The western Sichuan plain was the territory of Shu during the Three Kingdoms period, which lasted for more than 60 years, with Chengdu as its capital.
One of the countries in the Five Dynasties and Ten Kingdoms period was founded by Meng Zhixiang, with its capital in Chengdu (present-day Sichuan). In its heyday, the territory was about most of Sichuan, southeastern Gansu, southwestern Shaanxi and western Hubei.
It was built by Wang Jian, one of the five dynasties and ten countries.
As an important feature of farming culture in Chengdu Plain, Chengdu Plain means that its content and research methods are simple and simple, and it is a simple description of natural phenomena and social phenomena, and it does not have scientific theories and scientific experimental methods in modern society. It is the consensus on natural phenomena and social phenomena that people formed and developed in the long-term social practice at that time. Once an ideology is generally recognized by most people, it is universally binding and instructive. Because of this, this simple farming culture became a powerful tool for people in Chengdu Plain to understand the world and solve problems at that time, which was widely used in all aspects of production and life and played an important guiding role in the social and economic development of Chengdu Plain, which was still in an agricultural society.
In 250 BC, the world-famous Dujiangyan Water Conservancy Project was completed in the State of Qin. After continuous reconstruction and expansion, the land utilization rate is as high as 60%. Crops mainly include rice, wheat and rape, with high and stable yield. It is a famous commodity grain and oil production base in China. The level of pig raising ranks in the forefront of the province, and it is a pig raising base in Sichuan.
Sichuan Basin is located in the east of Sichuan Province on the upper reaches of the Yangtze River, surrounded by mountains and plateaus at an altitude of 2,000-3,000 meters, with Daba Mountain, Micang Mountain and Longmen Mountain in the north, Qionglai Mountain and Daliangshan Mountain on the edge of the Qinghai-Tibet Plateau in the west, Dalou Mountain in the south and Wushan Mountain in the east. Sichuan basin is a typical basin in structure and landform. It has been a large depression area with relatively stable crust since Sinian. During the Indosinian Movement of Late Triassic, it became an inland lake basin, but its scope was much larger than that of today's Sichuan basin. Purple sandstone and shale with a thickness of 3000 ~ 4000 meters were accumulated in Mesozoic, so people also called it "red basin" or "purple basin". At the end of Mesozoic, the Sichuan movement made the periphery of the basin fold into mountains and the middle was relatively depressed, and the outline of the Sichuan basin was basically formed, which also caused large-scale deformation of the strata inside the basin. A group of NE-trending folds appeared in the east, which is called the eastern basin fold belt. The dome structure is formed in the middle, which is called the dome belt in the basin; The western part is characterized by subsidence, which has become the subsidence zone of the basin, thus laying the foundation for the three major geomorphic areas of the basin today. The Cenozoic Himalayan movement caused the surrounding mountains to rise again, the basin to sink again, and Chengdu to sink deeper. At the same time, the Yangtze River flows through Wushan and flows eastward, completing the unified Yangtze River water system and transforming the internal flow basin into the external flow basin.