In ancient times, the Yellow River was not called the Yellow River. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 The Yellow River is called "River" in the oldest Chinese character book "Shuowen Jie Zi", the oldest geography book "Classic of Mountains and Seas" calls the Yellow River "River Water", "Shanghe" in "Notes on the Book of Water", "China River" in "Hanshu and Western Regions Biography", "Nine Rivers" in "Shangshu", and "Great River" in "Historical Records". In the Western Han Dynasty, due to the increasing sediment content in the river, some people began to call it "Turbid River" or "Yellow River", but it was not universally recognized. It was not until the time of the previous dynasty that the title of the Yellow River was recognized.

For Lu Chengqi to say this, Li Jie couldn't refute it, so he had to nod.

Seeing this, Lu Chengqi continued to draw, focusing on the area where the Yellow River flows through the Loess Plateau, and then said: "I believe that the reason why the Yellow River is mixed with a lot of sediment is because for thousands of years, under my feet, the Shaanxi Road under Li Qing's feet, the evil results caused by the continuous cutting down of trees!" ”

As soon as these words came out, Li Jie looked at Lu Chengqi dumbfounded, unable to believe it. The ancients understood the great role of trees, which in their view were just a material, which could be used in construction, furniture, and shipbuilding.

Li Jie said in disbelief: "Your Majesty, the minister does not dare to agree, since the ancient sages have taught that Qiaocun Yupu, cutting wood for cooking has been around since ancient times, how could it become the culprit of the Yellow River breach?" ”

Lu Chengqi said in a deep voice: "Let me ask you, can the roots of trees firm the soil? ”

Li Jie didn't have this understanding, but after thinking about it carefully, he nodded in agreement. Trees can grasp the soil on the surface, even the ancients knew it.

"Moreover, since the Qin Dynasty, the construction of Afang Palace and the tomb of Qin Shi Huang has all come from Qin?"

This is an indisputable fact, and the ancients also knew how to use ready-made materials according to local conditions, so would they go to other places and transport wood to build it? Li Jie couldn't refute it, so he could only wait for Lu Chengqi to follow: "After the Qin Dynasty, the Western Han Dynasty also set the capital of Chang'an, the previous dynasty also set the capital of Chang'an, and the current dynasty also set the capital of Chang'an. Whether the residents build houses or palaces, they all use Qindi trees? ”

Li Jie nodded again, this is also a fact.

When Lu Chengqi said this, he sighed: "The dynasties have changed so frequently, the wars have continued, and the houses have been damaged. After rebuilding, Qindi wood will also be used. I have calculated that it takes at least 20 years for a tree to grow from seedling to maturity. Li Qing is a builder, can you talk about how much wood is needed to build a palace? ”

Li Jie thought for a while and gave an astonishing figure: "Your Majesty, if it is like the palace of my dynasty, the wood used is not under 500,000 wood. ”

Lu Chengqi smiled bitterly: "Yes, 500,000 yuan, this is just the palace." The rest of the people's houses and so on are used in countless quantities. The forest of Qindi is geometric, can it withstand such a ravage? On weekdays, there are countless woodcutters for firewood. Li Qing calculated, even if there were tens of millions of timber in Qindi, how long would it last if it was consumed like this? If my prediction is right, if it is not protected, after a hundred years, Qin Land will become a loess wasteland! Since ancient times, Shaanxi Road is the birthplace of the descendants of Yan and Huang, Xia, Zhou, Qin, Han, the former dynasty, and the current dynasty all built their capitals here, and the wood consumed is more than 10 million! The highlands of Qindi are mostly yellow mud and sand, and without trees, how can these yellow mud and sand not rush into the Yellow River? ”

Li Jie was shocked by Lu Chengqi's novel statement, the ancients never thought about the issue of protecting the environment. As the population grows and there is no food to eat, where will the consequences of deforestation be taken into account?

You must know that in ancient records, the natural environment of the Loess Plateau before the time was much better than now. At that time, dense forests grew in the mountains, and the trees ranged from conifers such as pines and cypresses to large broad-leaved trees, and dense forests of broad-leaved trees grew in the valleys. On the Loess Plateau and Loess Hills and Ravines, which are formed by the accumulation of thick layers of loess, there are not only large trees, but also small trees and many kinds of shrubs. Shrubs grow in patches. There is also a large area of natural grassland with lush herbaceous plants. In this ecological environment, there are many kinds of herbivores, including herds of wild deer, wild sheep, countless hares, and large carnivores such as tigers, leopards, and bears. The Chinese civilization has also developed from such a rich land, from a small tribe, to the current scale.

However, the terrain of Qindi is dangerous, and most of the founding ancestors considered this place as the capital. The capital is a place where politics, culture, military and economy are integrated, and the population will naturally skyrocket. With a large population, deforestation and land reclamation are not a problem, all in order to fill the stomach.

Over time, it has become an unstoppable Yellow River like a beast out of the cage.

Lu Chengqi sighed: "If you want to control the Yellow River, you must not only start from the Yellow River, but also start from the roots. Li Qing, for the sake of the Han people and the people in the Yellow River Valley, planting trees everywhere is fundamental! ”

Li Jie thought carefully about Lu Chengqi's words and found that this was really a wise saying. Taoism once said, the law of heaven is the way, and the law of the Tao is natural. What is nature is the law between heaven and earth! In order to survive, people destroy the environment, which is to destroy the law, and God's punishment will be fulfilled on the Yellow River.

Li Jie figured this out and sighed: "What Your Majesty thinks will benefit all eternity!" ”

Lu Chengqi also felt it: "It is far from enough to rely on you and me. I plan to draft a decree for the "Dashun Minbao", the matter of the Yellow River will benefit the future, if it is not governed, it will harm the descendants! As the Son of Heaven, I naturally have to do the deeds of the Son of Heaven. Li Qing, are you willing to help me? ”

Li Jie stubbornly said: "The minister can manage the Yellow River and plant trees extensively, but he does not approve of digging a canal." ”

Lu Chengqi was a little annoyed, after he was reborn as an emperor, no one dared to talk to him like this, Li Jie was the first person! But after thinking about it, Li Jie's this is abiding by his golden mean, which is also commendable.

Thinking of this, Lu Chengqi enlightened him and said, "Li Qing, I don't need you to dig the canal all at once. If all of them are chiseled, the treasury will not have this money, and I also know that Dashun's national strength is not enough to support it for a long time. But the five million guan I allocated to Li Qing is enough to dig through a few dredged waterways. I don't limit Li Qing when you will finish, don't you say? ”

Li Jie's thought about it, and this is also the truth. If Lu Chengqi was greedy, the extensive conscription could indeed dig all the canals in a very short time. But if you do this, a large number of heaven and earth will be abandoned, resulting in a shortage of food. When the people had no food to eat, they would naturally rise up and rebel. In the chaotic times at the end of the Sui Dynasty, it will definitely appear again. If Li Jie knew who Emperor Yang of Sui was, he would definitely denounce him for being a faint monarch.

Li Jie said cautiously: "It will take some time for the minister to be sure that this can be done, and I hope Your Majesty will forgive me." (To be continued.) )