brief introduction
Yi river, also known as Yishui, is a big river in the Siyishu River system in the Huaihe River Basin. Yi river originates from Tianzhuang Reservoir in Yiyuan, and flows through Yiyuan in Zibo, Yishui in Linyi, Yinan in Linyi, Linyi City, Lanling in Linyi and Tancheng in Linyi, to Pizhou in Jiangsu, to Xinyi River, to Wei Yan Port and to the Yellow Sea. The total length is 574 kilometers, the drainage area is 17325 square kilometers, the catchment area is 4892 square kilometers, and the widest river surface is 1540 meters. Linyi people call it "Mother River".
There are beautiful natural scenery and rich places of interest in the Yi River Basin. There are cultural relics and historic sites along the coast, such as Yiyuan ape-man site, Zhinv Cave, portrait tomb of Han Dynasty, Yang Du Old Town, Yuguo Old Town, Jinque Mountain, tapiscia sinensis Shanhan Group, and Carbon Country Old Town. Yi river Xiaobudong Rubber Dam, completed on 1997, has a total length of 1 135 meters, and has reserved 16000 mu of landscape water surface in Linyi City. It was rated as one of the national 18 national water conservancy scenic spots and the longest rubber dam in the world by Guinness World Records.
Extended data
Yi River was called Yishui in ancient times, and it was a tributary of Surabaya in ancient times. After the Yellow River captured the Huai River and saw the sea, Yishui became a tributary of the Yellow River. 1604 (thirty-two years of Ming Wanli), the Kaihe Canal was completed, and Yishui was intercepted by the newly opened canal, so it was not allowed to enter the Yellow River, so it diverted south and merged into the Roman Lake. During the Chongzhen period of the Ming Dynasty (1628~ 1644), in order to protect the canal channel and Suqian City, Mahe River (later named Liutang River) was opened to divert the water from the lake eastward and inject it into the Yellow Sea. 1685 (twenty-four years of Emperor Kangxi of Qing Dynasty) dug Liutang River, so that the Yi River reached the mouth of Guanhe River eastward and entered the sea. Although it was treated many times later, until the Xinyi River was excavated in 195 1 year after the founding of the People's Republic of China, it still kept entering the sea from the irrigation mouth.