Riding the wind of rebirth

However, the most terrifying thing is that the existence of this reservoir directly led to the complete cutoff of the lower reaches of the Tarim River, causing serious desertification of the downstream green ecological corridor. In 30 years, more than 2000 million acres of grassland in the lower reaches were degraded and desertified, and large areas of Populus euphratica forests died and disappeared. , causing the animals that relied on these oases to disappear, causing many places in the Taklimakan Desert and the Kuruk Desert to "join together."

All of these have undoubtedly become serious ecological disasters.

At that time, Zhou Zhi was basically sleeping during the journey from Daxihaizi Reservoir and Tarim River Valley to Taitema Lake. Only when he occasionally opened his eyes, he could feel the deathly silence and desolation around him.

After switching to Zhouzhi in the early morning to drive, the whole road was still filled with dry river valleys and shocking desolation. Countless Populus euphratica forests, which are said to be "undying for a thousand years, not falling for a thousand years, and immortal for a thousand years", could not withstand the drastic changes in the ecological environment and turned into dry giant.

It wasn't until the car drove close to Ruoqiang and came to the valley of the Chelchen River, another river originating from the Altun Mountains, that Zhou Zhi saw life again - the group of wild camels running in the morning sun.

The topic of protecting nature sounds like a joke in Shu. Subtropical areas at the northernmost latitudes, such as Zhou Zhi's hometown of Jiachuan, have strong ecological recovery capabilities. Every year, river beaches are submerged, and after the water recedes, they are left bare, less than In one month, green grass and wireweed will be covered with green grass, and in autumn, reeds and sedge will be everywhere. Worrying about the environment feels almost like unfounded worry.

But moving to the lower banks of the Ta River, Zhou Zhi couldn't laugh anymore.

In fact, Chala Reservoir also has serious problems of desert water seepage and evaporation.

The only solutions that Zhou Zhi could come up with were to reinforce the leaking areas around the edges with cement, and to build a dike around the reservoir to reduce the water storage area of ​​the reservoir and instead use a method of deepening the water storage depth to ensure storage capacity.

Because the reservoirs in the northwest are the same as the plain reservoirs in the lower reaches of the Yangtze and Yellow Rivers, with a depth of only two or three meters. In theory, raising the embankment by one meter can reduce the evaporation area of ​​the reservoir by one-third, while the storage capacity remains unchanged.

If the height is increased by two meters, the surface area of ​​the reservoir can be reduced by half, and the idea of ​​laying small balls provided by Zhou Zhi can be used.

Don’t underestimate this idea. Take the Daxihaizi Reservoir as an example. The water storage area is as high as 68 square kilometers, but the water depth is only two and a half meters, and the total storage capacity is only [-] billion cubic meters.

However, out of the total storage capacity of 200 billion cubic meters, the amount of water evaporated per year is [-] million cubic meters.

For the lower reaches of the Tahe River, where "water is as precious as gold", if the evaporation area can be reduced by half, the evaporation volume can be controlled by half, and an additional 600 million cubic meters of water will be used every year, which will be a great achievement.

Another way is to build the reservoir into the mountains. Mountain reservoirs can be built very deep, and the temperature in the mountains is also low, which can perfectly solve the evaporation problem and the problem of water leakage on the sandy bottom. The water source will be abundant and uninterrupted, and even the water storage problem can be solved. .

As for after leaving the mountains, we can use the ancient wisdom of the Uyghur people to build a pipeline water network by simulating karez wells, build a large number of underground water storage tanks in the middle, and turn the terminal into a drip irrigation system, which can almost solve the water problem of the entire northern Xinjiang.

Of course, these are all idle chatter based on Zhou Zhi's imagination, but except for the final move of the reservoir into the mountains and the underground route outside the mountains, the previous ones are all effective measures that have been adopted by later generations.

Xu's father is in the financial system, and the nature of Sun Gong's work has nothing to do with water conservancy projects. Yesterday, Zhou Zhi had a lot of chats with his uncle Ai Yijie, but it is estimated that Ai Yijie does not have so much energy to promote, and can do a good job in sand fixation and wind protection. Zhou Zhi felt that his trip was not in vain.

However, he is also more transparent now, and he will not force things that cannot be pushed forward. He just tries his best in everything. Excessive exertion often does not bring any benefits to others or himself, but will cause a lot of troubles.

What's more, he has enough things on his hands now, and his own pot is still not cool, so how can he have too much energy to care about others?
Fortunately, in addition to casual ecological surveys and field surveys, Zhou Zhi also acquired a lot of jade specimens along the way.

For example, black jade, sapphire, topaz, and jasper have long been famous, and their reputation is only lower than Hotan white jade.

Hotan jasper is the best produced in MNS County, northern Xinjiang, and comes in several colors, from spinach green, sun green, light green to duck egg blue, apple green, etc.Among these jaspers, there are also first-class ones with higher value, which have fluorescent and cat-eye visual effects.

However, the price of such jasper material is now the same as that of other materials. We have not yet subdivided jasper to this level. Basically, we still price according to the color, jade, strands and cracks.

The price is much lower than that of white jade. Zhou Zhi just buys it casually, and there are a bunch of fine products in the trunk of the car.

In addition, there are Gobi weathered jade materials, strange stones, agate, etc., which are also valuable for collection, but they are still very cheap now.

Really unable to take it away, Zhou Zhi only chose a piece of natural weathered Gobi jade shaped like a galloping horse.

The jade next door is actually made of high-quality topaz, but the impurities have been beaten away by the wind and sand, leaving only the most lustrous part, which forms the shape of a galloping horse, which is quite beautiful.

A colorful stone like a screen, shaped like the towering mountains of Northern Xinjiang, with white on top and red on the bottom. The material is an opaque agate similar to Alxa. It is also weathered to create hills and ravines, just like the Danxia landform. The mountain peaks are piled with snow, and with a base, it becomes a ready-made table screen.

Give this to your godfather and he will definitely like it.

The third is a pure agate rough stone, shaped like a straw sandal, flat up and down, full of magnificent colors and the unique ring-like texture of agate.

Placed flat on the desk, it was a natural inkstone bed. Zhou Zhi could imagine how surprised his fourth cousin would be when he received this thing.

As for the Gobi topaz galloping horse, it must be Sui Huaxuan's new collection.

When they arrived in Urumqi, it was President Zhao and Director Qin who came in person to invite Zhou Zhi to the bank.

Zhou Zhi was flattered at first, but then he realized that Director Qin couldn't bear to see the money in his bag jumping out, and wanted Zhou Zhi to fill the hole quickly.

Zhou Zhi bought more than 250 million worth of goods from Hotan fellows on this trip, and bought more than 30 from the purchasing station. Adding more than 90 from the Urumqi Jade Carving Factory, and tens of thousands thrown out on the road, the total was less than 400 million. Gone.

After the more than 90 yuan from the jade carving factory was transferred, only 150 million yuan was left in the personal account of Zhouzhi Shudu Branch.

This trip to Northern Xinjiang took a total of eight days. In the blink of an eye, it was already the [-]th day of the New Year, and there were only a few days before the start of the new semester.

Zhou Zhi's pager started ringing non-stop, from school, from home, and even Zhao Xing was picking at him.

Zhou Zhi originally wanted to take a train to the capital of Shu with Xu Gang so that he could enjoy the scenery of the northern country along the way, but now he had no choice but to give up and take a plane back first.

As a city aiding Xinjiang, the route from Shudu to Urumqi has been opened as early as 154, but the aircraft type is still the Tu-[-], so there is no choice, and air tickets are still very popular.