Kaifeng, known as Bianliang and Bianjing in ancient times, is one of the famous historical and cultural cities in China and one of the seven famous ancient capitals. It has a history of more than 3,000 years. As early as the Spring and Autumn Period, Zheng Guo built a city here in order to open up its territory, so it was named Kaifeng. During the Northern Song Dynasty, Tokyo had a majestic city, "a population of more than one million, and goods concentrated in the north and south." It had a prosperous economy, beautiful scenery, and abundant resources. It was not only the national political, economic, and cultural center, but also one of the most prosperous cities in the world, with " Bianjing is known as the "International City" with "unparalleled splendor in the world".
Kaifeng is located on the vast plain of eastern Henan. It has no mountains, many rivers and lakes, a mild climate, sufficient rainfall, abundant above-ground and underground water resources, and a good natural ecological environment. The rivers in Kaifeng belong to the two major water systems of the Yellow River and the Huaihe River. Among them, 32 have a drainage area of ??more than 1 million square kilometers, including the Yellow River, Guohe River, Huiji River, and Jialu River.