Chapter 413: Water Conservancy Core
People from Bianliang saw such a scene, the relationship of geographical location, several reasonable canals, connecting Xiping Lake and the Yellow River, a large amount of water, through a reasonable speed, from the Yellow River, into Xiping Lake, when they arrived, it was the third day of water injection, three days, so that the entire Xiping Lake was more than 2 meters of water, in terms of the depth of the huge lake, just to cover a bottom.
Of course, the lakes can't, all of them are the same deep, that's not conducive to flood control, the huge weight, suppressing the lake wall, will cause huge problems, only like natural lakes, step by step, can. In the entire Xiping Lake, the core area is about five or six square kilometers, which is more than 30 meters deep, and then gradually decreases to the most edge of the lake, which will be reduced to three or four meters.
In this way, more volume is obtained, which is convenient for construction, and at the same time, the overall structural suppression is not so large.
At this time, only the core area, five or six square kilometers of place, there is shallow, about two meters of water, counting the area, three days, the cumulative water demand, has reached 1,500 cubic meters, the number is very huge.
There are about 6 square kilometers of water surface, sparkling bursts, because above, or relatively dry relationship, some of the previous swamps, have also been cleaned up, exposing the loess, according to the introduction of some technicians, the daily water demand to a certain extent, if the Yellow River water has been in the current situation, about 50 days, can complete the water storage.
Of course, it can't be 50 days, in this era, maybe the sluice gate can be completed, the efficiency of the sluice is not so high, it is a huge noose, it must use human and animal power, every time it is opened and closed, it takes a long time.
This is the core of the entire Lingzhou water conservancy project, related to the surrounding 600,000 acres of irrigated land and nearly 1 million acres of dry land irrigation, irrigated land is 3 miles around the canal, but in other places, it is not impossible, as long as it takes effort, in short, compared to other places, it is much easier, this can be opened into half watered land.
It takes a lot of time to fill up the water and then open it up and flow into other ravines, and it will take a lot of time to release the water while flowing in, about 25 meters or so, and then it will take longer to fill it up.
This is not a reservoir to store electricity, it can only be generated after it is filled with water, this is only the most basic farmland water conservancy, and it is enough to figure out the end.
At a glance, although the water storage is only located in the core, about 6 square kilometers of small lakes, but a little look at the surrounding layout, you can already know how large the entire water storage area is.
What, compared with the actual examples, even those conservatives who want to pick the thorns the most, have nothing to say, they are all on the bright side, what else to say, such a huge reservoir, the water of the Yellow River into the water, as long as it passes through the ravine, it can be drained to other locations, and even, if there is really no gap, you can also use a waterwheel pulled by animal power to pump water, such an efficiency, I don't know how much higher than the efficiency of a single person.
The water is flowing, and as long as there is a certain amount of force, it can automatically enter the ravine, and then meet the irrigation water.
The reason why some people oppose the investment in infrastructure construction and farmland and water conservancy is because of the relationship between funds, and the funds above the court are all clumsy.
The funds of the imperial court need to first meet the normal operation of the entire court before other aspects are considered, even if there is a little money left, that is, sewing and mending, without considering efficiency, only considering possible problems.
No problem, or a little less water, at most it is just a reduction in production, but once there is a problem, for example, a large-scale flood, the impact can be great, once the inundation exceeds one million acres, millions of acres of harvest, the impact is not as simple as 1 million stone grain, the situation is chained.
Before meeting Zhao Xin, Ye Qingchen was more of a paste-framer, and under the current poor financial situation of the Northern Song Dynasty, he kept wandering, reducing some expenditures, and making five caps cover six bottles, which was limited in what he could do every year.
That is, the appearance of Zhao Xin gave Ye Qingchen the opportunity to renovate the farmland and water conservancy in the north, because at this moment, because of the long-term shortage of funds, the water conservancy system in the north has reached the point of collapse.
Fortunately, a limited amount of funds, even if it is a big waste, it is still used in practice, as long as it is in two or three years, continuous investment, when everything is through, you can make the water conservancy in the north, and there will be obvious changes.
Even Ye Qingchen, the third envoy, could not reasonably do a good job in the water conservancy projects in the north under the premise of controlling a huge amount of funds, let alone the northwest, where everything has no foundation.
These people didn't plan to let Han Qi compare with Ye Qingchen, the foundation of Lingzhou is not much worse than the northern part of the Northern Song Dynasty, both sides are using the Yellow River, but the lower reaches of the Yellow River, how can it be the same as the middle reaches of the Yellow River?
When I really saw Xiping Lake, everyone was speechless, what a great project this is, this reservoir was completed, and the Yellow River water was continuously introduced, with the help of the surrounding ditches, how many fertile fields would be brought, and some officials who were mainly concerned about the people's livelihood could even see a lush and yellow scenery in the future from the current dry yellow grassland.
Some conservatives who are still unwilling think about it and want to say that it is already there, but when they open their mouths, they can't say it.
Xiping Lake has not been completely filled with water, not to mention the ancillary projects around it, just say that the core of the 6 square kilometers of the lake, from the top, there is at least about 25 meters away, these side walls, not after cement treatment, just simple reinforcement, there are still various traces on it.
Among these traces of the lake wall, it is obvious that it is dug out at once, and the difference between it and the natural lake, as long as it has eyes, you can see it, and you can't say nonsense.
Lakes in general, most of them, have an average depth of less than 4 meters, and the deepest lakes are more than 10 meters, which are very rare, unless they are naturally formed structures or oceans.
More than 25 meters of unimpounded area, there is a large amount of water, a steady stream of injection, everyone knows, this is a new excavation, no matter how much land is used, just look at such a lake, as long as there is some understanding of irrigation, are clear about its role.
If this doesn't explain the problem, at least 12 main canals spread around, branching out countless small, densely distributed water canals, can't it explain the problem?
Standing on one of the higher places, you can see Xiping Lake, as well as all the surrounding water conservancy projects, in the north, a total of four canals, constantly pouring water into Xiping Lake, which is the canal that connects the Yellow River.
They don't have much geographical knowledge, but they can see that these four canals lead far into the distance, and there is no end in sight.
It is really difficult to tell the distance of people's sight, what they see, and when they look up and see the stars, they are hundreds of millions of light years away, on flat ground, based on the curvature of the earth, generally on flat ground, that is, tens of kilometers.
In the absence of a telescope, thirty or fifty miles is already considered normal.
There are 12 ravines, even if each one is only 50 miles, it is also a 600-mile-long ravine, plus this pond, this general project is very terrible.
Some officials even stepped forward to ask how far away it was from the Yellow River.
It is not far, it is not too close, the north is more than 400 miles away from the Yellow River, and the west is 120 miles closer to the Yellow River.
Just 4 waterways, more than 1000 miles of ravines, such a big deal, no one can imagine, this has begun to come out of the water, in the northwest, in addition to the Yellow River, what other rivers, is the amount of water so large?
Looking at the shocked expressionless people, the engineering personnel in charge of this project, with a smile on their faces, they got Han Qi's instructions and knew why they came, of course they had to shock them, otherwise, just take a look around Xiping Mansion.
The density of ravines around Xiping Mansion is not small, but it cannot be compared with the surrounding area of Xiping Lake.
It is easy to find the place of Xiping Lake, there is a natural environment, the general amount of engineering, it can be nearly doubled as long ago, and at the same time, the surrounding terrain and environment, as long as it rains, it is easy to flow into this lake through the ravine, and there are other methods.
It is a natural reservoir that not only brings water from the Yellow River, but also enhances the use of surrounding precipitation and surface runoff.
Irrigation, in fact, the most suitable, or precipitation, with the help of science and technology, in the desert, cultivated land, planting vegetables, that is the magic of human transformation of nature, but as long as there is a little brain, or some methods, a place with rainfall, compared with the desert, will not choose the latter.
Under the rainfall, it is natural that there will be some more and some less, and the wind and rain are smooth, which is just the good wish of the working people, and there are very few that can really be realized.
On the ground, the reason why rivers are formed is that the amount of water brought by rainfall cannot be discharged, and through the initial flooding, the next is to find a suitable place and flow into the sea to form a balance, which is the cause of rivers.
Xiping Lake is the same, the natural environment has not been formed, under the transformation of human beings, a natural core has been formed, after testing, it has formed this artificial lake that is rarely seen in the north, with a total storage capacity of more than 250 million cubic meters, as long as this project is completed, it is almost natural to become the core and focus, take this out, deter these ill-intentioned people, is the most suitable result.