The first spring in China desert has become history, and it has cost a huge sum of money to "artificially prolong life" 18 years. What was the result?

At the northern foot of Mingsha Mountain, 5 kilometers southwest of Dunhuang City, Gansu Province, there is a spring, which is nearly 100 meters long, about 25 meters wide and up to 5 meters deep. It is shaped like a curved crescent moon and is called Crescent Spring.

There are reeds on the south bank of Crescent Spring, but when you look around, the whole spring is surrounded by quicksand. Although it is surrounded by quicksand, Crescent Spring has never been covered by sandstorms, even during the period of strong winds and sandstorms. Spring reflects the moon without dust? ,? The ancient sand does not fill the spring, and the spring does not dry up? Because of the wonderful scenery and the crescent moon spring? The first spring in the desert? Known as.

The history of Crescent Spring can be traced back to the Western Han Dynasty. In the fourth year of the Yuan Dynasty (1 13 BC), Emperor Wu of the Han Dynasty lived in a fat pool. Han Wo Watts? That is, Crescent Moon Spring, from then on, it has become a place for literati and poets to play and watch.

It is a miracle that such a tourist resort has not dried up in the desert for more than 2000 years. However, there are hidden secrets behind the miracle. Although it is hidden, everyone knows in their hearts that the Crescent Moon Spring may have disappeared long ago without human intervention!

In 1950s, China investigated the Crescent Spring. At that time, the water surface of Crescent Moon Spring was 2 18m, the widest point was 54m, the average water depth was 5m, and the deepest point was more than 7m. After more than ten years, the size and depth of the crescent spring have not changed much. Until the 1970s, the water level of Crescent Spring began to drop sharply, which was caused by natural factors, but more by human factors.

1985 crescent spring reached the lowest water level in history, with an average water depth of only 0.7 ~ 0.8 meters. The spring is dry to the bottom, and everyone can walk at the bottom.

Facing the grim situation that Crescent Moon Spring is about to dry up, Dunhuang City began to study and take corresponding emergency measures to protect this world-class landscape and heritage.

With the strong support of the state, the emergency treatment project of crescent spring water level decline has started one after another. In this project, the water level of the crescent spring is mainly ensured by artificial water supply and diversion, which is mainly manifested in two aspects: first, four seepage fields are built around the crescent spring to seep underground, and the water level of the crescent spring is maintained and improved by increasing the groundwater level around the crescent spring; Second, the Crescent Spring is connected with the Danghe Reservoir in the upper reaches through an underground waterway. As long as the water level of Danghe Reservoir does not fall or rise, the water level of Crescent Spring will not fall or rise. Therefore, as long as the water level of Danghe Reservoir is guaranteed, the water level of Crescent Spring can be guaranteed, and the water level of Danghe Reservoir can be effectively maintained by manpower.

After more than ten years of treatment, the water level of Crescent Spring has obviously increased. In 2004, the average water level of Crescent Spring was still around 1 m, with an area of only about 7 mu. By 2065,438+00, the water level of Crescent Spring had risen to 65,438+0.7 meters, and its area had also expanded to more than 65,438+065,438+0 meters.

At present, the water level of Crescent Moon Spring is still very stable. We don't have to worry about the disappearance of this desert wonder, and I believe the country won't let it disappear, so friends can still enjoy the miracle created by human beings if they have the chance.