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Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

Guide

The shrinking area of Dongting Lake was once a matter of great concern, and Project 4350 aims to restore the lake to pre-1949 levels. However, achieving this goal is not easy, and there are real challenges such as sediment problems. In this way, we will prevent a major levee burst that may happen again in the future.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

Background and goals of Project 4350

On the issue of controlling the area of Dongting Lake, we should not be in a hurry, but should do what we can. At present, the main goal of Project 4350 is to restore the area of Dongting Lake to its pre-1949 level.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

The frequency of flooding in the Yangtze River is high, and flooding is a natural phenomenon in the Yangtze River basin, and it is impossible for Dongting Lake to recover to the size of 800 li, because that would make Dongting Lake lose its function of flood discharge. The water of the lake after the flood is the water of life of Dongting Lake, and it is also one of the most important functions of Dongting Lake.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

The real challenge of the shrinking of Dongting Lake

The shrinking area of Dongting Lake did not happen overnight, nor was it caused by a simple cause. From more than 6,000 square kilometers in the Qing Daoguang period to 2,368 square kilometers today, the shrinkage of Dongting Lake has been a problem for hundreds of years.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

The area of the lake is shrinking, the lake water is decreasing, it stands to reason that Dongting Lake should no longer have the function of flood disaster, but the strange thing is that the flood season of Dongting Lake has not yet come, and the citizens of Xiangtan, Yueyang, Changsha and other places are already nervous.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

The frequent occurrence of dam bursts in Dongting Lake has intuitively made us see the direct impact of the shrinkage of Dongting Lake, and we have realized that the difficulties faced in restoring Dongting Lake to its former 800-mile surface are far more than just sediment.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

The significance of Project 4350

Sediment is the biggest problem, and it is almost impossible to restore Dongting Lake to its size of 800 miles, and to clean up the sediment that has accumulated at the bottom of the lake.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

Even if the scavengers work 365 days a day, it is difficult to complete. And even if the sediment can be cleaned up, it is impossible to reproduce the 800-mile stretch of the lake.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

The operations of resettlement to build towns and return farmland to lakes require a lot of capital investment, and if it is finally found that Dongting Lake cannot be restored to the size of 800 miles, the 4350 project will fail.

Although it seems that the 4350 project can restore the area of Dongting Lake to the level of more than 2,400 square kilometers at most, we should not be too pessimistic.

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

In 1949, the area of Dongting Lake was 2,462 square kilometers, and if the 4350 Project can really expand the area of Dongting Lake to the level of 2,368 square kilometers, then it means that the 4350 Project has been considered a success.

As long as the sediment and sand and gravel are reduced, the damage caused by the big levee burst will be greatly reduced after the diversion is completed!

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

Project 4350 is just the first step, and we need to explore and try various ways to see if it is possible to expand the area of Dongting Lake to the level of the Qing Dynasty. As long as the goals in all aspects are achieved, the Dongting Lake levee burst incident will be reduced a lot, and the disaster losses caused will be greatly reduced!

So the significance of Project 4350 is very huge, and at the same time very challenging!

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

It doesn't matter if it turns out that this goal cannot be achieved in the end, after all, Dongting Lake still has a lot of problems to solve if it wants to return to the size of the Qing Dynasty.

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The issue of the size of Dongting Lake has touched the hearts of countless people. In the face of the threat and challenge of natural disasters, we cannot give up lightly, let alone give up! Project 4350 may not restore Dongting Lake to its size during the Qing Dynasty, but even if the lake is expanded to the level of 1949, it will solve many problems and be a successful start. I hope that Dongting Lake can regain the magnificent scene of the past, come on!

Dongting Lake, which was almost dry, why did it burst its embankment? 180.5 metres have been plugged and 45.5 metres remain.

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