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.
Demographics of China
In 2011 a total of 252.78 million migrant workers (an increase of 4.4% compared to 2010) existed in China. Out of these, migrant workers who left their hometown and worked in other provinces accounted for 158.63 million (an increase of 3.4% compared to 2010) and migrant workers who worked within their home provinces reached 94.15 million (an increase of 5.9% compared to 2010). Estimations are that Chinese cities will face an influx of another 243 million migrants by 2025, taking the urban population up to nearly 1 billion people. This population of migrants would represent "almost 40 percent of the total urban population," a number which is almost three times the current level. While it is often difficult to collect accurate statistical data on migrant floating populations, the number of migrants is undoubtedly quite large. “In China’s largest cities, for instance, it is often quoted that at least one out of every five persons is a migrant.” China's government influences the pattern of urbanization through the Hukou permanent residence registration system, land-sale policies, infrastructure investment and the incentives offered to local government officials. The other factors influencing migration of people from rural provincial areas to large cities are employment, education, business opportunities and higher standard of living.