必修二地理总结（Compulsory two geographical summary）.doc

必修二地理总结（Compulsory two geographical summary） Chapter 1 population growth, migration and reasonable capacity Section 1 patterns and regional distribution of population growth 1, the general trend of world population growth: sustained growth Features: the stage, before the Industrial Revolution: slow growth; after the Industrial Revolution: accelerated growth; after World War II: the rapid growth of population growth plays a decisive role in the development of productivity is 2, the population growth model and characteristics Model features, distribution examples, pros and cons High level model of high birth rate, low mortality and high natural growth rate in developing countries, the early industrialization of Ethiopia, Tanzania, the population reproduction pattern of Kenya rapid population growth, abundant labor population younger, material demand, shortage of resources, environment, housing, employment pressure Three low mode of low birth rate, low death rate and low natural growth rate in developed countries such as Britain, Japan, Germany (negative growth), Singapore, China overcomes the population growth too much, the problem of excessive population aging, labor shortage, shortage of troops defense, pension costs increase, the heavy burden of young people The transition mode is approaching or has reached the level of developed countries in developing countries, Turkey, Argentina 4, Chinas population change model Population accelerated growth phase (1949-1957 years): reason, after the founding of the peoples Republic of China, economic development, social stability Negative population growth (1957-1961 years): three years natural disaster The rapid growth of population (1961-1970 years): high economic level, compensatory fertility Population deceleration growth phase (1970-1980 years): Family Planning Population fluctuation growth phase (1980-1991 years): population lagged effect The low growth rate of population (1992-) so far: three low mode, the natural growth