Nine Provinces according to traditional analysis of literary sources before modern archaeological discoveries, which show them to have been greatly inflated According to the
Book of Documents, Yu the Great divided his state into
nine provinces (). These are Ji (), Yan (), Qing (), Xu (), Yang (), Jing (), Yu (), Liang () and Yong (). Each province was briefly described by the
Book of Documents in terms of their soil quality, their productivity and other geographical characteristics. According to the chapter "
Tribute of Yu" in the text, the Nine Provinces respectively correspond to modern regions of China as: • Ji Province corresponds to modern
Hebei,
Shanxi and a part of
Liaoning; • Yan Province corresponds to parts of
Shandong and Hebei; • Qing Province corresponds to the part of Shandong to the east of
Mount Tai; • Xu Province corresponds to northern parts of
Jiangsu,
Anhui, and the southern parts of Shandong; • Yang Province corresponds to southern Jiangsu, southern Anhui, northern
Zhejiang, and northern
Jiangxi; • Jing Province corresponds to parts of
Hunan, and northwestern Jiangxi; • Yu Province corresponds to Henan, northern
Hubei, southeastern
Shaanxi, and southwestern Shandong; • Liang Province corresponds to
Sichuan, southern
Gansu, and Shaanxi; • Yong Province corresponds to parts of Shaanxi, Gansu,
Ningxia, and
Qinghai.
Capital cities The Xia dynasty moved the capital many times. According to traditional records, these capitals are as follows:
Fangguo tribes According to traditional Chinese records, the
fangguo tribes were polities outside the Xia clan's direct rule. They were mostly large tribal peoples, but some were massive enough to become small states with more complex social structures, rivaling that of the Xia. Many of the tribes were described as in regular relationships with the Xia court, being either allies or enemies. Eventually, some of the tribal chiefs joined the force of
Tang to overthrow Jie's regime.
Geopolitical system According to the "Tribute of Yu" chapter of the
Book of Documents, the scope of direct jurisdiction of the Xia state was limited to a small area controlled by the ruling clan. Beyond the Xia's own tribe, other tribal leaders enjoyed relatively independent management and ruling rights in their own territories; for the Xia Hou, they expressed their mutual relations in the form of submission and tribute. The
Book of Documents says that Yu the Great determined the relationships between Xia and Fangguo tribes, dividing them into 5 categories according to the tribes' relative locations from the Xia clan's residence: Texts like the
Book of Documents, the
Book of Rites, and the
Mencius describe that the Xia had already established a distinguished official system with positions helping the Xia clan in managing the state. There were also laws set forth to maintain social stability within the country.
Economic status Traditional narratives describe the Xia as enjoying prosperity in agriculture. The
Analects contends that Yu the Great devoted himself to irrigation, improving the drainage system for cultivating crops. The texts also say that the people of Xia was gifted in producing alcohol, with the notable legendary figure of
Du Kang who is usually identified with Shao Kang. The population was described to have had vegetables and rice as the staple crop, and meat was usually reserved for sacrifices. Additionally, manufacture of goods and trade with outside tribes flourished. The site at Erlitou contains many metallic fragments, suggesting that the time assigned to the Xia was characterized by bronze metallurgy. During Yu the Great's controlling of the floods, he renewed the transportation system. Sima Qian wrote in his
Records of the Grand Historian that Yu used carriages to travel on land, boats to travel on rivers, sleds to travel on mud, and horses to cross the mountains. He surveyed the lands and opened up routes through geographical locations so that tributes from tribal chiefs to the Xia would be more convenient. He organized people to build roads connecting the Nine Provinces, helping to improve tributary and economic relations between the tribes. Traditional texts record that the transport system of the Xia clan extended at least 500600
li horizontally and 300400
li vertically. The
Guoyu also records that the Xia dynasty ordered the roads to be opened up in the 9th month, the bridges to be finished in the 10th month.
Population estimates Although the existence of the Xia dynasty remains unproven and there are no population records from the Bronze Age, scholars have attempted to estimate its population by projecting backwards from known populations 1500 years later. The
Book of the Later Han quotes
Huangfu Mi's work Diwang Shiji, which claims that when Yu the Great finished establishing the Nine Provinces, the total population was 13,553,923 individuals; however, this number is highly speculative because Huangfu Mi reached his conclusion by extrapolating from demographic statuses of the
Qin,
Han,
Jin dynasties. Modern Chinese scholars estimated the Xia's population by employing records from ancient texts. Records have it that when Tai Kang established Lun as his capital, the settlement had about one
lu, which was 500 people according to Du Yu, and this number includes only soldiers. Modifying the figures and adding other types of people, Song Zhenhao postulated that this supposed city had between 1500 and 2500 individuals by the time of Tai Kang, a number he classified as medium. Estimating the number of populous cities, Song finally calculated the result of over 2 million. Wang Yumin, using description of demography during the reign of
Emperor Shun who directly preceded the Xia, concluded that the population of the dynasty was around 2.1 million. == Modern studies ==