Judging that when Yuan Shizu dug the Huitong River and the Tonghui River

Mistake. Huitong River is Yongle Emperor in view of the safety of shipping, in order to solve the problem of grain in Beijing after the relocation of the capital, decided to reopen the Huitong River.

That's right, communicate the north-south traffic!

Tonghui River is a canal dug and established in the Yuan Dynasty, which was presided over by Guo Shoujing, a famous water conservancy expert in the Yuan Dynasty. The earliest Tonghui River connected the water systems of the capital such as Kunming Lake and Jishuitan, and later began to dig a canal to facilitate transportation in 1292. On the day of the completion of the river, Kublai Khan, the ancestor of the Yuan dynasty, happened to return from Helin, and saw that the water surface was full of grain boats on the Wanning Bridge, and the water surface was almost covered by dense and dense conditions, and the river was named "Tonghui River" in a good mood.

Guo Shoujing is not only a famous water conservancy expert, but also a scientist and mathematician, one of the representative works of which was the world's most advanced "Time Calendar" at that time.

At the beginning of the Yuan Dynasty, Kublai Khan ordered the Shichahai Sea system to be the main body to operate Dadu, and set the east coast of Shichahai as the central axis of Dadu. In order to solve the problem of water diversion in the capital, Guo Shoujing presided over the construction of the water diversion project from Baifu Spring in Changping to Dadu, and then presided over the dredging and improvement project of the Tonghui River.

According to records, at that time, not only did migrant workers dig ditches, but even the imperial court had to show their attitude and participate in labor in person. After the river was opened, a large number of grain ships sailed into the capital, and the residents on both sides of the river competed for the first time, and the scene was as lively as a festival.

It was this scene that made Kublai Khan, who happened to return, "dragon's heart happy", and then named the river "Tonghui River".

Guo Shoujing's official position in the imperial court was Taishi Ling, and he managed the related affairs of the Taishi Academy, astronomy, water conservancy, calendar and other affairs were all within his scope of responsibility.

In order to compile a more accurate and practical calendar, he first persuaded Kublai Khan to support him and completed the "Four Seas Test", that is, he sent a number of people to make astronomical observations in 27 places, and then collected the observations for calculation. At the same time, he also invented and improved a variety of astronomical observation instruments, such as the simple instrument, the altitude meter, the polar meter, the closed armillary celestial phenomenon, the exquisite instrument, etc., in order to obtain more accurate observations.

It is precisely with these nuclear defeat observations as a benchmark that the "Time Calendar" compiled by Guo Shoujing is sufficiently scientific and reliable.

In terms of geography, he proposed for the first time that the sea level should be used as a benchmark to compare the topography of Dadu and Bianliang, which is the prototype of the extremely important concept of "altitude" in modern geography. After going to Western Xia to control the water, he also went up the Yellow River to try to find out where the true source of the Yellow River was.

Guo Shoujing was a famous scientist in ancient China, and many of his research results and observation instruments still play a role in later generations, which is of great significance.

In his honor, the scientific community used to use his name to name things like lunar craters, asteroids, telescopes, and more.

Guo Shoujing, this person is a very famous person in the Yuan Dynasty, this person is a very powerful water conservancy expert, and he knows the river very well.

This person should be Guo Shoujing, he is also a water conservancy expert, and he has always been particularly famous in the history of our country.

The person who presided over and dug the Tonghui River was Guo Shoujing, an expert in the water conservancy industry.

During the reign of Kublai Khan, the ancestor of the Yuan dynasty, the Tonghui River was dug by Guo Shoujing The Tonghui River was dug and built in the Yuan Dynasty, and was built by Guo Shoujing.

Tonghui River is a canal dug and built in the Yuan Dynasty, which was built by Guo Shoujing. From the 29th year of the Yuan Dynasty (1292) to the beginning of the Yuan to the 30th year of the Yuan Dynasty (1293), the Yuan Shizu (Kublai Khan) named the river Tonghui River.

Yuan Shizu, presided over by Guo Shoujing to build.

The Dam River, also known as the Futong River in the Yuan Dynasty. The Caoyun route is from Tongzhou, along the Wenyu River to the deep ditch dam into the dam river, through the seven dams, and then to the capital Guangximen. The Dam River, as the name suggests, is a dam that stores water to ensure the necessary depth for boats.

Hence the name from the construction of a dam on the canal.

The correct answer is: c Many stone dams, drainage.

Dig the Tonghui River, guide Changping from the floating spring water into the Wengshanbo, through the Gaoliang River into the Huqi City in the pond, and then through the city out, along the old road of the Zhahe River, in Tongzhou Zhangjiawan into the White River. Because the terrain of most of the capital is 20 meters higher than Tongzhou, sluices and dams are set up along the river to carry regrets or bucket gates to adjust the water level. The excavation of the Tonghui River not only has military significance, but also is of great significance for the transportation of grain from the south to the north.

Argue and be right.

Hello! Differences: The Sui Dynasty Canal passes through the capital Luoyang, north to Youzhou, and south to Yangzhou, in the form of a large bend. The capital of the Yuan Dynasty was in Dadu, and the canal no longer passed through Luoyang but was straightened by intercepting the clumps and bending, directly reaching Dadu in the north and Yangzhou in the south.

Similarities: The canals of the Yuan Dynasty were built on the basis of the Sui Dynasty. All communicated with Haihe.

Yellow River. Huai River.

The five major waters of the Yangtze River and the Qiantang Zaozheng and Zhengjiao rivers have played a great role in the economic and cultural development of the north and south, mainly playing a role in transportation.

It only represents a personal opinion, don't spray if you don't like it, thank you.

Singularity: The Sui Dynasty Canal passed through the capital Luoyang, in a large curved shape. The capital of the Yuan Dynasty was defeated in Dadu, and the canal no longer passed through Luoyang but was cut straight and straightened, and the burning bucket arrived in Dadu.

Same point: all communicate with the Haihe River.

Huangpi Mill River. Huai River.

The five major waters of the Yangtze River and the Qiantang River have played a great role in the economic and cultural development of the north and the south.

The purpose of the Grand Canal of the Sui Dynasty and the Tonghui River of the Yuan Dynasty is basically the same, simply put, they are both for transportation, specifically, they are for transporting food and material security in the Jiangnan region to meet the needs of the Beijing division at that time.

Data extension: The Beijing-Hangzhou Grand Canal is the world's longest mileage, the largest ancient canal, but also one of the oldest canals, and the Great Wall, Karez and known as the three great projects in ancient China, and used so far, is a great project created by the ancient Chinese working people, is one of the symbols of China's cultural status. The Grand Canal starts from Yuhang (now Hangzhou) in the south, reaches Zhuojun (now Beijing) in the north, passes through the four provinces of Zhejiang, Jiangsu, Shandong, Hebei and Tianjin and Beijing, and runs through the five major water systems of Haihe, Yellow River, Huai River, Yangtze River and Qiantang River, with a total length of about 1,797 kilometers. The canal has played a huge role in the economic and cultural development and exchanges between the northern and southern regions of China, especially the development of the industrial and agricultural economy along the route.

The Tonghui River is located in the east of the capital and is a canal dug and built in the Yuan Dynasty. It was presided over by Guo Shoujing. From the 29th year of the Yuan Dynasty (1292) to the completion of the 30th year of the Yuan Dynasty (1293), the Yuan Shizu named the river "Tonghui River".

The earliest excavated Tonghui River from Changping County Baifu Village Shenshan Spring through Wengshanbo (now Kunming Lake) to Jishuitan, Zhongnanhai, from the Wenming Gate (now Chongwenmen) to the east, in today's Chaoyang District Yangzha Village to the southeast, to Tongzhou Gaolizhuang (now Zhangjiawan Village) into the Lu River (now the North Canal Ancient Road), a total length of 82 kilometers. Among them, the section of the river from Wengshan Bo to Jishuitan was called Gaoliang River in the Yuan Dynasty.

After the excavation of the Tonghui River, the water pond can be reached by boat, so the pond, including the area of Shichahai and Houhai today, becomes the end point of the Grand Canal, and the merchant ships gather hundreds of ships to moor, and thousands of sails are moored, lively and prosperous. In the middle and late Yuan Dynasty, up to two or three million stone grains were transported from the south to Dadu through the Tonghui River every year. The river was maintained during the Ming and Qing dynasties and remained in use until the early 20th century.

c This hail and oak question examines the Grand Canal. The Grand Canal of the Yuan Dynasty and the Grand Canal of the Sui Dynasty were both initiated by the ruler to collapse, and both promoted the exchange of economic sources between the north and the south.