Hearing Peng Yibin's name, two middle-aged men stood up, one of them was of medium stature, with fair complexion, clear eyebrows and beautiful eyes, and a long beard under the chin, which looked quite chic, and the other was tall and thin, also white-skinned, with a short beard, deep eyes, and looked quite calm.

Among these two, Peng Yicheng is of medium stature, the eldest son of Peng Renguang, and Peng Yibo, who is tall and thin, is the eldest son of Peng Yibin's fourth uncle Peng Renchang, both of whom are the best in the new generation of Pengjiazhai.

After listening to Peng Yibin's order, Peng Yicheng and Peng Yibo glanced at each other, exchanged a look, and Peng Yibo asked: "Village master, you said that Chen Xian's subordinates are all young soldiers, if we use teenagers to trade with him, wouldn't it be equivalent to being an enemy?" ”

Peng Yibin glanced at Peng Yibo, a smile flashed on his face, and said: "The seventh brother is thoughtful, and the filter is very much, of course we can't honestly trade according to the other party's requirements, wait for you to take the person back, the woman will go with her, the man, let's take out the people over fifteen years old and have a strong body, stay in the village to train as a healthy pawn, and send the remaining fourteen-year-old teenagers to him." ”

Peng Yibo praised when he heard this: "The owner of the village is wise, and it is really a clever plan to kill two birds with one stone." ”

Peng Yibin said: "If there is no objection, the two of you can do it." ”

……

More than a month later, Pengjiazhai gathered more than a thousand years of men and women, most of these young men and women were looted from the bottom of the mountain by Peng Yibo and others, and a small number of them were young minions sent by Feihu Village and young camp prostitutes who were ruined and half human and half ghosts.

After some preparations, Peng Yibin left the village with 50 iron horses, 200 soldiers, and 500 minions, escorting men and women of more than 1,000 years.

……

After receiving Yang Miaozhen's 500 minions, Chen Xian immediately set about starting construction of a new Zhuangzi.

Because of the abundance of manpower, Chen Xian planned to build two new Zhuangzi at the same time.

Unlike the sparse vegetation and the massive soil erosion after 800 years, Lushan Mountain today is covered by a large area of primeval forest that has not been set foot by humans, and the water and soil conservation is excellent.

The Yiyuan Plain is surrounded by continuous mountains, and this plain in the middle of the mountains is the lowest place in the vicinity of a hundred miles, and most of the rivers originating in the surrounding mountains converge on this plain.

The fast place where the new Zhuangzi is located is located in the northeast corner of the Yiyuan Plain, which is one of the places with the highest concentration of mountain streams on the Yiyuan Plain.

On both sides of the Beigou River, where the new Zhuangzi is located, within less than two kilometers, there are two other rivers.

Chen Xian wants to build a new Zhuangzi, which is naturally inseparable from the only non-human and animal power source in this era, "water power", so if he wants to build a new Zhuangzi, he naturally wants to build it along the river.

About two miles to the east of the north ditch, there is a river, the people of East Zhuangzi call it Qingya River, it is said that because the river originates in the upstream valley, there is a bluestone cliff, so it is named.

About three miles away in the west of the north ditch, there is another river, the East Zhuangzi people call the Xiangshui River, the valley drop in the upper reaches of this river is larger, the water flow is turbulent, the water is murmuring, the East Zhuangzi people will call the valley that flows out of this is called the Xiangshui Bend, and the river is called the Xiangshui River.

In order to use water power, it is natural to look for places with large water flow differences.

The place where Chen Xian chose to build the new Zhuangzi before was the place with the largest drop on the Beigou River, which poured down from a plateau on the north side, and within the 80 meters of the new Zhuangzi, there was a drop of almost seven or eight meters.

The foundation of the entire East Zhuangzi is tilted, which is the most incomprehensible place for Chen Xian's location, but the situation was delicate at that time, everyone just wanted to build Zhuangzi well, and no one questioned Chen Xian's location without opening their eyes.

The water energy situation of Xiangshui Bend in the west is better than that of Beigou River, its water volume is larger than that of Beigou, and the terrain drop is much larger than that of Beigou, especially in the section of Xiangshui River leaving the mouth of Xiangshui Bend Ditch, within 100 meters, the drop is nearly 30 meters, and the hydraulic resources are extremely rich.

After carefully observing the topography of the mouth of the Xiangshui Bend Ditch, Chen Xian found that if a small reservoir could be built here, it would not only increase the water energy, but also irrigate thousands of acres of fertile land.

However, with Chen Xian's current technology accumulation, building a reservoir is undoubtedly a fool's dream, and he can only let go of this thought.

The mouth of the ditch is a trumpet-shaped slope, the outlet end is about 50 meters wide, after going deep into the mouth of the ditch for more than 100 meters, the width is reduced to more than 30 meters, the Xiangshui River rushes out of the ditch at the foot of the mountain on the east side of the valley, and after flowing into the plain, the water flow slows down rapidly.

Chen Xian planned to build a Zhuangzi about 100 meters away from the mouth of the ditch, and in order to prevent floods, the orientation of the Zhuangzi was not due south and north, but turned at an angle of 45 degrees, and one corner of the Zhuangzi was aligned with the mouth of the ditch, and from this angle of the ditch mouth extended a 30-meter-wide channel leading directly to the mouth of the ditch.

The hydroelectric plant was built on the flare slope of the mouth of the ditch in the north ditch, and the whole plant was triangular, like a wedge wedged into the mouth of the ditch.

Chen Xian planned to build a simple barrage at the top of the horn mouth, and then dig another ditch at the foot of the mountain on the west side to divide the Xiangshui River in two, so that two water wheel lines could be built.

In order to defend against flash floods, Chen Xian planned to build a triangular solid waterproof pier with stones at the north end of the hydroelectric factory, and build two waterproof stone walls two meters wide and three meters high on both sides of the hydraulic factory, and on both sides of the stone wall, a river ditch more than 10 meters wide was created as a channel for the torrent to pour down.

Although the design of this Zhuangzi is a bit risky, once completed, it will have three to five times the water capacity of the current new Zhuangzi Hydroelectric Factory.

Compared with the Xiangshui River, the water energy of the Qingya River is much worse.

Within a few miles of the Qingyagou outlet in the upper reaches of the Qingya River, the terrain is relatively gentle, and after the river water comes out of the ditch, it is also a flat river along the way, flowing slowly, and there is almost no energy storage.

However, after some inspection, Chen Xian still found a breakthrough to solve the problem.

About four or five miles after the Qingya River exited the valley, there was a low mountain beam in front of the river, and here, the Qingya River turned a bend and bypassed the mountain beam through a ravine on the side.

Through investigation, Chen Xian found that if this gully could be blocked, a small reservoir of tens of acres in size and five or six meters deep could be formed on the north side of the mountain beam.

The narrowest part of the ravine is only about 20 meters, and the difficulty and amount of interception are not large.

After forming a small reservoir, it is only necessary to dig a trench in the mountain beam, and several dynamic ditches with a drop of more than twenty meters can be formed.

After some observation, Chen Xian found that if this small reservoir could be built, combined with some ditches, it could also form an irrigation system, which could at least turn thousands or even thousands of acres of land downstream to the south into irrigated land.

After some calculations, Chen Xian decided to build the dam.