GEOG101 Lecture Notes - Lecture 4: Demographic Transition, Distance Decay, Doubling Time
25 Aug 2015
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The point at which sanitation and medial innovations combined to produce rapidly lowering death rates and reduced child mortality in developing countries is: (graph) Pop geo statistical basis of pop vs spatial/areal links. Slide 3 world pop growth (child mortality, sanitation) Black circle increase in rate, dampening of mortality yet still dramatic growth. Reduced # of resulting births will reduce pop by 400 million. Slide 5 world pop growth (mortality, sanitation, medicine) arrow: aids: 400 million fewer births by 2050. Slide 8 pop in eurasia and africa. Future pop = current pop + (births-deaths) + (immigrants emigrants) All clues give about a country"s level of development. Slide 14 crude mortality rates (developed/developing countries in circles) Slide 16 since 1990, global doubling time have been increasing for the first time in recorded history. Trivia; highest rate of natural increase is niger at 3. 6% pop"n doubles every 19. 5 years. Pop"n decrease, low births and deaths (bottom box)
