The Yellow River has become a hanging river, so why not use a dredger to dig up the sediment and let

1. Mainly because sand dredging will cause soil erosion; 2. The second is that the sand in the Yellow River is not simply sand, it contains a lot of soil, and does not have the properties of building materials, although the sediment accumulation of the Yellow River is a very serious problem, but the sand can not be dug at will, because it involves the whole body, once the amount of sediment in the Yellow River is reduced too quickly, then the downstream estuary is prone to seawater inflow; 3. Affect the ecosystem of the Yellow River, the Yellow River already has its own unique ecosystem, if the riverbed is forcibly lowered, it will have a great impact on the survival of animals and plants around the Yellow River, for example, some aquatic organisms are also likely to become extinct due to environmental changes, and widening the river channel is also easy to cause the river to be cut off. Hope it helps!

"A bowl of water and half a bowl of sand" is the Yellow River. In the lower reaches of the Yellow River, there is a section of the river, 800 kilometers, which has become a hanging river, and in some places the riverbed has been 10 meters above the ground. So, why not dig up the sedimented sand?

Everyone should understand this principle, dig up the sediment at the bottom of the Yellow River and let the Yellow River move down as a whole.

The drop of the Yellow River will increase, the speed of the water flow will increase, and the intensity of the erosion of the Loess Plateau will be strengthened, and more sediment will be carried away. Soil and water conservation on the Loess Plateau seems to be a big problem, and it is very difficult to solve, but this is the root cause. Otherwise, digging up the sediment at the bottom of the Yellow River will not cure the symptoms and the root cause, and the gains will outweigh the losses.

Yellow RiverMost of the sediment is mud, and the sand (sand) content is too low to be used in everyday constructionThis is why we often see news about illegal sand mining in the Yangtze River, but not in the Yellow River.

In fact, from the analysis of the soil quality of the Loess Plateau, most of the sediment of the Yellow River comes from the Loess Plateau, and although the soil layer of the Loess Plateau is often dozens of meters thick, even the trees can not survive.

The average flow per second is less than 2,600 cubic meters, and in the middle and lower reaches of the plain, the water depth of the Yellow River is actually two or three meters deep on average, and the thickness of the silt below far exceeds the water depth of the Yellow River itself, the sediment carried by the Yellow River actually reaches 1.6 billion tons every year, of which 1.2 billion tons flow into the sea, and the remaining 400 million tons are deposited to form a plain and riverbed, which is also the difficulty of the Yellow River management since history, and the Yellow River flood is actually caused by excessive sediment deposition.

The rising riverbed has raised many sections of the lower reaches of the Yellow River to a height above the ground, and the Yellow River has been diverted many times in history, each time for the same reason, too much sediment precipitation is too high in the riverbed.

The risk of dam failure during the flood season has historically been largely based on dam restoration and river excavationLord, these are actually the symptoms of the pipeline, too much silt caused no way, the dynasties in history have spent a lot of financial resources to control the Yellow River, in fact, the effect is only for a while at most.

My hometown is by the Yellow River, let me tell you why.

First, sand dredging will seriously damage the ecological environment in the Yellow River. At present, there are a large number of organisms in the Yellow River, as well as rare protected animals, there are a total of 121 species of fish (subspecies) in the main stream of the Yellow River, and 98 species of pure freshwater fish in the main stream, accounting for the total.

We cannot destroy the ecology and the home of living organisms for the sake of human survival, and it is of great significance to protect the biodiversity of the Yellow River.

Second, the Yellow River is turbulent, which is not conducive to sand dredging. The Yellow River originates from the first stage, and after the drop between the second and third stages, the Yellow River flows rapidly, which is not conducive to carrying out the task of sand dredging.

Third, the sediment excavated by the Yellow River is difficult and costly. We all know that in addition to the cost of dredging the dredging of the Yellow River, the cost of dredging the Yellow River is also necessary for the resettlement of the excavated sediment, which is also easy to damage the ecology of the resettlement area and cause desertification.

Because such a project is very dangerous, and such a project is likely to cause the collapse of the Yellow River, which will affect the people on both sides of the river.

If you dig with a dredger, it will make the situation more serious and will not necessarily have a good effect.

The sediment accumulation in the lower reaches of the Yellow River forms an above-ground river, which brings great hidden dangers. It is precisely because of the existence of above-ground rivers that it is difficult to carry out dredging operations in the lower reaches of the Yellow River. In addition, the sediment under the Yellow River comes from the Loess Plateau in the middle reaches, and if serious soil erosion continues to exist on the Loess Plateau, it is difficult for dredging operations to be effective.

aqui te amo。

The lower reaches of the Yellow River are now an above-ground river due to the accumulation of sediment, but it is impossible to dig up all the sediment because it has become the riverbed of the Yellow River.

Because the project is too large, if the sediment is removed, it will damage the ecological environment of the lower reaches of the Yellow River, and it is not conducive to environmental protection.

Because the symptoms are not the root cause, a large amount of sediment will continue to rise with the Yellow River and continue to rise to the ground.

It should be impossible to manually pull away the sediment and move the riverbed down, mainly because the Yellow River is so big, and the manpower and material resources required to do so are incalculable, so no one will do it.

The Yellow River is the second longest river in China and the mother river that feeds the sons and daughters of China, but it has been flowing for thousands of years, and the lower reaches of the Yellow River have long become a hanging river, and its riverbed elevation is higher than that of the cities along the way.

The elevation of the Yellow River can be reduced in a short period of time, but the drop of the river will also increase, and the erosion of the Loess Plateau will be intensified.

No, because the project is very big, the Yellow River is very deep, and this kind of thing is almost impossible to achieve.

No, because the amount of work is too large and not realistic at all.

Because there is so much sediment in the Yellow River that it cannot be dug up at all, and a lot of manpower, material and financial resources have to be invested, the ecosystem of the Yellow River basin has reached a balance and cannot be transformed.

Because the Yellow River has a lot of sediment, this cannot be realized, and when the Yellow River has to pass through some places, it will wash some sediment into the river.

The sediment content of the Yellow River is very large, and it is very difficult to move down as a whole, and it takes a very long time and a lot of energy to dig out the sediment.

Because it is not easy to complete this work, we must look at it rationally.

The main reason is that there is too much sediment piled up, and it takes a lot of manpower and material resources to clean it up.

Because it can't be cleaned at all, and it can't be cleaned at all, so I haven't cleaned up the sediment until now.

Because the sediment cannot be cleaned up at all, even if it is cleaned up today, it will continue to accumulate tomorrow, so there is no need to clean it up.