GEOG 2HI3 Lecture 4: Geog 2HI3 Week 4 – Textbook, Lecture and Tutorial
14 Feb 2017
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Document Summary
Week 4 relating population, morality and society. Lecture 5 relating population, mortality and society. Optimum population of people that can be sustained on a given area of land. Criticized by environmental management experts for quantifying the sustainable limit of different land-use practices/farming systems; i. e. crop plants and livestock. Population increases rapidly, resources increase less rapidly. Mathematically population increases exponentially and resources arithmetically. When the level of subsistence increases, population increases. Since productivity cannot be maintained with population growth over the long term, population requires checks to keep it in balance with carrying capacity. Individual decisions regarding work and the number of children determine the expansion or contraction of population and production. Checks will come into operation as population exceeds subsistence level. The nature of these checks will have significant effect on the rest of society. Positive checks include war, poverty and disease; misery is the mechanism which balances human population size and available resources.
