Historically, this heavy rain caused waterlogging in many places near Chang'an.

It rained heavily for five days, and Li Shimin came to Jingyang again to ask Li Zheng if Tuguhun would attack.

I was a little scared to be able to predict this heavy rain, and I want to confirm it again this time.

Li Shimin also took a hat and dressed up as an ordinary person, and Fang Xuanling followed all the way.

Li Junxian followed aside, and he didn't know why His Majesty came out in the rain, the weather was warm and cold, what if he was sick with wind cold.

Walking towards Jingyang County, you can see from afar that many villagers are building river embankments.

The water system near Chang'an is developed, and it has the reputation of eight rivers surrounding Chang'an, looking at the situation, Li Shimin asked Fang Xuanling, "Is it just to prevent floods?" ”

The drought in Chang'an had just occurred a few years ago, and the floods had not occurred for several years.

Li Shimin saw Li Zheng, who was also wearing a hat, and stepped forward and said, "Are you asking the villagers to repair the river embankment?" ”

"It's you again." Li Zheng turned around to see him.

Li Shimin smiled, "You said a few days ago that it would rain in Chang'an, but it really rained, how did you calculate it." ”

"It's very simple, there will be some signs before the rain, such as looking at the clouds, feeling the wind, looking at insects and ants, and some old farmers can also see it." Li Zheng said.

After saying this, Li Zheng is also a little weak-hearted, and he should be able to fool the past.

After listening to what Li Zheng said, Li Shimin smiled but didn't believe it very much, some old farmers can indeed see some signs and judge whether it will rain.

But can an old farmer predict a rain for so long?

This kid didn't tell the truth.

Li Shimin was sure in his heart.

Li Shimin asked: "You let the villagers build the river embankment to be afraid of flooding?"

Li Zheng smiled and fell silent.

"I'll ask you." Li Shimin then asked.

Li Zheng cleared his throat and said, "Today's wind is so noisy. ”

Wind? When I asked him about the flood, he said that the wind was noisy?

Looking at Li Zheng's expression, Li Shimin immediately understood, and reluctantly took out a piece of silver cake, "Please also ask the little brother to teach you." ”

"Brother, what are you doing so politely, am I the kind of person who sees money?" Li Zheng quickly took the silver cake.

I've seen shameless, I've never seen such shameless, Li Junxian looked at Li Zheng's face and was furious, and he was about to draw his knife......

"Will there be a flood?" Li Shimin asked again.

Li Zheng whispered to him: "What I want to say next, you must not be afraid. ”

Li Shimin nodded, "Please speak." ”

Li Zheng said in a low voice: "Floods will occur in various parts of Chang'an, flooding crops and waterlogging, resulting in grain failures in many places. ”

"Really?" Li Shimin looked nervous.

"You can't talk nonsense about this kind of thing, if it gets out, maybe the DPRK and the Central Committee will confuse the public with evil words and arrest me."

"How so." Li Shimin smiled awkwardly.

"How could it not, Your Majesty is a ruthless person who can't rub sand in his eyes."

People who can't rub sand in their eyes? Li Shimin thought to himself, is I such a powerful person in the community?

The people are afraid of me, and who else dares to speak the truth?

thinks that they are open to speech, and a few are not flatterers, and a few dare to speak the truth.

After Li Zhenggang finished speaking, he saw Li Shimin's black face, "Huh? Dude, why is your face dark. ”

Li Shimin regained his expression, "Why do you say that there will be floods in Chang'an?" ”

"You don't even believe you."

Li Zheng said and took him to the Jingyang River, pointed to the turbulent river and said, "You see that the river is very turbid, right?" ”

"What's the truth?" Li Shimin was puzzled.

"The turbidity of the river means that there is a lot of silt in the riverbed underwater, and the more silt, the higher the riverbed, and the less space there is for water to flow."

Li Shimin shook his head and said that he didn't understand very much.

For the sake of his payment, Li Zheng found a puddle, threw down a stone and said, "Look if the water is overflowing now." ”

"If the mud is washed downstream, it will suffer downstream." Li Zheng said again.

After listening to Li Zheng's words, Li Shimin stared at the stone placed in the puddle and immediately understood the reason.

The more silt there is, the higher the riverbed, and over the years, the silt has accumulated downstream.

In fact, over the years, the bed of the Jingyang River has become higher and higher, and the space for water energy flow is small, and it will naturally overflow the embankment, coupled with the heavy rain now.

"You go upstream and have a look." Li Shimin instructed Li Junxian.

"But......" Li Junxian wanted to stay to protect His Majesty, and when he came out, he didn't bring any guards.

"Tell you to go, and you go." Li Shimin shouted.

Li Junxian left in a panic to see the situation upstream

Li Shimin turned his head and asked again: "Before, you said that Tuyuhun is a wolf, will Tuyuhun come to attack the Tang Dynasty?" ”

"Yes." Li Zheng nodded.

"How so?" Li Shimin asked.

Li Zheng smiled slightly and stopped talking.

Li Shimin took out another piece of silver cake.

Calmly accepted the silver cake Li Zheng said: "You see if they will pay tribute to the Tang Dynasty this year, and then you go to explore Tubo behind Tuyuhun, you will understand." ”

Li Shimin fell silent and thought about Li Zheng's words.

Li Zheng finished speaking and left.

Li Shimin stood in place and looked at Fang Xuanling.

After Li Junxian came back, he reported: "Your Majesty, there are already signs of river backflow in many places upstream, and it is okay now, but if the rain is still falling, I am afraid it will be ......."

Li Shimin looked at the banks of the river, and the farmers of Chang'an have always surrounded the lake to create fields, and the grain is planted by the river.

If the river is flooded, how much food will be destroyed?

Li Shimin hurriedly returned to Chang'an, and when he came to the palace, he immediately asked people to investigate the situation of the river.

After some investigation, as Li Zheng said, not only Jingyang but also Weishui north of Chang'an, Ba Shang Ba Shui, Chan Shui......

These rivers are all populous counties along their paths.

Li Shimin immediately issued an edict that all counties and counties around Chang'an for dozens of miles should build river embankments to prevent floods.

Chang'an City is also prepared for drainage to avoid waterlogging.

Dozens of officials left Chang'an on horseback with hats and headed towards all sides.

The eldest grandson Wuji knows about this, will there be flooding in Chang'an?

It's not surprising if it's a rainy summer.

But now that it's spring, it won't rain so much, and even if it rains, it should stop in a few days.

"Your Majesty, you shouldn't be so laborious." The eldest grandson Wuji sighed: "How much manpower will be used to build the river embankment in this way, the rivers around Chang'an are thousands of miles, Your Majesty is inevitably a little too much, listening to the wind is the rain." ”

"Zhao Guogong means ......," several county officials asked Xiang Eldest Sun Wuji.

These county officials are all county officials of the fiefdom of the eldest grandson's family, and the eldest grandson's family is their biggest landlord, although they are considered courtiers, but they also involve their own territory, it still depends on the face of the eldest grandson's family.

The eldest grandson Wuji said in a low voice: "Although Your Majesty says that you want to build a river embankment, you will do it, but don't work too hard. ”

"Understood." Several county officials nodded.