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Unformatted text preview: Environment, Food and People- Lecture #3 (Sept 29/09)- Agriculture and the Physical Environment - Solar Energy o Latitude and reflection (dark things=attract light and white things=reflect light) o Drives carbon and nitrogen cycles (photosynthesis) - If you want your lawn to be greener, you would put more nitrogen into it o Temperature - People believe that if you grow more plants then itll help out global warming - Lower temperatures, not as much grows - If it gets too hot, growth level start to decline rapidly - It depends on what youre growing o Importance of seasonality- Further you are away from equator the greater the seasonality (E.g. Whitehorse in July theres sunlight all day, middle of winter the sun doesnt rise) - Big impact on growth patterns - Get all sunlight so they growth but nothing comes from it, because the growing season is too short o Length of growing season - In Toronto its from May 24 th-Thanksgiving - Global Warming o More and more carbon in the atmosphere, which doesnt let things out...
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This note was uploaded on 12/05/2011 for the course GEOGRAPHY Env food n taught by Professor St.george during the Fall '10 term at University of Toronto- Toronto.
- Fall '10