Military Technology

In fact, it is not only the Three North Shelterbelts and some other shelterbelts. In northern urban greening, fast-growing poplar is widely used for greening because of its high survival rate, fast growth speed, and low price. mobile terminal m.

But the result of this is that in April and May every year, a large number of "white hairs" ravage the world, causing major troubles to the citizens. These fluffs are flying like snow, and the doors and windows are afraid to open, which seriously interferes with the line of sight. You must always pay attention to safety even when walking.

Moreover, it is extremely flammable, and it is easy to cause a fire, which brings hidden dangers to public safety. Some citizens who are allergic to willow catkins are even more miserable. These will stimulate and aggravate respiratory diseases such as asthma and chronic bronchitis, which is not good for health. It will even interfere with industrial production and scientific research activities and affect the accuracy of precision instrument measurement.

Now the municipal departments of various cities have also realized the disadvantages of this kind of fast-growing poplar, but too many were planted before, and the quantity was too large, and most of them had already grown into forests. It is basically impossible to cut off and remove it all at once, and it can only be replaced slowly.

In response to the current problem of the flying catkins of these fast-growing poplars, the municipal department has also made a lot of efforts, the most important of which is to "sterilize" these fast-growing poplars

There are mainly three types of sterilization operations for fast-growing poplars. One is to spray these fast-growing poplars during the flowering season of fast-growing poplars in April and May every year to inhibit their flowering, so as to control the problem of flying catkins.

The second type is also similar to the first type, except that the technology of tree circumcision is used to suppress the flowering of these fast-growing poplars.

The first two are palliative treatments, and basically need to be treated once a year, so it is time-consuming and labor-intensive. The third method is more straightforward. Use the grafting method to graft the fast-growing poplar to other tree species, so that the fast-growing poplar will not have any tidbits.

But for this kind of protective forest in the desert, there is no need to be so troublesome. Prevention in the city also needs to consider the crowd factor, but it is not necessary here. According to Du Xiuming, in April and May every year, it is simple and trouble-free to arrange the relevant helicopter flight spraying once.

Moreover, desert areas like this are sparsely populated, so it seems that there is no need to consider the impact of flying catkins.

Wu Hao chose a water conservancy facility forty to fifty kilometers away for the last stop on the farm. This water conservancy facility already existed. It's just that because of the start of Wu Hao's smart unmanned farm project, there will also be expansion and renovation here.

Soon there will be a water pipeline extending from here to the farm to provide water for the farm's crops.

Of course, this is a desert, not a hinterland, so water sources are crucial for both humans, animals and crops.

In order to attract Wu Hao and the others to build the farm in Tiemen, the Second Division gave up a lot of capital and offered to Wu Hao and the others to use this water conservancy facility.

And after Wu Hao and the others determined the location, they couldn't just take over and use it for nothing. They still understand the truth of throwing for plums and returning peaches.

Immediately promised to invest in the reconstruction of this water conservancy facility, so that it can meet the needs of Wu Hao and the original irrigation users.

Although the iron gate is in the desert, it actually has water. Every spring and summer, the melted glacier water from Kunlun flows through here, thus forming an oasis in Tiemen.

Therefore, Tiemen has been an important town and military pass throughout the ages. You must know that in this arid desert area, whoever controls the water source controls everything, so this place has also become an important ancient pass.

Of course, this function is lost here now, but it does not prevent it from being an important town in the desert.

In addition to bringing people water and crop irrigation, a large part of the rivers flowing here actually flow into the desert and then disappear. This is what we often call inland rivers and seasonal rivers.

The famous Tarim River belongs to this kind, and there are many other rivers like this in the southern Xinjiang desert along the foot of Kunlun.

It's just that in the past, with the continuous increase of people's water consumption and the backwardness and rudeness of irrigation methods, many rivers have dried up.

Over the years, with industrial adjustments, irrigation technology upgrades, and related protection, many rivers have resumed their flow.

Wu Hao's reconstruction of this water conservancy facility is actually to expand the capacity of the water conservancy facility to prevent excessive use from drying up the place.

Originally, Wu Hao thought that this water conservancy facility was a dam and a reservoir, but after arriving, he found that it was not the case at all.

This water conservancy facility is a dam, but this dam is different from the dams we usually see.

To put it simply, this is an artificially raised oasis wetland, a table full of wetlands of Populus euphratica. According to the person in charge here, the dam was built in the 1950s and 1960s, originally for irrigation.

At that time, in order to prevent excessive evaporation, some Populus euphratica forests were planted in the dam, on the one hand to conserve water, and on the other hand to prevent evaporation.

Unexpectedly, the Populus euphratica here gradually began to multiply and grow, and gradually covered the entire dam, forming a large area of ​​Populus euphratica.

And slowly along the water's edge, some reeds and aquatic plants grew. Seeing this, the veterans of the Corps from the mainland tried to raise fish in the dam, but they did not expect it to be successful.

With water, fish, aquatic plants and Populus euphratica, many birds are attracted. This has also made it an important natural ecological wetland protection area in the entire western Xinjiang, and a special protection station has been set up.

Although it has become an ecological wetland protection area, in order to meet the drinking water and agricultural irrigation needs of the surrounding and downstream people, the dam is still in operation to provide water for the downstream and surrounding areas.

It's just that it is controlled within a reasonable range every year, and it must not affect the ecological environment here.

The main purpose of this reconstruction is to expand the capacity. On the one hand, it is to dredge the silt of the river and the sediment under the water area to increase the capacity of the reservoir. On the other side, it is to expand the entire wetland area, so as to further increase the storage capacity and the water content of the wetland.

Therefore, the entire reconstruction process is very troublesome, not only to invest money in construction, but also to consider ecological issues. Even for the expansion project of the entire dam, they have been criticized by some experts in ecological protection.

But this is a real need, and such a large project cannot be stagnated because of a few criticisms from these experts.

So Wu Hao and the others adopted the method of including these ecological protection experts in the dam expansion project, allowing them to offer advice and play their role, and minimize the adverse impact on this ecological wetland reserve.

[After checking relevant information, there are indeed such wetlands in some areas of southern Xinjiang, not only fish, but also unique canoes. 】

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