If camels are specially introduced, then with the improvement of the ecology of the transformed sand area, more "uninvited guests" make the sand control team cry and laugh.

The desert is truly a magical place.

Before the development of Jiagu, not to mention the swarms of animals in this place, it was difficult to see even an ant in this place, and even a patch of insects was sunburned to death in the desert.

"There are no birds above, no beasts below, and no water and grass...... At night, the demons raise fire, rotten like stars. In the daytime, the wind and sand are scattered, and it is like rain" is the best description.

But it seems that countless seeds of life are buried in the sand, and as soon as the water is moistened, they will emerge one after another.

Mosquitoes breed from nowhere near the lake formed by the gushing of groundwater, and they like to fly into the tents in groups, quickly biting out of people's arms and faces.

Mosquitoes in tents are easy to kill, but swarms outside are not easy to mess with. After a few days, all the sand control people have gained experience, and even if it is hot outside the camp, they have to wear thick long sleeves and wear mosquito hats when they go out, just like "desert rangers".

And that's just the impact on life.

With the spread of planting trees and grasses, after several heavy rains, the grasslands, whether it is the alien crops milk vetch, giant Juncao, or salix, flower sticks, poplar firewood and other local psammophytes, are growing vigorously, and the wheat grass squares under the vegetation are still clearly visible.

Just like camels, in the desert, many animals can live if they have grass, and wait to die without grass, it's as simple as that.

Gradually, the meadows grew, and there were more wildlife.

Yellow sheep, hares and other wild animals, which were once the owners of the place, have also returned one after another under the call of water and fresh pasture.

More migratory birds also pass by, and rare white swans, yellow and white ducks, and shelducks inhabit in flocks to feed and live.

One day, there was even a steppe eagle in the sky.

In the past, the prairie eagle common in the Tengger Desert was the natural enemy of rodent squirrels and gerbils, and people died under the guns of hunters one by one in order to obtain its wing bones to make dry tobacco pipes. Even in the 80s, flocks of eagles could still be seen flying in the desert sky, sometimes diving to the ground to catch rats and protect the forest from gerbils. But today it's hard to see them!

Unexpectedly, the survivors were also attracted to this "oasis".

The appearance of the steppe eagle made the inhabited birds explode for a while, and also caused "accidental injury".

To this end, the camp also has a wildlife rescue room. There are two injured whooper swans inside, and in a few days, they will be ready to fly.

Although the increase in life has made the sand area more vibrant, it is not necessarily a good thing for the sand control team.

These "uninvited guests" don't know what it means to be polite, they have fresh grass, fresh saplings, and they eat well.

Planting grass and trees in the desert is not the end, and if there is no care and maintenance in the future, it will not take long for the newly planted saplings to be gnawed away, and it will be completely wasted.

The scope of the million-acre sand area is too wide, except for some vegetation protected by fences, more still need to be guarded by manpower.

Therefore, after the return of wild animals and the planting of trees, the tree planting team also had to adjust their work and rest and follow the sheep to "walk": every day as soon as the sun sets, they will enter the woodland to "be on duty" to protect the saplings from being eaten by the sheep, and then climb into the sand nest at 12 o'clock at night to rest.

What's even more interesting is that even at night, there seem to be wild animals coming around the tent to find food, because in the morning there are animal footprints around the tent, but they are all small animals, and the tent is still very safe.

The "troublemaking" of uninvited guests did add a lot of trouble to the desertification control team, but seeing a barren land transformed into a vibrant oasis in the future, and even becoming a paradise for endangered and rare animals in the Tengger Desert to breed and live, the desertification control team had a special sense of achievement.

The improvement of ecology and the visit of rare animals are also seen by the national survey expert group.

Biologists in the expert group suggested that Qi Zheng hope that no matter how the water environment is renovated and developed, Jiagu can retain and build a migratory bird sanctuary and animal paradise to ensure local biodiversity.

Qi Zheng gladly agreed, which was originally within the scope of Jiagu's plan, following the principle of development and protection.

Qi Zheng is more concerned about the evaluation of the Jiagu Desert development project and the construction of a large reservoir by the experts who remain here than the uninvited wild animals.

He still asked Academician Yuan, who he was most familiar with, to inquire about the news.

Academician Yuan smiled: "The assessment of the early stage of desert development is not bad. The plants you have planted are growing well, the diversity index is increasing, a stable community is forming in the planting area, the surface roughness is increasing, the wind speed is decreasing, and the purpose of wind protection and sand fixation has been achieved. ”

As for the general concern of soil moisture, the monitoring data shows that the soil moisture content in the desert ecological restoration area increases with the increase of soil depth. As for the changes in the shallow groundwater level at the survey sites, they have not yet been reflected. ”

"On the whole, Jiagu's ecological restoration method is reasonable and effective!"

This is visible to the eye.

Aside from these scientific results and data, standing on the land of desert governance, the most intuitive feeling is that this once barren desert is like covered with a green blanket, in addition to the planted psammophytes, herbaceous plants have slowly begun to take root, life has appeared on the ground, and more and more animals have returned to their familiar land.

"What about the assessment of climate impacts?" Qi Zheng asked.

One of the major objections to the construction of reservoirs and even the development of deserts in the expert group is that the high evaporation in the northwest will exacerbate the adverse effects on the climate.

Academician Yuan frowned slightly: "In fact, in the past ten years, most of the northwest has seen 'precipitation and runoff increase, glacier melting acceleration, lake water level rise, wind and sandstorm days decrease, vegetation has improved' and other phenomena, some experts have therefore put forward the inference that the climate in northwest China may be transforming from 'warm and dry' to 'warm and wet'. ”

"But a lot of people are skeptical about it and don't believe in the 'warming and wetting' trend in the Northwest. However, in a small area of the surrounding area, a large number of monitoring data show that with the increase of surface water resources, land surface evapotranspiration is strengthened, resulting in an obvious trend of 'warming and humidifying' the water cycle and increasing precipitation. ”

Qi Zheng nodded secretly, once the underground channel leading to Lake Baikal is fully developed, the northwest region is equivalent to adding half of the Yangtze River, and the trend of "warming and humidification" will become more and more obvious. It can be said that this is the result of the opening of people and the help of heaven, and the spiritual array has increased the total amount of water resources and global warming.

Academician Yuan said the key point of discussion: "The most critical question now is, can the warm and humid region turn the northwest region into the south of the Yangtze River?"

"The prevailing view is that warming and wetting is a double-edged sword for the Northwest as a whole, and that the risks are getting higher in the long term. While increased precipitation is good for ecological restoration, other adverse impacts should not be ignored. For example, earlier flooding of rivers in arid areas may alter the hydrological regime of rivers or experience more heavy rainfall......"

Qi Zheng listened very carefully. After all, the introduction of a large amount of water resources is a temporary cool, but whether it can be cool all the time, Qi Zheng is not easy to say. Whether the basic climate state of the entire Northwest will change dominoes, he could not predict.

Therefore, it is a good idea to listen to the assessment of the professionals, so as not to do bad things with good intentions.

"At present, even if a large reservoir is built, the northwest region still needs to continue to vigorously save water and refine water use, and must not use water in a lavish manner. At the same time, it is necessary to plan a long-term water security strategy as early as possible, and study what to do if precipitation and runoff decrease in the future......"

This is very much in line with Qi Zheng's concept of development; the long-term water security strategy is also true, after the environment and climate are changed, who can say for sure what will happen in the future?

......