Please briefly describe an article with the title "Jiang".

Writing ideas: When writing a report, just write down the history and current situation of the Jiang surname. It mainly includes the development of the Jiang surname in the Qin, Han and Song dynasties.

The surname Jiang is one of the ancient Chinese surnames, mainly derived from the surnames Ji, Ying, Zi, etc. In 623 BC, Jiang State (now part of Zhengyang County, Henan Province), a vassal state in the Spring and Autumn Period, was destroyed by the Chu State, and its descendants took the name of the country as their surname for generations.

During the Qin and Han Dynasties, Jiang people mainly lived in Henan, Shandong, and Hubei. Later, they developed to the west, north, and south, and Jiang surnames were also found in Hebei, Shanxi, Anhui, and other places. During the Jin and Southern and Northern Dynasties, political power in the north changed frequently, and the Jiang surname moved to Zhejiang and other places in the southeast. During the Tang and Song Dynasties, with the repeated migration of residents from the Central Plains to the south, the Jiang surname entered the vast areas of Jiangxi, Zhejiang, and Fujian. In the early Qing Dynasty, the Jiang surname entered Taiwan. ?[23]?

During the Song Dynasty, there were approximately 250,000 people with the surname Jiang, accounting for approximately 0.32% of the country's population, ranking 65th. The largest province with Jiang surname is Jiangxi, accounting for about 21.3% of the total population of Jiang surname in the country. The distribution in the country is mainly concentrated in Jiangxi, Fujian, Zhejiang, Anhui, and Henan. These five provinces account for about 83% of the total population of Jiang surnamed in the country, followed by Hubei, Jiangsu, Shanxi, Guangxi, Sichuan and other provinces. The whole country has formed a gathering place with Jiangxi, Zhejiang, Fujian, Anhui and Yujiang surnames centered in Jiangxi.

The schematic diagram of the distribution frequency of the surname Jiang among the population shows that the surname Jiang is widely distributed, but unevenly. The surname Jiang is one of the more common surnames in Guangdong and Guangxi. In Guangxi, eastern Guangdong, southern Guizhou, eastern Yunnan, Taiwan, and eastern Fujian, the proportion of Jiang surnamed in the local population is generally more than 0.75, and in central areas the ratio is as high as more than 1.5, and the total coverage area accounts for the land area 6.4.

In southeastern Sichuan, central Yunnan, northern Guizhou, Hunan, southern Hubei, Jiangxi, western Fujian, Zhejiang, southern Jiangsu, southern Anhui, and eastern Guangdong, the proportion of Jiang surnamed in the local population is generally 0. 25-0.75, the total coverage area accounts for 14.8% of the land area; in other areas, the proportion of Jiang surname in the local population is generally below 0.25, the total coverage area accounts for 78.8% of the land area, of which the proportion is insufficient 0.1 accounts for 60% of the land area.

Distribution of the surname Jiang:

The surname Jiang ranks 141st in the Song version of "One Hundred Family Surnames". The total contemporary population with the surname Jiang is approximately 3.62 million, ranking 74th, accounting for approximately 0.22% of the total population in the country. The Jiang surname population is mainly distributed in the Huaihe River Basin, Qilu area, Yangtze River Basin and areas south of Henan, mainly concentrated in Henan, Fujian, Guangdong, Shandong, Taiwan, Anhui, Jiangsu, Zhejiang, Jiangxi, Hunan, Guangxi, etc.