The first step in land reclamation work is to build an irrigation system.

Ye Qing’s plan was to build an artificial river ten meters wide.

This artificial river leads directly to the sandbank where the tribe is located from the brick and tile field, and is about seven or eight miles long.

Through this artificial river, the water from the reservoir is directed to the tribe.

Then, a square river channel with a side length of 4 miles is built around the sandbank where the tribe is located.

When the two are connected, a complete irrigation system is formed.

Although the current river ditch water network can also be irrigated, irrigation requires water extraction, which will waste a lot of manpower. Even if you use a water truck, manpower will be inevitable.

Therefore, the water level of the irrigation system must be higher than that of the rice fields.

During irrigation, open the gate and release the water, and the water will automatically flow into the rice fields, saving time and effort.

Ye Qing also calculated the project volume when building such an irrigation system.

The height of the planned river embankment is two meters, the top is 4 meters, the bottom is 8 meters wide, and the length is 8 miles. There are two river embankments, which is 16 miles long.

The amount of earthwork is nearly 100,000 cubic meters.

The construction of the circular river channel surrounding the sandbank adopts the same standards.

Although the total length of the circular river channel is twice that of an artificial river, the circular river channel only needs to build a river embankment on the outside, and the terrain of a higher sandbar on the inside does not need to build a river embankment.

Therefore, the amount of soil is about 100,000 cubic meters.

Then the total amount of soil is 200,000 cubic meters.

How long is the construction period?

The construction of river embankments is completely different from the construction of dams.

In order to be strong, the dam must be made of loess and tamped.

The requirements for river embankments do not need to be that high, so the construction method is much simpler.

There is no need to tamp the river bank at all.

When building, use the semi-dry sludge directly, cut the semi-dry sludge into pieces, and then stack neatly on both sides of the river.

When stacking, use your feet to step on the sludge, step flat and firmly, so that the sludge can be bonded tightly and stick together.

After doing it, it will be a perfect river bank.

Don't worry about solidity.

When building, a layer of marsh mud and a layer of hay will be piled up, and the strength of the river embankment will be completely sufficient.

The use of sludge is also very convenient.

This is the dry season, and most of the swamps and puddles have dried up, and there are more semi-dry swamp mud and can be used everywhere.

This irrigation system is not entirely a new plant. This area has dense river ditches and water networks, and there are extremely many natural river channels that can be borrowed.

With these natural river channels, there are very few places that need to be excavated.

Basically no digging is required.

Even if the tidal flats that are higher than other rivers are built on both sides, they will become river channels.

Although this river is a little shallow, it will not be a big deal for the future water level of the artificial river.

There are very few such places, and even if you dig a little deeper, it will not take much time.

This greatly reduces the project volume.

Overall, the entire irrigation system will only last for more than twenty days, not a month.

After this irrigation system is repaired, it will have a great effect.

In terms of irrigation, it can be said to be a one-time solution.

The amount of water stored in the upstream reservoir is almost unlimited for the tribe's water use.

No matter how drought is, the amount of water irrigated by a tribe of a few thousand acres of paddy fields will never be lacking.

Therefore, there is no need to worry about drought.

There is no need to worry about flooding like last year.

The cultivated paddy fields are all located around the sandbank.

This is the highest terrain except for the sandbank, and no matter how big the flood is, it cannot be flooded here.

On the other hand, this irrigation system has an extremely huge role in transportation and transportation.

An artificial river channel is a high-speed water channel.

The brick making field at the foot of the dam will be the processing center of the tribe and the power center of the tribe.

Such a place naturally needs to be closely linked to the tribe headquarters.

This artificial river channel is a link between the two.

In the future, the transportation between the brick making yard and the tribe will definitely be extremely busy, and the transportation volume will be extremely large.

The fired bricks and tiles in the brick and tile yard, the sawmill sawn wooden boards, the stone processed in the quarry, and the wood and bamboo cut from the mountain, all need to be transported back to the tribe.

This artificial river channel is undoubtedly the best transportation channel.

When the ship was built, there must be ships coming and going on this artificial river, and it was a busy scene.

The two river embankments of the artificial river channel also have great effect.

These are the two highways.

With these two flat and straight highways, the contact between personnel and ox carts is not a problem at all, and it is extremely safe and fast.

In order to prevent river water from eroding the river embankment, in the future, a large number of willow trees will be planted on the river embankments on both sides of the artificial river to protect the embankment.

After the willow trees grow, the two river embankments are two tree-lined avenues.

Walking on such a river bank, I feel just one word, beautiful!

This artificial river channel is a major artery, closely linking the brick making field and the tribe.

The tribe's circular river channel surrounding the sandbank is quite effective.

After filling up with water, this is the moat.

In the future, a circle of city walls will be built along the inner side of the circular river channel to circle the entire sandbank.

The tribe's residence has become the only city in this era.

People live in the city and farm outside the city.

If an enemy attacks, how can I stand by the city gate?

If enough food is stored in the city, it can be said that there is no solution in this era.

With an irrigation system, the rice fields are completely unsatisfactory.

The swamps and mudflats around the sandbank can be cultivated into rice fields anywhere. There is no need to carefully select the location of rice fields because of the problem of water use in rice fields, just like before.

Therefore, when reclaiming new fields, the principle of proximity is adopted.

Of course, the closer the rice fields are to the tribe, the better.

Close distance, convenient, save manpower and time.

The new land that needs to be reclaimed is 4,600 acres in total.

How big is this area?

That is, the area of ​​a square with a side length of less than 5 miles is not much larger than the area of ​​the sandbar where the tribe is located.

The reclamation location of the rice fields is on the periphery of the circular river channel.

The annular area formed from the annular river channel is the area to be reclaimed in the planned area.

Its area is enough to reclaim 4,600 acres of rice fields, and there are still many more.

The extra parts will not be empty either, so Ye Qing is preparing to dig some ponds.

It is also very convenient to dig a pond.

If you transform some rivers and puddles slightly, you will be the pond.

Ponds are used to raise fish.

How can fish be missing in the land of fish and rice?

Although there are countless fish in Lei Ze, fishing depends on the weather and can be safe from raising fish in the pond.

Anyway, it doesn’t take much effort to adopt extensive breeding.

Put some small fish into the pond, cut some grass and throw it in when you are free. When you are busy, it’s okay to ask.

When there is enough food, don’t worry. When there is food shortage, these fish are just the food they have accumulated.

In this way, the tribe's food source can have another way.

Food safety is even more secure.
Chapter completed!