Huge lakes have many advantages, but the disadvantages are also obvious.

Excavating lakes requires an extremely large investment of labor, and the cycle is as long as several years. In this process, it will inevitably affect the development of other projects in the territory.

Moreover, in the process of excavation and filling, part of the cultivated land will be occupied and cannot be planted, and the cultivation of lake aquatic resources will also take time.

In general, the replacement of seemingly equal resources is actually quite uneconomical.

So this second option may not be feasible.

"My lord, is there a third?"

Ruvid asked after listening to Master Odin's two ways.

"This third...is to build a big dam!"

"Water...dam?"

"Yes, it's a dam!"

Master Odin is heavily nodded.

In fact, the purpose of the dam is to dig a giant lake, but the method is different.

According to the topography of the gravel ridge, it is very suitable for building a dam. You only need to build a high dam wall at the valley where the river water flows out of the gravel ridge to intercept the river water in the mountains. , Forming a reservoir.

The lofty mountains deep in the gravel ridge are the best enclosures. The reservoir can hold a much larger amount of water than the dug lake, and it can also actively control the water flow to adjust the size.

In this way, the flood can be overcome once and for all.

……

"My lord, is this really feasible? Putting water in the mountain makes the subordinates feel a little flustered, or let's dig it ourselves."

Ruvid followed Odin step by step, walking among the gravel ridge valleys, still chattering.

"What are you panicking, just decorate the water, install it where you don’t! Dig it yourself? Have you ever thought about how many people you need? How long do you need to dig?"

"But... ten thousand As soon as you said that the dam was not blocked, the water rushed out..."

Ruvid panicked when he thought of such a horrible scene. He really didn’t understand why Sir Lord could come up with such a horror. Way to solve the problem.

This valley is between two mountains, neither wide nor narrow.

Except for the stone beach washed by the water, other places are covered by dense vegetation, which is a typical river valley landform.

Odin goes all the way up the southern ridge, opening the light screen map from time to time for comparison.

Although he is a layman, even a fool knows how technically it is to build a dam, so he must personally grasp this project!

Soon, Odin looked at the highest point of the South Mountain Range. The map showed an altitude of 1443 meters.

The Beiling opposite to him is Beishiling No. 1 Mountain. The highest point of the ridge is 1189 meters. Although it is a little shorter than this side, this height is definitely sufficient.

When the time comes to connect the two ridges with the dam body, the river can be blocked inside, at least the most critical part is okay.

Ruvid gestured up and down with his hands.

"My lord, if we stop here, wouldn't we be able to get a lake thousands of meters deep!

Oh! Build an ocean on the ground! It's Divine Vestige! Oh no! Even Divine Vestige is incomparable!

You are a great god! God of creation!"

"Poor worm who has never seen the world."

Odin looked at Ruvid as if crazy, shook his head and sighed.

The internal trend of the mountain is more complicated than Odin expected. He needs to spend more time to determine the specific scope of the reservoir, which is a big problem.

The omission of any gap will cause serious consequences.

hong long long ~

Not far from Odin, Dag’s silhouette is faintly discernible. It is estimated that such a violent noise was caused by accidentally entering the territory of other demonic beasts, and then fighting. NS.

The two ignored them and continued to walk forward and watch.

Observing the direction of the mountains and ridges cannot be completed in a day or two. After confirming that the most important valley areas are okay, Master Odin took Ruvid and left.

At the same time, he also arranged a preparatory work for Ruvid to arrange a logging team to clean the woods in the valley to facilitate subsequent construction.

In the next week, Master Odin everyday all will take Xiaohei to the gravel ridge to explore the terrain and mark the reservoir area that has been determined.

Another kind of mark is placed between the gaps in the mountains that are not needed, which means that when the time comes, this place will be sealed to ensure that the water will not leak out.

One week later, Master Odin finally drew a bird's-eye view of the reservoir with a total area of ​​2,000 square kilometers.

At first glance, the shape of the reservoir is very strange. If the black iron river is the boundary, 90% of the reservoir area is in the Nanshiling area to the south of the river.

The Beishiling area is only a little bit.

The reason for this is that, in addition to the trend of the mountain itself, more subjective factors are influencing it.

Because Beishiling is currently the largest resource acquisition place for the Boulder Neck, the demonic beast materials and iron ore are all here, and every point of resource encroachment is one point less.

So he did his best to put the reservoir in the undeveloped South Stone Ridge area.

On the entire reservoir map, in addition to the location of the River Valley Master Dam, there are eleven fully enclosed sluices.

These dam sluices surround this unprecedentedly large man-made lake tightly.

Now that the dam plan is drawn up, Master Odin can't help but wonder whether it has deviated from the original purpose, because the amount of work is simply not too big.

Of course, construction still needs to be built, but it can be done in a phased approach.

So Master Odin worked hard for four or five days and added six small and medium sluices to the reservoir.

Their function is to divide the two thousand square kilometers of water into three stages of water storage.

1st Stage, the water surface is 300 meters above sea level and covers an area of ​​200 square kilometers. It requires two small sluice gates.

2nd Stage, the water surface is 500 meters above sea level and covers an area of ​​800 square kilometers. It requires four medium-sized sluices. (Including the area of ​​1st Stage)

3rd Stage, the water surface is one thousand meters above sea level and covers an area of ​​two thousand square kilometers, which requires 11 large sluice gates. (Including all the areas of the first and 2nd stage)

Although it looks like there are more sluices built as a whole, but dividing such a large project into three to complete it, the time will not be so tight, and it will be built. On the contrary, it is much easier.

I was busy half a month, and the general process of building the reservoir was thus figured out by Master Odin.

As for the new reservoir environment, will it have a negative impact on the ecology of the gravel ridge?

Will there be sedimentation under the reservoir?

Where are the Earth Demon beasts who originally lived in this area?

What if there is a demonic beast to destroy the dam body?

Sorry, Master Odin’s brain cells are dead, and he has no energy to go one after another to investigate these issues.

As the saying goes, fire comes to water to cover, water comes to cover.

The most urgent task is to completely fix the 1st Stage of the dam before the beginning of winter this year, and save the fertile land of 1,800 rams in the Boulder Leader!

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