GEOG 2EI3 Lecture Notes - Lecture 11: Selective Breeding
8 Mar 2018
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Document Summary
Worldwide trends in agriculture: between 1700 and 1950: cropland increased from 250 million to 1. 2 billion, allowed for development of settlements, e. g. people stopped moving when they got stable food supplies and developed transportation of good. Intensification of production: a key strategy in most parts of the world: increasing world grain production from 1950-2010. Slide 6: production of cereals does not: match worldwide demand, downward trend from 2007, 2008 from global recession, grains allocated differently, 2011: 2. 3 billion tons, lowest stocks in 30 years. Slide 7: 48% of diet from grains. Slide 9: e. g. sugar cane, trying to move away our energy supply from gasoline, rates of production from biodiesel, world leaders using crops to fuel, e. g. Usa and brazil: grown rate of 20% from 2005 and accounts for 90% of transports, leads to deforestation, leading problems to food supply (aka technology used for other sources) and resources need to produce fuel.
