The bustling construction site in Lingzhou has been fully rolled out, and itself, before Han Qi arrived, according to the original plan, based on 10 construction sections, started a huge project, almost intermittently for about 30 days.

Of course, it is not a full-scale project, a huge project involving 250,000 people and 200,000 head of livestock, not a big saga, but a lot of things involved.

Even if a high-ranking official like Han Qi has a large number of subordinates, he may not be able to coordinate well in a short period of time.

The Weizhou Conference is more important than this project, how big is the idea of Lingzhou, there is not enough funds, and it can only make a small fuss, and manpower is a nightmare without sufficient financial support.

Han Qi only left two or three people in charge, and the rest were all transferred to Weizhou, but on the first day of the Weizhou Conference, after the income was locked, he gradually sent people back, but without his personal support, the efficiency of the entire project was not very high.

After Han Qi arrived, the whole project really entered the fast lane, with the support of strong funds, more than 30 sections, at least 250 large and small parts, fully opened, the entire Lingzhou land, full of the sound of waving shovels.

On the section closest to Xiping Province, this is actually an important trunk channel connecting the Yellow River.

In the northwest of Xiping Province, there are more than a dozen large and small lakes, a huge area composed of swamps, here itself, is a forbidden area, is a forbidden place on the grassland, as long as you pass by here, a little careless, you may fall into it, not to mention people, even animals.

This huge area, with a total area of more than 10 square kilometers, became the core of the entire project at this time.

The maximum depth is more than 12 meters, and most places have the possibility of excavation and expansion, as long as a dozen lakes and tidal flats are turned into one, in this plan, the lake with a depth of more than 10 meters will accommodate 100 million cubic meters, that is, 0.1 cubic kilometers of huge water demand.

It doesn't sound like much, but in fact, it can change the surrounding area dramatically, and the huge amount of water directly replenishes the groundwater, and at the same time, can provide enough water for the surrounding area.

According to the water supply of 200 cubic meters per acre of land, this huge lake alone can support 500,000 mu of land, from ordinary dry land to irrigated land.

The development of Lingzhou cannot be like flour, and it is impossible to sprinkle it in all aspects, and Xiping Mansion must be mentioned in a very important position as the Lingzhou system in the future, and based on such a huge lake, it can lay the foundation for the future of Xiping Mansion.

Even Han Qi attached great importance to such a primary project, and after spending three days and dealing with the entire remaining things, he first went to the construction site for parallax.

As the whole Lingzhou, the most huge, but also the largest amount of earthwork project, such a project uses the most personnel, 100 million cubic meters of water demand, if it is a flat land, directly dig such a huge lake, plus the above embankment to be empty, at least more than 100 million.

But a low-lying place, plus these lakes, saved almost 5 percent, in fact, maybe hundreds of years, or even thousands of years ago, it was a lake, but because of time and geographical changes, this lake disappeared.

However, in the grassland area where there is less precipitation, it is still possible to maintain a small lake, which is a very good foundation in itself.

Lingzhou's approach is to dredge the base of the lake to further increase the water depth and increase the water demand.

The lake needs to be deep enough to hold enough water during the dry season, and it needs to be built relatively high enough to fill the surrounding canals.

Before the advent of electricity and pumping machines, it was very difficult to mobilize water, and traditional canals, that is, relying on natural heights and gravity to work, in the middle, for the location, as well as the direction, the requirements are very high.

This is the first key project, at least more than 10,000 Western Xia prisoners, under the supervision of the army, doing manual work, at the same time, there are at least three or four thousand other personnel, they are densely distributed around.

There are 10,000 people, mighty, looking down from a high place, more than 10,000 people are like ants, these captives, their job is quite simple, is to dig the soil.

Digging is a technical job, obviously not, to put it bluntly, this is a simple repetitive labor, several people in the painted part, excavate the land, and then put the soil on the ox cart, and then pull away, will be transported to different positions of saline-alkali land, for the land to be treated, this is also a comprehensive use of land.

Even if they had never done such a job, as long as the whip and food still made it easy for them to obey, they were able to surrender, and of course they wanted to live.

Many Tangut people in their prime were once part of the Tangut army, and their views on the Northern Song Dynasty were complicated.

There were only a few people in the Western Xia, only a few million people, but several times they attacked the Northern Song Dynasty, using hundreds of thousands of troops, leaving aside women, the elderly, and children, basically the adult Western Xia people had the experience of invading the Northern Song Dynasty.

This is also the fundamental reason why treating them as slaves and not causing any problems, these are all enemies, it would be good if they didn't kill them, and what treatment do they want, even a pedantic minister would not do this, let alone the flexible and ruthless Han Qi.

Of course, Han Qi will not dry up and fish, after Zhao Xin knew the importance of manpower, he also deeply felt the desolation of the northwest, if you rely solely on the population of the northwest itself, it is not enough to support such a huge project.

In this case, if these Tangut people are oppressed too much, and even cause the death and injury of these Tangut people, there is still no way to complete it in the end.

What should I do when the time comes, it will be difficult to pull the Song people over, engage in such heavy labor, enough food, and appropriately reduce the labor intensity, which will become the key to their survival, and improve some labor efficiency.

There is no shortage of food in Lingzhou, in order to prepare for this war before, of course, it is impossible to prepare only on military facilities, food is the key.

Without military equipment, the ability to defend will be somewhat reduced, but it is not insurmountable, but without food, no matter how strong the city defense is, it will be broken.

The fortress is very strong, you let them go without food for three days, or even seven days, and they will starve to death.

At that time, it was for the army of 300,000, and the grain and grass were prepared for almost 6 months, and the army had a large consumption of grain, and the grain and grass that was transported in advance was basically useless in this Northwest War.

That's right, it's useless, the northwest itself has a fixed consumption, this batch of military rations is extra, and now this batch of military rations is just used in this large-scale system project, providing the foundation for these trenches excavated.

These Western Xia slaves, what is even more incredible is that they can not only eat well, but also hold all the iron tools.

The former has not been enjoyed in Western Xia, the conditions of Western Xia are harsh, high latitude and cold, giving them a strong physique, but there is not enough food, the growth rate of meat is low, if a person wants to eat meat, at least three or four hundred catties of meat a year, in this case, how is it possible, sheep to 10 heads, or average to everyone.

Especially in winter, the requirements for heat in the Daxuefeng Mountain are relatively increased, in this case, there is already some scarce meat, it is difficult to eat, all of them are eaten, after eating, what to do in the spring of the next year, how to graze, how to survive.

Eating well is only one aspect, and the other aspect, which is more important, is all ironware, and it is a tool of fine iron.

You must know that there is a shortage of iron in Western Xia, and the price of iron is very high, why the iron harrier is the main force, it is because they have a set of inherited iron armor, but other people, it is good to have an iron spear head, and some second-line troops cannot even guarantee basic iron.

This is also the fundamental reason why the Western Xia, except for elite troops such as Iron Harriers, was at a disadvantage in fighting with the Northern Song Dynasty army.

Even the military does not have enough weapons, let alone civilian use, you know, these tools use a lot of iron.

The shovel consumes the least amount of iron, just a thin iron sheet, but the iron hoe, the iron pickaxe and the like, especially the last one, is more than a foot and a half of the size of the head, and the weight of the simple head is the weight of seven or eight catties.

However, these seemingly wasteful things are still very important for the whole siege, these tools, even on the frozen ground, can easily dig a series of land, so that they can work very quickly, about six or seven hours a day, they can complete the set work and enjoy food.

They also understood why the tyrannical Western Xia did not win the Northern Song Dynasty, and even they themselves had been wiped out, and the slaves and peasants were all holding tools made of fine iron, how could they not win.

They really thought wrong, yes, what they had in their hands was indeed fine iron, and that was because the Daimyo's Mansion provided enough refined iron.

Of course, the refined iron in the consciousness of the Tangut people is only one grade higher than the most basic iron, such as the hardness of 4. 5 or so, lower than steel, but much better than the general iron, this is the sign of the Daimyofu, in the continuous proficiency, and gradually familiar with the premise, the production of the Daimyofu is getting bigger and bigger, at the same time, various, the quality is getting better and better.

These iron materials, which have already been made or obtained, have been processed urgently by the blacksmiths of the military camp, and the quality cannot be compared with that of the Daimyo's Mansion, but in fact, through the order of the Chamber of Commerce, at least 200,000 various fine iron tools are already on the way to be transported, and a batch of other equipment has also been ordered.