The Yellow River has always been turbid. Where did the sediment in the river come from?

The Yellow River flows from west to east to the sea, majestic. For thousands of years, countless people with lofty ideals have recited poems and composed poems for it. Among them, the most orally transmitted poem is written by Li Bai, a famous poet of the Tang Dynasty: "The water of the Yellow River comes up from the sky and rushes to the sea never to return." It is praised that the water of the Yellow River rushes from the sky and never looks back towards the ocean.

When people mention the Yellow River, they think of it as our "mother river", the "cradle" of Chinese civilization, and the "source of life" that the descendants of Yan and Huang have relied on for their survival for generations to come. In recent years, the Yellow River has become a tourist attraction, attracting countless people to visit its majesty and appreciate its majesty. Every Chinese son or daughter will go to the Yellow River and look into the distance whenever they have the opportunity, hoping to see the beauty of the mother river. Why is the Yellow River, the "mother river" of the Chinese people, always turbid?

The Yellow River originates in Qinghai, China, and flows through nine regions with a total length of 5,464 kilometers. The source of the Yellow River is currently rumored to be Qariqu in Qinghai Province, which is also the most accurate "source" officially recognized. The Yellow River, as its name suggests, is yellow in color. It is precisely because there is a lot of mud mixed in that makes the Yellow River appear a turbid yellow color. Standing on the bank of the Yellow River, the muddy yellow water hits the bank, bursting out many white waves, like white horses running in the desert.

The banks of the Yellow River do not have guardrails like other rivers, and the surrounding ground is relatively slippery. Therefore, in order to prevent falling into the river, it is safe to stay at a certain distance from the bank. In order to capture the majesty of the Yellow River, some thrill-seeking photographers risked their own lives to go to the shore to photograph the rushing waves. A wave of water came over, and the waves washed ashore and licked the photographer's trousers.

We have been able to appreciate the beauty of the Yellow River in textbooks since elementary school, and we have also learned that the water flow of the Yellow River carries a large amount of sediment. Until now, in addition to planting trees and grass on the shore to expand the green space, There is no more effective way to remove sediment from the water, and people nowadays seem to be used to the turbid water. If it becomes clear one day, they may not be used to it again.

In areas near the Yellow River basin, there is a saying about the Yellow River: a bowl of water is half a bowl of sand. Exaggerated statements are used to show that there is a lot of sediment in the Yellow River. Even foreign media, which always likes to "attack" China's environment with unfounded accusations, have also acquiesced in the sediment in the Yellow River, as if its name has determined its turbidity. Where does the sediment "accumulated" in the Yellow River come from?

Almost 90% of the sediment in the Yellow River comes from the loess high slopes. According to statistics by scientists, there are nearly 35 kilograms of sediment in 1 cubic meter of Yellow River water, which is very rich in sand. The Loess Plateau is located on the Loess Plateau. The gravel on it is mainly scattered sand, which is very unfavorable for adhesion. Therefore, if it is washed by the Yellow River, it will easily fall into the river. Therefore, the work of covering vegetation is mainly carried out on the Loess Plateau.

There is abundant rainfall in summer, and a large amount of sediment is washed into the river by the rain, making the Yellow River water look more yellow. Although the yellow color looks like the color of the river after it has been polluted, the water is not dirty. There are more than 100 species of shrimps and fish living in the Yellow River water. In recent years, the water of the Yellow River has become clear due to effective management, but this still cannot stop the trend of the Yellow River bed gradually rising. Why has the country not dealt with the sediment problem in the Yellow River?

More and more soil is carried by the river water to the lower reaches of the river. As time goes by, the lower reaches of the river are getting higher and higher. In this case, why does the country not regulate it? Because this is not A small project requires many factors to be considered. Too much sediment has been accumulated in history, and it is far from a city that can solve these problems.