GEOG 1HA3 Lecture Notes - Natural Disaster, Mortality Rate, Population Geography
12 Feb 2014
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Document Summary
Population geography ii: social- cultural determinants of population change. Fertility: measures: crude birth rate (cbr) = b/p x 1000. Global fertility rate is 2. 6, so replacement rate is a measure of how many children are needed to replace the population (approx. Fertility rates are influenced by a variety of factors, many of which are social-cultural in nature. Biological: age, older population = lower fertility, nutrition and well-being (war and famine decreases fertility) Economic: economic development (kids are more expensive in developed countries) Cultural: marriage, could not avoid kids in marriage 100 years ago, contraceptive use, abortion depends on culture. Mortality: measures: crude death rate (cdr): d/p x 1000. Age of the population: infant mortality rate (imr): d(-01)/b x 1000, life expectancy: average number of years in life. Variability of cdr and le reflects variations in: access to health-care services, economy of a country, food supply, obesity can decrease life expectancy, environmental conditions i. e. sanitations.
