Daming Yuanfu

Chapter 55 The Yongding River Troubled (Part [-])
Gao Yushi quietly listened to Zhang Jin's report of Zhang Siwei's investigation results back then, and he had a better understanding of the ambition and ability of his cheap uncle, and only then interrupted Zhang Jin's conversation slightly: "The flood control dam has been repaired. After all these years, is there any effect? ​​Or, what is the effect?"

Zhang Jin said with a wry smile: "The effect is there. At least the floods of the Yongding River in this dynasty are not as frequent as they were in the Yuan Dynasty. The master has done a detailed investigation on this, and said that in the 98 years of Xiangguo in the Yuan Dynasty, the Yongding River was flooded 22 times. It has been more than [-] years since my Ming Dynasty, and the Yongding River has been flooded [-] times. From this point of view, our governance is still effective."

"Then why do you have such an expression?" Seeing his wry smile, Gao Wushi asked, "Let me guess... Although the number of water damage seems to be less, each time the damage is greater?"

"The master said that the trouble is that the management of the Yongding River in the past dynasties was mainly based on building embankments, and finally the entire Yongding River was diverted." Zhang Jin pointed to the frozen Yongding River and said: "The master said that before the Shang Dynasty, the Yongding River came out Behind the mountain, it passes through Babao Mountain, crosses Kunming Lake in the northwest, enters Qinghe River, and goes out to the sea through the North Canal. Later, in the Western Zhou Dynasty, the main stream moved from the north and south of Babao Mountain to Zizhuyuan, crossed Jishuitan, and entered the North Canal along the direction of Bahe River to reach the sea. From the Spring and Autumn Period to the Western Han Dynasty, the Yongding River went south from the Jishuitan, passed through the Beihai and Zhonghai, exited the inner city, and entered the North Canal through Longtan Lake, Xiaotaihou River, and Liangshui River. From the Eastern Han Dynasty to the Sui Dynasty, the Yongding River had moved to the south of Beijing, that is, it went south from Shijingshan Go to the east near Lugou Bridge, pass between Majiapu and Nanyuan, and flow through Liangshui River in the southeast to enter the North Canal. After Tang Dynasty, the Yongding River below Lugou Bridge was divided into two branches: the southeast branch still runs between Majiapu and Nanyuan; The branch first flowed along the Fenghe River, and then gradually moved westward until reaching the Xiaoqing River-Baigou line. Since the southern branch came into being, the southern branch has become the mainstream."

It is understandable that the diversion is highly pragmatic, but he doesn't understand why the master and servant of the Zhang family thought that this diversion was a trouble, so he frowned and asked, "In other words, if there were no solid dikes built repeatedly in the past from Shijingshan to Lugou Bridge, Is it possible for the Yongding River to flow eastward or northeastward after exiting the three stores?"

Zhang Jindao: "Yes, the master has checked and said that in the second year of Duangong in the Northern Song Dynasty, he planned to attack the Youji prefectures occupied by the Khitan. At that time, Song Qi, Minister of the Ministry of Officials, made a suggestion: "The water of the Qisanggan River belongs to the north corner of Yancheng, and goes around the west. Turn around the wall. The army is like going to the bottom of the city. This water is poured into the Gaoliang River in the northeast of Yandan Mausoleum. , that is, Youzhou is separated from Shuinan.' He believes that if the Song army is allowed to draw the Yongding River around the north of Youzhou city, it can separate Youzhou from the Liao army. The master believes that from the location of the place names mentioned above, At that time, the Sanggan River should have flowed from the south to the east of Shijingshan, towards Yancheng, which is the northwest corner of Youzhou, and then turned south and flowed south around the west wall of the city. The foundation of the Jinkou River excavated by water transport. This river still existed until the end of the Jin Dynasty. When the Zhongshu Counselor Polo Timur and others proposed to open the Jinkou River in the second year of Yuan Zhizheng, Xu Youren, the prime minister of Zhongshu, strongly opposed it. He said: "The water in the Western Mountains is high and steep. When the Jin Dynasty died, it flowed into the countryside north of the capital (that is, the capital of Jinzhong). Even if there is a rush, the damage is light. Today it is in the southwest of the capital, which is different from the past." It can be seen that Jinmo Lu The Ditch River flows from the north to the east of Zhongdu City."

Gao Wushi frowned slightly when he heard this, and thought to himself: Why is it that you are always in the upper reaches of your cultivation?In this way, the upper stream will be stable after the embankment is built, but the lower stream will suffer?
Before Gao Wushi asked, Zhang Jin went on to say: "Master has consulted the "Tu Jing Zhi Shu" officially compiled during the Hongwu period. It is recorded in it that the situation of the Yongding River from the Yuan Dynasty to the founding of our Ming Dynasty is: "Out of the Lugou Bridge From the southeast to Kandankou, it was scattered and divided into three parts: one branch flows to the southeast, from the border of Daxing County to Xinhedian, Beixiang, Duzhou (now Xinhe Village on the west bank of the Nanliangshui River in Tongzhou District), and flows to the northeast , reaching Gaolizhuang, Tongzhou, and entering the Bailu River; one of them passes through Qingrundian (now known as Qingyundian) in Daxing County in the southeast, and passes through Dong'an County...; the other passes through Liangxiang, Gu'an, Dong'an, Yongqing and other counties in the south ...Joining with the Bailu River and entering the sea.' That is to say, the Yongding River used to sway up and down the city of Beijing at that time, but since we built dams on a large scale, it has never flowed eastward or northeastward. Although when the flood season comes , The dam between Shijingshan and Lugou Bridge often broke down, but they were quickly repaired and blocked, and the north to east of Lugou Bridge never became the mainstream river. That is to say, Yongding River is only a river that "passes by" from the southwest corner of the suburbs of Beijing. "

Gao Wushi secretly thought: You have been talking for so long, but you just want to say that the place where the Yongding River flows is solidified?Let me think about it... The meaning of your wry smile before must be that the ecological environment of the surrounding area has changed because of the solidification of the river, right?
"What happened after the Yongding River only went to the south?" Gao Wushi thought about it, "Is there a shortage of water in the north?"

Water shortage is an impact that Gao Yushi can directly think of. Due to the blockage of stone embankments or stone banks and the elevation of the river bed caused by sediment deposition, the torrential river can only flow directly downstream, and it is difficult to pass through the natural flow. Sufficient groundwater will be supplemented by infiltration, which will reduce or even disappear the swamps, lakes, and springs on these ancient rivers, and the groundwater level will drop sharply.

"Master Biao sees thousands of miles clearly." Zhang Jin praised, and echoed: "The Yongding River does not go to the north of Beijing, which directly affects the water supply of the old Qinghe River and the old Jingou River of the Yongding River in Beijing. Up to now, the water volume in these areas has been reduced. The reduction is very obvious. The master said that in the past, clear springs could be seen everywhere at the foot of Yuquan Mountain. It is an important source of water for irrigation of fields and construction of palace gardens, but after this dynasty overhauled the dam in the west of Beijing, it began to decline significantly.”

Zhang Jin sighed softly: "My master also said that the Jinshui River that flowed into Taiye Pool from Yuquan Mountain alone in the Yuan Dynasty has been completely obliterated and abandoned; and the Jinshui River that lingers inside and outside the Forbidden City is actually just drawn from Shichahai. Two small canals. The inner city rivers and lakes such as Shichahai (Jishuitan) rely solely on this water source. The surface of the lake is shrinking due to the reduction of upstream water. From the former Yuan Dynasty to the Zhengzheng period to the present, it has been reduced by nearly half. At the end of the Grand Canal, the "Haizi" (the Yuan people's name for Jishuitan) was once lined with masts and covered with boats. Now it has been encroached by large streets and rice fields; It is already difficult and unsustainable to operate.”

When Zhang Jin said this, he suddenly fell silent.

Gao Wushi glanced at him and suddenly understood.Because of the factors that caused this huge change, Zhang Siwei might dare to say it, but as Zhang Jin, he dared not say it.

When the Ming Dynasty built the city of Beijing, major adjustments were made to the water system: first, a section of the Tonghui River east of Shichahai was included in the imperial city, so that the water transport wharf could only be moved to the Datong Bridge outside Dongbianmen; In Changping in the north, the imperial mausoleum was built, and the nearby springs and water veins were regarded as dragon veins and were forbidden to be used. This resulted in the upper source of the Tonghui River only relying on the Xishan water system around Yuquan Mountain and Kunming Lake—that is definitely not enough.

Gao Wushi turned his head and ordered the two people who came with him to watch the moon and listen to the piano to stay in the carriage to keep warm, but he got out of the carriage and walked to the river accompanied by Zhang Jin, watching the waves surging under the ice. River water, secret passage: Many river defense measures have been built on the western part of the Yongding River. If I want to use it to transport soap, it is basically feasible except during the freezing period, but it is difficult to handle during the freezing period.

Although things like soap can be settled in a remote place in the capital and bought a yard to rebuild a warehouse, and building a warehouse itself is not troublesome, but if the Yongding River cannot be used in winter, it will affect my several important ideas about the use of coal in the future. However, these assumptions are very important... What should I do?

It has to be said that the high level of pragmatic ideological awareness is not too high. After all, from the various investigations of the water system of the Yongding River by Zhang Siwei just relayed by Zhang Jin, we know that Zhang Siwei was thinking about the water system of the Yongding River more than ten years ago. After Gao Wushi listened to the management plan, his focus was always on his own business...

At this time, Zhang Jin thought of another thing, and said: "By the way, Master Biao, there is a legend in the capital, I wonder if Master Biao has heard of it?"

"Legend?" Gao Wushi was slightly startled: "What legend?"

"Bitter water legend." Zhang Jin looked at Gao Wu and said pragmatically.

"Bitter water?" Gao Wushi frowned, "I've never heard of it, what's going on?"

Zhang Jin said with a wry smile: "It is said that when I was building the city of Beijing, Liu Bowen sent General Gao Liang to chase after the Dragon King and Dragon Mother to return to the source of sweet water, but Gao Liang accidentally pierced their water basket full of bitter water. The water in Beijing has turned into bitter water... The drinking water in Gaoge's hometown must be the water from Yuquan Mountain bought directly from the water seller. But in fact, ordinary people can't afford this water, they can only drink the bitter water in the capital."

It was only then that Gao Yushi realized that it must be because the annual precipitation in Beijing is not much but the evaporation is strong. After the surface runoff reduces the supply of groundwater, the salinity in the soil will be carried to the upper layer along with the evaporation of water, causing the Well water, drawn primarily from shallow groundwater, is generally bitter.

He smiled wryly in his heart: It's useless for you to tell me this. I'm a brat. Even if there is a way to control the water, no one will listen. , What is the use of the top?

But thinking about it, looking at Zhang Jin's expectant face, Gao Yushi couldn't help comforting him: "I have some ideas about how to control the water, but right now..."

Before he finished speaking, Zhang Jin's face suddenly tightened, and he suddenly turned his head to look northwest.

Gao Yushi also subconsciously turned his head to look, but he saw nothing, and couldn't help being surprised: "What's wrong?"

Zhang Jin didn't answer, but ran towards the tree closest to him. Regardless of the coldness on the tree, he put his ear on it, and then his face became worse and worse. He turned around, pulled Gao Yushi up and walked towards the carriage.

"Master Biao, there may be thieves."

　Thief: "That's right, we are here to rob recommendation tickets!"

　　


(End of this chapter)