Duan Gongzi also became interested, and he continued with great interest: "I agree with Xiao Fei's opinion, but I want to add that this kind of change in the natural ecological environment is not sudden, it happens overnight, it is gradual and quiet, and it must be related to people's neglect and destruction of the ecological balance of the natural world." The nomadic countries that pass through here only consider to expand their own power, excessive deforestation and farming, so that the original poplar forest and other good vegetation environment have been seriously damaged, water conservancy, agriculture and other facilities are facing a fatal crisis, and eventually lead to a country is covered by the harsh wind and sand outside the plug, of course, the cause of the war is also there, this effect is also to add fuel to the fire, so that the water conservancy facilities and vegetation have been further seriously damaged, after the 3rd century AD, the lower riverbed of the Tarim River flowing into Lop Nur was increasingly silted up by violent sand.

The impact of our human activities on the drying up of Lop Nur can be said to be getting bigger and more prominent in the near future, and the continuous supply of water and lush trees are the key to the survival of the oasis in the wasteland. The ancient city of Loulan was built in the lower reaches of the Peacock River Delta, where the water system was developed, and there were once flourishing poplar trees for its construction. At that time, the Loulan people built more than 100,000 square meters of the ancient city of Loulan near Lop Nur, and they cut down countless dense trees and reeds, which will undoubtedly have an irreversible negative effect on the environment. Moreover, during this period, the intensification of human activities, the change of the water system and the destruction of the war, which further deteriorated and destroyed the original fragile ecological environment, as well as the dense tree stumps planted in the Xiaohe cemetery that we just discovered, show that in fact, the Loulan people had felt the severe crisis of the tribe's survival at that time, but they were also helpless and powerless, so they had no choice but to pray for all kinds of worship to bless their children and grandchildren to continue to reproduce from generation to generation. However, the cutting down of already scarce trees exacerbated the already deteriorating environment of the area, and the eventual drying up of Lop Nur was closely related to the overdevelopment of the upper reaches of the Tarim River. This can be confirmed by the interruption of the Yellow River in recent years. Lop Nur also began to shrink rapidly due to the lack of water supply, and finally died out.

And this situation is not my own assumption out of thin air, we can get a glimpse of the leopard from the relevant history, according to the "Water Jing Note" record, after the Eastern Han Dynasty, Loulan is seriously short of water. Dunhuang Soler led 1,000 soldiers to Loulan, and summoned 3,000 soldiers from Shanshan, Yanqi and Qiuci to cross the riverside day and night to divert water into Loulan, alleviating the dilemma of water shortage in Loulan. But after that, despite the best efforts and attempts made by the people of Loulan to dredge the river, the ancient city of Loulan eventually broke off from water. The lack of water resources worsened people's health and weakened their resistance, so the plague broke out, and the residents of the ancient city of Loulan had to abandon the city in order to survive, leaving behind a dead city. So in the raging desert storm, Loulan was finally annihilated by the sand dunes. "I applauded Duan Gongzi's words, in fact, no matter what he said, I felt that he was particularly correct and reasonable, and I, a hardcore member of the Appearance Association, was completely captured by his excellent appearance.

Garfield also vowed to say: "But I think that 600 years ago, there was a large area of forest in and around the Lop Nur Depression, a wide variety of vegetation, birds and beasts infested here, and the ecological environment was very different from now." During this period, the Tarim River, the Peacock River and other rivers have sufficient water sources, the Peacock River is parallel to the ancient city of Loulan and only about 22 kilometers, if the city of Loulan is short of water, it is completely possible to lead the water of the Peacock River into the city. Loulan is located at the key point of the Silk Road and is a battleground for soldiers. The war led to the felling of a large area of forests, and at the same time, due to the geographical location, the increase in population made it necessary to burn a large amount of land for the reclamation of tuntian, and a large number of trees were cut down for handicraft workshops and civilian cooking fires. Excessive logging has caused serious damage to the natural environment, resulting in soil erosion and silting up rivers and lakes, raising river beds and silting up deep lakes. The ancient city of Loulan was built on the upper part of the highland platform, and the outside of the city was surrounded by water. Therefore, the destruction of Loulan City may be that Lop Nur raised the lake water in a certain period of time, causing the water level to rise, spreading to the west of Loulan City, and at the same time Loulan City and the surrounding crust sinking, the Peacock River and the Tarim River and other rivers were injected into Loulan City downstream, resulting in the destruction of the ancient city of Loulan, so Loulan disappeared in a monstrous flood, at that time it could be a monstrous flood, rolling in, unstoppable, surging, and the Loulan people inside could not dodge and were destroyed. ”

Hu Jiaojiao also said with feelings: "I also think that Loulan was finally destroyed by the plague disease, because there have been plague places in all dynasties, maybe there is a plague from other places that caught them off guard, mercilessly took the lives of eight or nine out of ten residents in Loulan City, and those who survived have fled from Loulan and avoided other places." Because I heard that the ancient city of Loulan was suddenly abandoned, there is no trace of war there. Perhaps, only the plague can cause such a powerful killing, can it cause a scene of ten rooms and nine emptiness, and people can flee desperately, and there will be no trace of it in the long river of history from then on. ”

Zeng Lu couldn't help but say: "I think what Hu Meinu said is very reasonable. But I personally think that Loulan is defeated by biological invasion, you see, there are some traces of this strange insect in the cemetery, not to be underestimated, I have heard people talk about this terrible insect, a mole cricket insect introduced from the two river basins, there are no natural enemies in Loulan, living in the soil, it is said that this insect can live on the white plaster soil in the Loulan area, and can also enter the residential houses in groups, so people can not eliminate them, so they have to abandon the city. ”

Everyone expressed their opinions and argued, and I smiled and said: " Don't you say that Loulan girls are famous all over the world, maybe they are visitors from outside the world to see Loulan girls look beautiful like flowers, like flowers like jade, they have heard of the name for a long time, and they have coveted it for a long time, so once, they were unprepared, and robbed these Loulan girls to the outside world as brides, so Loulan only had poor men left, but they were used to seeing the local Loulan beauties, and they were not interested in the girls of other nationalities, so they were heartbroken and never married, and finally Loulan disappeared. Everyone laughed and laughed.

Xiao Fei said with a hippie smile: "Ah, you are really imaginative, imaginative, think as you like, you write at a glance, you think about it every day, you still can't study history, you must uphold the facts and evaluate objectively." ”