What place is referred to as the Kingdom of Abundance by Zhuge Liang?

Referred to as the Land of Abundance by Zhuge Liang, it refers to the Chengdu Plain.

“Yizhou is a dangerous fortress, with thousands of miles of fertile fields, a land of abundance, and it is because of it that the great ancestor became an emperor.” This is a famous line in Zhuge Liang’s “Longzhong Dui” in history, referring to the Chengdu Plain.

The Chengdu Plain, also known as the Western Sichuan Plain and the Western Basin Plain, is called "Western Sichuan Bazi" in Sichuan dialect. It is an alluvial plain located in the western part of the Sichuan Basin in China, including all districts of Chengdu City, Sichuan Province. The county and parts of Deyang, Mianyang, Ya'an, Leshan, Meishan and other places, with a total area of ??18,810 square kilometers, are the largest plains in the three southwest provinces of China.

Extended information:

The Chengdu Plain is developed on the basis of the northeast-southwest syncline structure and consists of 8 alluvial fans originating from the northwest Sichuan Plateau, including the Minjiang River, Tuojiang River and their tributaries. Overlapping and connected to form a composite alluvial fan plain. The surface of the entire plain is loose, the sediments are huge, the terrain is flat, the average slope is only 3 to 10, and the relative height difference of the surface is less than 20 meters. ?

The Chengdu Plain is surrounded by mountains. The basement is composed of Cretaceous and Lower Tertiary clastic rocks (red beds). The main material of the plain is composed of Quaternary loose accumulations. The plain has four distinct seasons, little sunshine, a mild climate, and abundant rainfall. It belongs to the warm and humid subtropical Pacific southeast monsoon climate zone. Its water system has a special pattern, which is spindle-shaped. After the river leaves the mountain pass, it divides into many tributaries and runs toward the plain, with staggered branches and crisscrossing canals.

The terrain of the Chengdu Plain slopes from northwest to southeast. It is generally about 600 meters above sea level and has fertile soil. There is also the Dujiangyan Irrigation Project, which has been famous since ancient times. It has crisscrossing canals, developed agriculture, rich products, and a dense population. It is an important rice, sugar cane, silk, and rapeseed producing area in China. It has been known as the "Land of Abundance" since ancient times.

During the Three Kingdoms period, Liu Bei proclaimed himself emperor in Chengdu, which was known as Shuhan in history and was divided into Yizhou and Liangzhou. There were 24 counties under it, 16 of which were in Sichuan, and most of the 16 counties were in the Chengdu Plain. . During the Jin and Jin Dynasties, due to wars, the Chengdu Plain ushered in the first wave of immigration, and a large number of people from the north moved south.

In order to adapt to the needs of the political situation, the Sui Dynasty continuously adjusted the establishment of administrative districts in Sichuan and carried out a large number of provincial mergings of old counties and counties. Sichuan (including Chongqing) established 24 County, 174 counties, Chengdu is still governed by Shu County.

Baidu Encyclopedia-Chengdu Plain

Baidu Encyclopedia-Land of Abundance (Idioms and Allusions)