Zhang Yang simply got off the balance bike, and led He Xiaoman, who also got off the balance bike, to walk beside the crescent moon spring that was still a meadow before winter, feeling the common baptism of the breeze by the spring and the gale blowing in the desert.

According to legend, a long time ago, the Dunhuang area was still an endless Gobi, with no Mingsha Mountain and no crescent spring.

It is said that there was a great drought here one year, and the trees and crops were dead, and the people were thirsty and unbearable, and they let out a loud cry of sorrow, of course, we don't know, and we don't dare to ask, this is the Gobi Desert in the first place, how did this so-called great drought come about? It should be quite dry every day.

Let's ignore these for now, saying that after the drought here, there is a beautiful and kind white cloud fairy passing by here, just like our little man, haha, it is said that this white-clothed man heard the heart-rending cry of the people here, it was like a pinprick, and then he sadly fell tears of sympathy.

This is amazing, this white cloud fairy's teardrop is very magical, and it immediately turns into a clear spring when it lands, relieving people's thirst.

So, in order to thank Dade, people built a temple to worship the White Cloud Fairy.

Who knows, this behavior of the people here directly annoyed the Shensha Daxian in the Shensha Temple, and he grabbed the yellow sand and turned it into a sand mountain to fill the clear spring and drive away the Baiyun Fairy who took away his incense.

The White Cloud Fairy is shallow, and he can't fight the Shensha Daxian, so he came to the Nine Heavens to find Chang'e and borrow the moon to fight with the Shensha Daxian.

On the fifth day of the first lunar month, the white cloud fairy borrowed a crescent moon and placed it in the middle of the sand mountain to turn into a clear crescent spring for people to drink water and water the fields.

Then the so-called Shensha Daxian used the demon magic again, planning to fill up the crescent moon spring, which annoyed the heavenly Chang'e, she was very angry after knowing it, and condemned the Shensha Daxian for being arrogant and unreasonable, deceiving people too much, gently brushing the sleeves, the wind suddenly rose, and the quicksand that filled the spring was blown to the top of the mountain.

Then it was magical, saying that this Shensha Great Immortal was so angry that it roared like thunder, and the sand mountain rang out because of this.

What's the matter, isn't this another diametrically opposed story, but the original residents are much stronger than the outsiders, and they just find an insider to slander, and these outsiders just want to slander the owner of the house to elevate themselves, haha!"

As the legend of Zhang Yang was told, the people in the live broadcast room were also laughing, yes, it was simply a high judgment, it was originally an outsider, and he had to come over to slander other people's locals, so he could not come in and live a good life, obviously these outsiders have failed.

Speaking of the crescent moon spring as early as the Han Dynasty is a tourist attraction, the Tang Dynasty has boats, springs side temples, the south bank of the spring originally a group of simple and elegant Su, scattered and well-made building complex, from east to west there are more than 100 rooms such as Niangniang Palace, Dragon King Palace, Bodhisattva Palace, Medicine King Cave, Thunder God Terrace, etc.

In these halls, especially those main halls, there are more than 100 colored sculptures, hundreds of murals painted, important halls are hung with plaques and inscriptions, calligraphy is elegant and handsome, can be called the top grade.

After going in and taking the people in the live broadcast room to feel the only remaining temples, Zhang Yang, who returned to the crescent moon spring, began to answer the questions raised by the fans when he first came.

He casually found a dry grass and sat down, raising his eyes to look at the crescent moon spring in front of him that rippled in circles with the breeze.

"Okay, after all the legends and stories, let's have some truth.

It is said that the famous period of the crescent spring is the same as what I just said, it has become a famous spot as early as the Eastern Han Dynasty, and it is recorded in the "Rebuilding Suzhou New Chronicles" and "Shazhou Weizhi Crescent Spring Strip": its water is clear, surrounded by quicksand, although it encounters strong winds, and the spring is not covered by sand, and the name is also ......

There are many such records, through which it shows the characteristics of the crescent spring that does not dry up for thousands of years, it has been very well-known in the Eastern Han Dynasty, and the record of the amount of water in the crescent spring, we see that the text is mostly thousands of years without drying up, and the sand is not covered by words.

Moreover, there is no historical record of the decline and drying up of the crescent spring in the history books, indicating that the crescent spring has a long history of existence, and the dynamics of the spring water have been relatively stable in the early historical period. ”

Hearing Zhang Yang say this, He Xiaoman and the fans immediately thought in their hearts after seeing Zhang Yang pause, 'But' is coming.

Really......

"However, since the 60s of the 20th century, the water level of the crescent spring has shown a unilateral downward trend and continued to decline for many years, and by 1998, the water level of the crescent spring has dropped by about 10 meters!

This is roughly in line with the decline in groundwater in the region, so what is it that causes the springs that have not changed for thousands of years to start drying up in our generation?

To say this, we must first figure out why the crescent moon spring has not dried up for thousands of years, and then we can follow the vine and find the reason for its dryness.

Crescent Spring is located in the south of Dunhuang City, north of Mingsha Mountain, the spring is very small but does not dry up for many years, the supply mode of its spring water is guessed a lot, after years of research efforts, it is basically excluded that there are several theories such as underground confined water, rising spring, ancient river channel remnant lake, etc.

It is actually very simple to overflow the groundwater under the loose strata, and the water supply of the groundwater comes from the Dang River in its northwest, that is to say, this Dang River is the source of the Crescent Spring, you can also see if the current Crescent Spring is not like a small bay, of course, it is just like, no one has proved that this is the bend of a river in the past. ”

Sure enough, as the drone lifted off, everyone took a second look at the crescent spring in the picture, and when they hadn't heard Zhang Yang say it before, they would have thought that this should be like this, but at this time, it really looked like a small section of a river bending.

In fact, there is no aquifer under the crescent spring, only a loose structure, and the terrain around it is higher than the crescent spring, so that the water flow in the underground continues to gather in the direction of the crescent spring, forming a spring body, and the crescent spring happens to be a unique depression, so the groundwater is exposed here, in summary, the groundwater is not blocked when it gushes out to the ground, so it always gushes out to this depression continuously, and finally forms the crescent spring.

Here we are going to talk about the Dang River, the water source of the Dang River comes from the ice and snow melt water, the water volume is very stable, so the crescent spring can be stable for thousands of years, and the sand above the spring is loose, but the amount is not large, even if there is yellow sand blowing into the crescent spring, or burying the crescent spring, the spring water will re-emerge in the nearby area, so although the spring body has been displaced for many years, the water has not been broken.

However, due to the needs of the construction of Dunhuang City several decades ago, the Danghe Reservoir was built in the upper reaches of the Dang River, and the amount of water in the downstream of the reservoir was reduced, and the river was basically dried up, which was the main reason for the continuous decrease in the water volume of the Crescent Spring.

At the same time, due to the increase in the surrounding population driven by tourism, the amount of water used in agriculture has also increased, and the amount of groundwater extraction has also increased, so that the groundwater recharge has been diverted, and the recharge of the crescent spring has become even less.

Now the water of the crescent spring is still decreasing, and the thousand-year-old spring is about to be destroyed by human activities, which has to be said to be a disaster.

Of course, all this is just my personal opinion, and it is also the conclusion obtained by querying some information, you must not take it out and say that what I am talking about is authority, don't be pressed to the ground by others to rub and spray, haha!"

The time came to noon unconsciously, the temperature seemed to rise slightly, but it was still very cold, and he had been outside for nearly a morning, Zhang Yang could bear it, but he didn't want He Xiaoman to stay outside and get cold.

The plan was to find a mobile tent campsite set up here to rest first, and find a place to eat the characteristics of this place by the way, but after he searched for a long time, he still didn't find any restaurant with a camping tent that had the existence of the Three Treasures of Crescent Spring.

"Strange, is there no longer the Three Treasures of the Crescent Moon Spring? Why haven't I found them for a long time?"