Administrative divisions of China By its political level, when a "city" is referred to, it can be a: By its actual area and population, it can be: When used in the statistical data, the word "city" may have three different meanings: It is important to specify the definition of "city" when referring to statistical data of Chinese cities, otherwise, confusion may arise. For example, Shanghai is the largest city in China by population in the urban area but is smaller than Chongqing by the population within the administration area. Before the establishment of the Qin Dynasty, China was ruled by a network of kings,
Agriculture in China the leading producer of cotton, which is grown throughout, but especially in the areas of the North China Plain, the Yangtze river delta, the middle Yangtze valley, and the Xinjiang Uygur Autonomous Region. Other fiber crops include ramie, flax, jute, and hemp. Sericulture, the practice of silkworm raising, is also practiced in central and southern China. China has a large livestock population, with pigs and fowls being the most common. China’s pig population and pork production mainly lie along the Yangtze River. In 2011, Sichuan province had 51 million pigs (11% of China’s total supply). In rural western China, sheep,