The origin of the Beijing-Hangzhou Canal is urgent, urgent, answer quickly.

1. Strengthen north-south traffic and exchanges and consolidate the central government's rule over the whole country. 2. Strengthen the economic construction in the south of the Yangtze River. 3. Cultural blending, the integration of Central Plains culture and southern culture. 4. Facilitate the transportation of grain from south to north. The Beijing-Hangzhou Grand Canal is a great project created by the working people in ancient China, a precious material and spiritual wealth left by our ancestors, and an important living and flowing human heritage. The Grand Canal originated in the Spring and Autumn Period, formed in the Sui Dynasty and developed in the Tang and Song Dynasties. The Beijing-Hangzhou Grand Canal was built in the Spring and Autumn Period more than 2,000 years ago, with a history of 2,500 years. An important river channel dug by Qin Shihuang (Ying Zheng) in Jiaxing also laid the foundation for the development of Jiangnan Canal in the future. According to Yue Jue Shu, Qin Shihuang "ruled Lingshui Road from Jiaxing, crossed Qiantang River and crossed Zhejiang". About 2,500 years ago, Fu Cha, the king of Wu, dug a ditch, opened a canal connecting the Yangtze River and Huaihe River, and built Seoul, from which the canal and its culture were derived. The Grand Canal we are talking about today was dug in the Spring and Autumn Period, completed in the Sui Dynasty, flourished in the Tang and Song Dynasties, straightened in the Yuan Dynasty, and dredged in the Ming and Qing Dynasties (dug in 486 BC and opened to traffic in A.D. 1293), which lasted 1779. In the long years, it has experienced three major construction processes. Especially in the Sui Dynasty, Emperor Yang Di used more than two million people to dig the Grand Canal, which made great contributions to the unprecedented economic and cultural prosperity of the country in the future! Although Yang Di was the king of national subjugation, his historical contribution is undeniable. Pi Rixiu, a poet in the Tang Dynasty, chanted in two poems in the first part of "Looking Back on the Past by the Bian River": Wan Dao and Sui died in this river, and it has been thousands of miles since then. If there is no water temple dragon boat, there are not many theories about * * *! [2]-It can be seen that the Grand Canal has a great influence on the economic traffic between the north and the south of China in the future. From then on, the Grand Canal began to run through the whole line in Sui Dynasty, and after continuous development in Tang and Song Dynasties, it finally became the traffic artery connecting Haihe River, Yellow River, Huaihe River, Yangtze River and Qiantang River in Yuan Dynasty. The Beijing-Hangzhou Grand Canal is the second "golden waterway" in China after the Yangtze River, and its value is comparable to that of the Great Wall. It is the earliest and longest artificial river course in the world, which is 16 times that of Suez Canal and 33 times that of Panama Canal. The Beijing-Hangzhou Canal has always been the main canal for water transportation in past dynasties, and played an important role in the economic and cultural exchanges between the North and the South. /kloc-shipping rose in the 0/9th century. With the opening of the Jin-Pu Railway, the role of the Beijing-Hangzhou Canal gradually decreased. After the migration of the Yellow River, the water resources in the reach of Shandong Province were in short supply, and the siltation was shallow, and the north-south navigation was cut off and silted up to the ground. The section of Jiangsu with large water volume and good navigation conditions can only sail in Xiao Mu. The abandonment and depression of the Beijing-Hangzhou Canal is a portrayal of the semi-colonial and semi-feudal social situation in China. After liberation, some river sections were widened and deepened, many modern docks and shiplocks were built, and shipping conditions were improved. Seasonal navigation mileage reaches 1 100 km or more. 660 kilometers south of Pixian County, Jiangsu Province, the 500-ton fleet can be unimpeded. The ancient Beijing-Hangzhou Canal will become a water conveyance channel for the future South-to-North Water Transfer Project. The world-famous Beijing-Hangzhou Grand Canal is the earliest and longest artificial river in the world.

The Grand Canal starts from Beijing in the north and ends in Hangzhou in the south. It flows through six provinces and cities of Beijing, Hebei, Tianjin, Shandong, Jiangsu and Zhejiang, and connects five major water systems, namely Haihe River, Yellow River, Huaihe River, Yangtze River and Qiantang River, with a total length of 1.794 km. From 486 BC to AD 1293, the whole line was opened to traffic, which lasted 1779. In the long years, it has experienced three major construction processes.

The Beijing-Hangzhou Universiade consists of artificial rivers and some rivers and lakes, and the whole process can be divided into seven sections: (1) Tonghui River; (2) North Canal; (3) South Canal; (4) Lu Canal; (5) the middle canal; (6) Li Yunhe; (7) Jiangnan Canal. The Beijing-Hangzhou Universiade, as the main artery of north-south traffic, has played a great role in history. The navigation of the canal has promoted the rapid development of coastal cities.

At the end of Qing Dynasty, after the completion of Han Jing Railway and Jinpu Railway, the Qing government was indifferent to the fate of the canal and abandoned it. The canal channel is getting narrower and narrower, and the narrowest part is less than 10 meter, so the transportation capacity is greatly reduced, and many river sections are not navigable. Some river sections in Shandong province have been silted to the ground; Even if Jiangsu has a large amount of water and good navigation conditions, only Xiao Mu sailboats can be used.

After the founding of New China, the Grand Canal regulation plan was formulated. Many parts of the canal have been dredged and expanded, many shipping gates have been built along the river, and many modern docks have been rebuilt and built on both sides. At present, although the Grand Canal is not navigable, its seasonal navigable mileage has reached 1 100 km, which has played a certain role in sharing the freight flow of Jin-Pu Railway, especially undertaking the short-and medium-distance transportation tasks of agricultural and sideline products such as coal, building materials, salt, daily industrial products, grain and oil, developing regional economy and strengthening north-south exchanges. Today, the Grand Canal will be the main line of the South-to-North Water Diversion Project, and the ancient Grand Canal will be rejuvenated.