Ecological .docx

# Ecological .docx - Ecological Footprint Part 1 Translating...

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Ecological Footprint Part 1: Translating Consumption into Land Use Case Study: Energy Consumption Question: How much land would be required to produce all the currently consumed commercial fossil energy sustainably? If the Optimistics estimates claim that best technology can produce up to 80 Gj/ha/yr from ethanol, and in 2003, Statistic Canada recorded a net domestic consumption of energy 10,477 petajoules, 84% of it was from fossils, In the same year, 31.5 people lived in Canada 1Pj=1000000 Gj ANSWER Therefore, each Canadian would require how many hectares? If 80 Gj= 1 ha And yet in 2003 alone, 10,477 Pj was produced, But fossil fuel energy was only 84% of the total, Therefore, 84 100 X 10477 = 8800.68 Pj The domestic consumption energy=8,800.68 Pj If 80 Gj of energy is produced in 1 ha and, 1 Pj=1000000Gj

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Therefore, 8.0 X 10 -5 Pj= 1 ha What of 8,800.68 Pj Therefore, 8800.68 8.0 X 10 5 The land required= 110008500 ha And if the population of Canada is 31.5 million, the each Canadian will require; 31.5 million = 110008500 ha 1 person=? 1 person = 110008500 31500000 Each Canadian requires=3.49 ha Part 2: Calculating the Canadian Ecological Footprint a) Agricultural Land Required to Grow Food Table 2 provides data on annual food consumption in kilogrammes of the average Canadian, based on 2007 data from Statistics Canada.
Table 2: Canadian Food Choices (2007) and Associated Land Requirements Food Weight (kg) Average yield (kg/ha) Agricultural land required (ha) Milk products 224 600 11/300 Grains 87.1 2646 871/26460 Meat-beef 45* 187 45/187 Meat-pork 31* 500 31/500 Meat-chicken 46* 500 23/250 Fresh produce (vegetables) 175.4 15,000 877/75000

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• Summer '17
• davy

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