The early appearance of the word "Land of Abundance" mainly includes: according to historical records, "Fu Guanzhong left a letter, and he left Sichuan in the right, with fertile fields thousands of miles away, and Bashu was exempted in the south, and the source of the lake was in the north, which was defended on three sides. The princes in the east were in control, and the princes were stable. They embraced the world with rivers and mountains, and the capital was given in the west; Governors change, go downstream, and lose. This so-called Jincheng is a thousand miles away, and the country of abundance is also, Liu Jing said. " Refers to Guanzhong area. Records of Huayang Country (Volume 3) Shu Zhi: After Li Bingxiu's Dujiangyan, the Chengdu Plain was "a thousand miles away, the name of land and sea". When it is dry, it will divert water and seep down, and when it rains, it will block the sluice. Therefore, floods and droughts follow people, and hunger is unknown. When there is no famine, the world is called abundance. " "The profit is dangerous, fertile land is thousands of miles away, and the land of abundance is rich. Because of it, the emperor will become an emperor. " This is a famous sentence in Zhuge Liang's Long Zhong Dui in history, which refers to the Chengdu Plain.
somewhere else
Guanzhong Plain is located between Qinling Mountains and Weibei Mountains (Laolongshan, Guaishan, Wangyaoshan, Huanglongshan and Liangshan, etc.). ). It starts from Baoji in the west and reaches Tongguan in the east, with an altitude of about 323-800 meters, a length of about 350 kilometers from east to west and an area of about 36,000 square kilometers. Because it is between Hangu Pass (later also called Tongguan Pass) and Dasanguan Pass (once said to be between Hangu Pass, Dasanguan Pass, Wuguan Pass and Xiaoguan Pass), it was called "Guanzhong" in ancient times and also called "Qinzhong". The Spring and Autumn Period and the Warring States Period were the hometown of Qin, including Xi 'an, Baoji, Xianyang, Weinan, Tongchuan and Yangling demonstration areas. It is about 350 kilometers long from east to west, with an average elevation of about 500 meters. Narrow in the west and wide in the east, it is known as "Qinchuan in 800 Li".
Weihe Plain is a graben, which is formed by the alluvial of Weihe River and its tributaries Jinghe River and Luohe River, and belongs to the key main part of Weihe fault basin belt. Irrigation has been developed since ancient times and is rich in wheat and cotton. It is an important commodity grain producing area in China. It was the first time that China was called "a golden city with thousands of miles, a land of abundance".
There are natural terrain barriers around the Weihe Plain, which are easy to defend but difficult to attack. Since the Warring States period, there has been a saying of "one country, four blockades". Therefore, in the Han Dynasty, Zhang Liang summed up the advantages of Guanzhong with "a golden city of thousands of miles" and persuaded Liu Bang to make it the capital of Guanzhong. During the Warring States Period, Su Qin told Qin Chen about the plan of "Lian Heng", praising Guanzhong's "fertile land, rich people, numerous chariots, all kinds of industries stormed, fertile fields were thousands of miles away, and accumulated abundance", and said that "this so-called land of abundance is also the best in the world". This is because Guanzhong has become a treasure trove of geomantic omen and the capital of emperors since Zheng Guoqu was restored in the Warring States Period.