Mohist Tang

Mo Dun nodded asked again: “Almost all rivers in Guanzhong are very muddy! But which river is the most serious? The more serious the problem, the more it exposes the problem “

“Weihe!”

Duan Lun said hoarsely.

At this time, all the courtiers are silent. This time it is not dark under the lights, but blind. The Weihe River flows from the edge of Chang’an City every day, which they are most familiar with Everyone knows how muddy the Weihe River is, but they have always turned a blind eye to it.

“The youngster entered the Taiji Hall for the first time, and saw the Civilian Court Official divided on one side, a word immediately appeared in his mind, entirely different.” Mo Dun sighed.

“entirely different? What’s the explanation for this?” Cheng Yaojin asked puzzledly. It was the first time he had heard of this term.

Mo Dun said: “The Jinghe River is a tributary of the Weihe River, but the water in the Jinghe River is exceptionally clear, and the water in the Weihe River is turbid, so at the confluence of the Jinghe River and the Weihe River, a spectacle appeared. The river was half turbid and half clear, and it continued for several li.”

The officials of the Imperial court couldn’t help but blush. This’spectacle’ is very ironic.

“putting it that way, the sediment of the Weihe River flows out from other tributaries above the Jinghe River.” Cheng Yaojin looking thoughtful said.

Mo Dun nodded and said: “Then the question is why there is so much sediment in the upper reaches of the Weihe River! If the sediment problem of the Weihe River can be solved, the problems of other rivers will be solved.”

Li Shimin took a deep breath and said: “Take a map of Guanzhong.”

A huge map of Guanzhong was fully unfolded in the Taiji Hall. Li Shimin looked at Weihe with a gloomy look. Watershed map.

“Black liquid, Bashui, Lacquer, Thousands of water…” Li Shimin’s face became uglier as he looked at it, and the entire Weihe River area was simply too big.

“According to this analysis, the source of the Yellow River’s sediment is in this area.” Li Shimin stretched out his hand and roughly drew the area of the later Loess Plateau.

All the courtiers who were involuntarily nodded, suddenly their faces condensed, and their eyes drifted involuntarily to the forefront of the Imperial court, especially Zhangsun Wuji.

Guanzhong, especially the Loess Plateau, is the sphere of influence of the Guanlong Group, and Zhangsun Wuji is the representative of the Guanlong Group in the Imperial court.

Mo Dun is still unaware of nodded and said: “Yes, now we have to figure out why the soil here is lost so badly.”

This time, all No one answered, and Qin Qiong wanted to dissuade Mo Dun but was stopped by Cheng Yaojin. He opened his bow without turning his head back. Now that he has reached this point, there is nothing left to say. At this time, he flinches and instead lets His Imperial Majesty is not happy.

Duan Lun glanced at Zhangsun Wuji, clenching one’s teeth and said: “This place is full of loess and the soil is loose. Once it encounters rain, the soil will be washed away.”

Mo Dun solemnly nodded, he saw two dense pots outside the Tai Chi Hall, and he had the idea: “This phenomenon is called soil erosion by the Mohist Family. To retain the sediment, one must understand how soil erosion is formed. , Why don’t we do an experiment.”

“Experiment?”

Everyone is familiar with this term. The Mohist Family test field is renowned in Chang’an City.

Mo Dun walked to the potted plants, looked at the huge potted plants, and moved them with force, but the potted plants were completely motionless. At the moment, Mr. Xi was embarrassed and said, “Brother Xi, please help. Move the potted plant on the right to the rain outside.”

Xi Junmai suddenly had a headache one after another. When you move things in the Tai Chi Hall, your youngster is too courageous, and you can’t help but look towards Li Shimin.

“Move!” Li Shimin waved his hand.

Xi Jun bought the order, stepped forward with a little effort, and effortlessly moved the potted plant out in the rain.

“Big brother Xi, break this basin and move it outside in the rain.”

Xi Jun bought a face, Mo Dun has not been to the court several times, he naturally I don’t know, these two potted plants are Li Shimin’s beloved things, and Mo Dun was bold enough to destroy the potted plants.

“It’s folded! If the Yellow River problem can be solved, a potted plant is not enough.” Li Shimin endured the heartache and waved his hand.

Only when Jun Xi bought this, he clenched the teeth ka-cha and broke the potted plant and moved it into the rain.

Because of the heavy rain outside the Tai Chi Hall, the bottom pot of the potted plants was soon filled with water, and Mo Dun asked Xi Jun to move it back to the main hall.

“Your Majesty, please look!” Mo Dun pointed to the rain channel in the two potted plants.

Li Shimin looked at the ruin of his beloved potted plant by Mo Dun and couldn’t help but his face was blue and red, and it took a long time to calm down.

Fortunately, Li Shimin is Mingjun. He resisted the anger in his heart and came to the potted plant. The rainwater under the bottom pot of the potted plant was very clear. The pot that was broken was nothing. The leaves cover, the rain directly washes the soil, and the whole basin bottom is filled with muddy mud water.

Mo Dun said: “This small official once checked history and found that in the pre-Qin period, Guanzhong was densely covered with forests, but at that time the Weihe River was exceptionally clear, only because a large amount of forest was cut down and reclaimed into land. Let the loess be exposed directly, and this will cause soil erosion, just like the broken potted plant in front of you.”

Many ministers were nodded, so it is indeed the cause of deforestation.

Mo Dun sighed and said: “What the people dont know is that more than the soil, and the fertility of the land, will be moved away by the water and soil. When the fertility is lost, the land in Guanzhong will become more and more barren and barren. When the time comes, the grain production will be reduced, and the people will not make ends meet. Then the people will cultivate more land for survival, and then the fertility of the land will be washed away by the rain again. , This will be a vicious circle.

And this small official heard that the upper reaches of the Weihe River has been washed out a lot of gaps as deep as about one zhang, if it is not managed, year after year, the upper reaches of the Weihe River It will become thousands of gutters, fragmented, like cracked pottery. At that time, Guanzhong, once fertile for thousands of miles, will become a history.”

Mo Dun finished in one breath, the whole The Tai Chi Hall was as silent as death.

Guanzhong is the foundation of Great Tang. It can be said that it is the Dragon Vein of Great Tang. It is not an exaggeration. If that time comes, the foundation of Guanzhong will be destroyed.

Mo Dun thinks of the fragmented situation of the Loess Plateau in later generations, like a heart cut. If this era can alleviate the soil erosion of the Loess Plateau, maybe everything is still too late.

“So the people in Guanzhong clearing up wasteland and farming are the ultimate cause of the formation of Yellow River sediment?” Li Shimin said bitterly.

Mo Dun solemnly nodded said: “Buddhism pays attention to cause and effect, but has several points of truth. In fact, many of the bitter fruits of human beings are planted by themselves.”