Fengyun looked at the earthy yellow water flowing into the draught river and explained: "This is all the fertile soil that has been carried down from the upstream! The sediment sedimentation rate in the river is inversely proportional to the water flow speed, and the gentle beach here has lowered the flow of the river and the sediment has begun to settle, but the terrain under the natural river channel is still relatively complicated, otherwise Li Ma would not have caught the stones." On the contrary, the draught river channel you have dug artificially is much smoother, which is supposed to make the water clear, and the sediment that has accumulated and settled also provides rich nutrients for aquatic plants, and the fish are naturally willing to run here. ”

Li Ma was puzzled and asked, "Then why can't I catch fish when I cast a net in the big river? This is not far away?"

Fengyun smiled: "Who said you didn't catch it? Didn't you catch eight fish?"

"How many fish are there?" Li Ma said with a smile: "It's not comparable to the one in the water mouth!"

"That's a lot, isn't it?" Fengyun asked, "If I'm not mistaken, you should catch more fish in this shoal than you do in other places, right?"

"Hey! really!" Li Ma said: "There are many shoal pigs and dragons, and I am not a witch war, so I usually don't run here, and I usually go downstream to cast my nets, and there is a dirt slope there, I can stand on it and cast my nets, and the pigs and dragons can't come up." ”

Fengyun nodded and said: "The shallows are fine and there are many turbulent stones, you must know that no matter what race you are, after all, you still have to eat, drink, and pop, the water flow slows down, and the sediment will precipitate, and with the soil, the aquatic plants will grow, and the aquatic plants will flourish, so as to attract fish to eat and reproduce here." Naturally, there are fish in the big rivers, but the current is fast, and the fish are all at the bottom, avoiding the rapids in the upper layers and the big ones foraging. Therefore, the fish that fight the rapids in the big river are leaner and the meat will be firmer. And the fish in the draught river are rich in food, and the natural predators are unable to stop them by your stakes, and the natural population grows, and the size is larger, and the meat will be fatter and tenderer. ”

Everyone has grown up to talk, which is too mysterious, right?

Li Ma hurriedly picked out the fish that had been netted back from the big river, compared them with the fish in the draft river, and quickly carried the fish and laughed: "It's amazing! You even know this? Really! The fish in the draft river are fatter than the fish in the big river!"

Li Dahe asked on the side: "Then I can't figure it out, then why didn't these fish swim down the draft river to the city? Then we won't have endless fish?"

Fengyun smiled and said: "This is what we are going to do next, first of all, let me tell you why, there is a saying that when the water is clear, there are no fish, and the river channel of the draft river is very gentle, so the sediment is almost precipitated in the upper half." This is also your purpose, after all, you drink water into the city to drink, not to raise fish. Even if some of them occasionally run over, they are all caught and eaten by you, so naturally you can't find out. But the main reason is that the river was dug in so short a short time, I guess, it shouldn't be more than ten years, right?"

"Huh?" Jiang Xiang said in surprise: "This river was dug two years before Yuan'er was born, and it is exactly nine years old this year, how do you know?"

"A relatively stable ecosystem needs to be maintained for at least 10 years, and the fish need to discover this natural haven to thrive and form the habit of spawning here every year, and the time is too short. The main thing is that if it takes a long time and the aquatic plants grow down the river, you don't need to say that you will find the fish yourself. ”

"I'm convinced!" Li Dahe shook his head and sighed, "Why do I feel so stupid?"

"Why, did you think you were pretty good?" the rest of the crowd laughed and joked at him.

Fengyun smiled: "It's nothing, as long as you look at it and think about it, you will always think of it, to put it bluntly, it's luck." Even if it weren't for me, maybe Uncle Li Ma would have found out one day by casting a few nets along the river? In comparison, I admire the people who dug this river and the people who thought of digging it. ”

Li Ma smiled: "That's the big witch grandma and the patriarch, at first we all scooped water directly from the big river to transport it back, and then the big witch grandmother sympathized with us, and specially asked the patriarch to mobilize the witch war to spend a long time digging this draft river, we only ate water in the city, but unfortunately the good draft river is now ruined by the Yi people of the dog day." ”

Speaking of the second half of the conflict, Fengyun diverted the topic and said: "There are not many fish in this draft river now, mainly because there are not enough aquatic plants. If you want to gather a large number of fish, you need to transplant aquatic plants and improve the fertility of the water quality. ”

"How?" asked Li Yuan, who had been listening for a long time.

Fengyun lowered his head and glanced at the aquatic plants that Li Ma fished up and said: "It's very simple, I see that these are some very solid aquatic plants, of course, the ones that are not solid will die early, just fish up the aquatic plants and throw them at the back section of the river, and you can also shovel the turf." As for improving water quality, it is also very simple, clear the bottom of the river before laying water grass, dig out the slope, speed up the water flow, and don't let the sediment settle so quickly. ”

"But, then the water will be muddy, how can you drink it?" Jiang Xiang asked suspiciously: "At the beginning, we tried for a long time to dig up the river like today, but in order to attract fish, the water was muddy, is it possible that the people of the tribe have to wait for half a day to clarify the saliva before drinking?" I think it's inappropriate." ”

Fengyun nodded and said, "That's right, the water quality will become turbid, but we don't need to drink the water inside?"

Li Ma asked, "Then where do you drink the water? Do you still have to go to the river to scoop water with a stone basin like before? That is too slow, if you run into a pig dragon, you will die." ”

Now it was Fengyun's turn to be confused, and he asked puzzledly, "Why don't you dig a well?"

"Well, what is that?" Li Ma and the others looked at a loss.

"Li Bian, do you have a shovel?" Fengyun asked.

"Brought it. Li Bian took advantage of the sharpened copper shovel from his waist and swung it twice. Ever since he got his hands on the tools, he couldn't wait to sleep with those saws, and he would take one or two with him wherever he went. The copper shovel is something he carries with him at any time, without him, because it is too convenient to dig stones.

Fengyun raised his chin and said, "You dig a pit under your feet, and then stop when you see the water." ”

"Hey!" Li Bian answered, lowered his head and dug up, only to see the soil flying, and after a while, a pit more than one meter deep was dug.

"It's out of the water. Li Bian straightened up, his calves already sinking into the mud.

Seeing this situation, Li Ma said: "Of course there will be water by this river, can it seep over, Chiyou City is far away! Ten miles away, this bit of river water can't seep through!"

"Who said that?" Fengyun smiled: "You dig along the draft river, I guarantee you have water." ”

Jiang Xiang suddenly said: "I remember, this well is water in the stone, right? I heard that there is a Xiong Guo Ji Xuanyuan will take water from the stone, it turns out that this method is used." ”

Fengyun nodded and smiled: "Many methods are not uncommon once they are opened, if the river is dug, you can release the sluice to attract fish, that is, in the big river, from the back of the water inlet, a row of piles will be planted diagonally, just like you planted." Don't try to seal the river, just change the direction of the water flow slightly, so that the water flow is more like the inlet, if the aquatic plants grow denser, the fish will naturally follow. When the time comes......"

"Then we will have endless fish!" Li Dahe on the side said, everyone laughed and laughed, obviously very happy with the news.

It's just that Fengyun found that Li Yan and Jiang Xiang were not as happy as the clansmen, but lowered their heads and were thinking about something.

The balls squeezed under the elbows of the adults didn't wait for the opportunity to go into the water to show their strength, but they also caught the fish. He was a little puzzled when he heard the laughter of the adults, so he leaned over to Fengyun and asked loudly, "But Brother Yun, how did you know that those fish would come by themselves?"

Fengyun smiled approvingly, and said pointedly: "Because fish, like people, prefer calm and stable days." ”

"That's right!" Li Ma put away the fishing net line one by one, and said with a smile: "If there is something to eat, then it would be good! Don't worry about food, you want to work and work, you want to eat, tsk! That is simply the life of the gods! To say, if there is no food to eat, who wants to fight...... Oops......"

Li Dahe, who was standing beside him, suddenly heard wrong, and quickly smashed him with his elbow, Li Ma was in pain, reacted, and closed his mouth in embarrassment.

I said it far-fetched for a long time, but after all, it was for this sentence. Fengyun raised his eyes to look at Li Greed, but saw that his face was already sinking like water, and everyone who was laughing quieted down.

Taking a deep breath, Li Yan said, "Let's go back with your things first!" Li Ma resisted the soaked fishing net and followed the others.

Sitting in a wheelchair, Fengyun sighed, feeling a little powerless. Jiang Xiang slowly walked to his side and said, "You are a little excessive. ”

"Am I excessive?" Fengyun said irritably: "What am I for? I don't want to save his life? Why do I have to send troops to the west to beg for it? Give me three years, and I will let everyone of the Li nationality have enough to eat and wear warm clothes, isn't this enough? I used this method of spending more than ten days to solve the food problem that gave him a headache, why can't I get his nod? Is it that the war is so heavy on him?"

"Why do you have to change?" Jiang Xiang asked rhetorically: "Have we ever asked for anything in return for our kindness to you?" Greedy told me, you asked him a question, you said that if you were not the one who could save the Li people, would he still treat you as a Li people? He didn't answer you, I will answer you, what do you think you are now? You failed to recognize our ancestors and return to our ancestors, so that we lost the heart of our ancestors, have we said a word about you? Why do we call you Li Yun? Your current identity is a Li person, but you yourself don't think of yourself as a Li person!"

Fengyun was stunned and opened his mouth, but he didn't speak.

Jiang Xiang continued: "The method you said is a good method, but there is still something wrong, driving so many scale clans into the draft river for us to eat, have you ever thought about how the scale clan spirit veins will deal with it? Now that the demon invasion is imminent, we need to make alliances." The last time Greedy Er went out to look for Kuafu's country, he had already had a bad relationship with the king of the scale tribe, and if he slaughtered the scale tribe like this again, it would undoubtedly be even more difficult to gain the support of the scale tribe. ”

But he didn't expect this, at this moment, his heart was in turmoil, looking at the fish that jumped out of the water from time to time without saying a word.

Jiang Xiang sighed and said: "I know you want to help the greedy child, but his luck is gone, just like this boiling river, it can be moved, but it can't be blocked, and it is its fate that the east flows into the sea, and no one can change it." ”

Fengyun closed his eyes helplessly, sighed and asked, "Is there no other way?"

"Find a way. Jiang Xiang said: "Even if there is a glimmer of life, we will not give up, don't worry, if you really fight, my Li people have not been afraid of anyone, and the same is true of the demon clan!"

Jiang Xiang's words were loud, but Fengyun couldn't relax, looking up, he seemed to feel that the world was spinning, like a huge storm roaring, but why was he caught in the center of this storm?

I really wish he had never met Li Greed! In that case, he might still be working at sunrise and sunset in the Peach Blossom Garden!

However, there is no going back.

Fengyun looked down at the soft and crooked body, and smiled bitterly, he had tried his best, but, how much could he help with him like this?

"Let's go back first......" Fengyun's voice was a little tired, Li Bian said hello to Jiang Xiang in response, and pushed him towards the city.

Jiang Xiang stayed in place, looking at the boiling river, his eyes were complicated, and Li Chou served motionlessly beside her, like a solemn stone statue.

Looking back at the direction of Fengyun's departure, Jiang Xiang narrowed his eyes, but Fengyun, who was paralyzed in a wheelchair, was like a black hole in his eyes. Out of the city, the signs of his absorption of luck were even more obvious, and in the direction of Chiyou City in the distance, there was a rolling luck like a rushing river surging towards him. There are also eight faint breaths of luck floating in all directions, blending into Fengyun, which is the luck of the witch guards in the eight towns, and they are also attracted by him.

The creaking wheelchair seemed to be a storm, greedily absorbing the luck of all the Li people, Jiang Xiang's fists behind his back slowly clenched. She had a bold idea in her heart that she had never mentioned to others, and at the moment she was surrounded by no one, she muttered: Come on, come on, the Li people will not be destroyed, what about the luck number? I'm afraid you can't protect yourself now! I'm old! However, the Li people are still young, and we won't be extinct, we won't be extinct...... r

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