverbed is raised by about 10 centimeters per year on average. The average sediment transport volume of the Sanmenxia Station of the Yellow River is about 1.6 billion tons for many years, and the average sediment volume is 35 kilograms per cubic meter, ranking first among the major rivers and unique among the world's rivers.

Yellow River: The middle and upper reaches of the Yellow River are mainly mountainous, and the middle and lower reaches are mainly plains and hills. Because the middle section of the river flows through the Loess Plateau region of China, it carries a large amount of sediment, so it is also known as the river with the most sediment content in the world.

But in Chinese history, the diversion of the lower reaches of the Yellow River has had a huge impact on human civilization.

The Yellow River is the main birthplace of Chinese civilization, and the Chinese call it the "Mother River". Every year, 1.6 billion tons of sediment are carried, of which 1.2 billion tons flow into the sea, and the remaining 400 million tons remain in the lower reaches of the Yellow River for many years, forming an alluvial plain that is conducive to cultivation.