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
Rapid fertility reduction associated with the one-child policy has potentially negative results. For instance, in the future the elderly might not be able to rely on their children to care for them as they have in the past, leaving the state to assume the expense, which could be considerable. Based on United Nations and Chinese government statistics, it was estimated in 1987 that by the year 2000 the population 60 years and older (the retirement age is 60 in urban areas) would number 127 million, or 10.1% of the total population; the projection for 2025 was 234 million elderly, or 16.4%. According to projections based on the 1982 census, if the one-child policy were maintained to the year 2000, 25% of China's population would be age 65 or older by the year 2040. In 2050, the number of people over 60 is expected to increase to 430 million.