Lingqu, also known as Gui Xiang Canal, is also known as Xing 'an Canal. In xing an, Guangxi Zhuang Autonomous Region.
China and one of the oldest artificial canals in the world. In Xing 'an, northeast of Guangxi Zhuang Autonomous Region in China, it is also called Gui Xiang Canal or Xing 'an Douhe. It was unearthed in 2 14 BC (Qin dynasty). The Nanling Mountains, which straddle the border between Hunan and Guangxi, are dotted, and the upstream sources of Xiangjiang River and Lijiang River are very close here. The watershed near Xing 'an City is a series of 300? 500 meters, relative height 20? 30 meters, the water level difference between the two rivers is less than 6 meters.
Lingqu projects mainly include mouth, large and small stone dikes, south canal, north canal, steep gate, Qin dike and so on. The large and small Pingshi Dike starts from the foot of Longwangmiao Mountain in the southeast of Xing 'an City in the shape of a "human", and on the left is the Pingshi Dike in Datian, which extends to the east bank and is connected with the mouth of the North Canal. On the right is Xiaotian Pingshi Dike, which extends to the west bank and connects with the mouth of South Canal. The spatula is located at the front end of the herringbone stone embankment, made of stone and sharp as a plow. The mouth is separated from the ocean water in the upper reaches of Xiangjiang River, three points into ideas and seven points into Hunan. The top of Tianpingshi Dike is lower than both banks, which can intercept all the river water entering the canal during the dry season, and the flood can cross the top of the Dike and drain into the old Xiangjiang River. The South Canal is a man-made canal. In the south of the old Xiangjiang River, Hunan water is drawn through Xing 'an City, and then injected into Darong River through Shi 'an Water and Linghe River. Because the Haiyang River has been dammed and the North Canal has been dug north of the old Xiangjiang River, the navigation between Hunan and Lijiang River has been opened. The South Canal and the North Canal are the main projects of Lingqu, with a total length of 34 kilometers (including the reach from Shi 'anshui to Linghe). Steep gate is a facility for raising water level, binding water and passing ships. They are quite modern ship locks, mainly built in places with shallow rivers and relatively fast water flow. According to records, there were still more than 30 steep gates in the Ming and Qing Dynasties. Qin Dike is 2 kilometers from the end of Xiaotianping Stone Dike to the east bank of Shangshuimen in Xing 'an City. The construction of Lingqu connects the Yangtze River and the Pearl River, which greatly promotes the economic and cultural development of Lingnan. After the completion of the railway and highway between Hunan and Guangxi, Lingqu became a channel dominated by irrigation.
Lingqu is a national key cultural relics protection unit, located in Xing 'an, 60 kilometers northeast of Guilin. It is the most complete ancient water conservancy project in the world, with the same name as Dujiangyan in Sichuan and Zheng Guoqu in Shaanxi, and is also called "the three major water conservancy projects in Qin". Mr. Guo Moruo called it: "Responding to the North and South of the Great Wall is a wonder of the world."
Lingqu is 37 kilometers long and was built in the 33rd year of Qin Shihuang (2 14 BC). It consists of spatula, large and small scales, drainage scales of south ditch and north ditch, and steep doors. Lingqu is scientifically designed and beautifully constructed. The estuary divides the water in the Xiangjiang River into three parts, three of which flow into the Lijiang River south and seven into the Xiangjiang River north, connecting the Yangtze River and the Pearl River.