GEOG 1HA3 Lecture Notes - Lecture 1: Agricultural Productivity, Population Ageing, Population Pyramid
3 Mar 2017
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Population growth theory: malthus: thomas robert malthus (1766-1834, writing at time world hit 1 billion population, people led by malthus concerned about population, malthus" argument: look at relationship between 2 things over time. Global food supply increases in linear fashion. Agricultural productivity food didn"t increase in linear fashion but actually. Contraception people did actually begin to control fertility: was malthus correct? exponential. Population growth theory: fertility transition: fertility transition: a model to explain changes in population due to social/cultural and economic processes that affect levels of fertility, more developed world: 19th & early 20th century. Economic growth: less developed/developing world: late 20th century & today. Public health/family planning education: fertility transition = cultural transitions. Government population policies: governments have ability to alter population in 3 main ways, increasing/decreasing births via (cid:498)natal(cid:499) policy. Pro-natal (encouraging birth ex: canada baby bonus) Anti-natal (discouraging birth ex: china 1 child policy: decreasing (or increasing) deaths via health-care, etc, encouraging/discouraging migration via immigration laws.
