Land use in China
China has four times the population of the U.S., within roughly the same area. With 1.3 billion inhabitants, 20% of the world’s population lives in China. While the rate of population growth has been declining for decades, the total number of inhabitants has been growing and is expected to do so through 2030. China’s urban population is growing rapidly; between 1950 and 2009, the percentage of the population living in urban areas quadrupled from 14% to 48%. Meanwhile, the rural population is declining, opening the landscape in areas that are not urbanized. The forests and farming land of eastern China support far more people and major cities than do the grasslands, deserts, and high mountain regions of the west.
Chongqing
According to a July 2010 article from the official Xinhua news agency, the municipality has a population of 32.8 million, including 23.3 million farmers. Among them, 8.4 million farmers have become migrant workers, including 3.9 million working and living in urban areas of Chongqing.
The metropolitan area encompassing the central urban area was estimated by the OECD (Organisation for Economic Co-operation and Development) to have, , a population of 17 million.