3 ms·
9x less plantations: 0.58 cows per hectare - http://publications.naturalengland.org.uk/file/62085 http://publications.naturalengland.org.uk/file/62085 274 kg
by abainbridge 8y ago
9x less plantations:
0.58 cows per hectare - http://publications.naturalengland.org.uk/file/62085 http://publications.naturalengland.org.uk/file/62085
274 kg meat on a cow - https://www.vidarholen.net/contents/junk/cow.html https://www.vidarholen.net/contents/junk/cow.html
10470 kJ of food energy per kilo of beef - https://en.wikipedia.org/wiki/Beef https://en.wikipedia.org/wiki/Beef
1000 days to rear a cow - https://www.withouthotair.com/c13/page_77.shtml https://www.withouthotair.com/c13/page_77.shtml
Therefore 0.58 * 274 * 10470 / 1000 = 607 kJ of cow, per day, per hectare.
In comparison, wheat yields 3120 kg per hectare per year - https://www.statista.com/statistics/237705/global-wheat-production/ https://www.statista.com/statistics/237705/global-wheat-prod...
1368 kJ per kg - https://en.wikipedia.org/wiki/Wheat https://en.wikipedia.org/wiki/Wheat
Therefore 3120 * 1368 / 356 = 11989 kJ of wheat, per day, per hectare.
So, by my calculations, you need 19.75x more land to grow a kJ of beef than a kJ of wheat.
- deleted 8y ago[deleted]