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deforestation
the loss or destruction of forests, mainly for logging or farming
desertification
lower land productivity caused by overfarming, overgrazing,
seasonal drought, and climate change
,barbed wire
used for fencing and invented to keep cattle from trampling crops
Third Agricultural Revolution
20th century; tractor; monoculture; irrigation; petroleum;
Agro-Biotechnology; GMOs
Green Revolution
Rapid diffusion of new agricultural technology, especially new
high-yield seeds and fertilizers.
,GMOs
Crops that carry new traits that have been inserted through
advanced genetic engineering methods
pastoral nomadism
A form of subsistence agriculture based on herding domesticated
animals.
ranching
a form of commercial agriculture in which livestock graze over an
extensive area
, shifting cultivation
farmers aim to maintain soil fertility by rotating the fields they cultivate
plantation
an estate where cash crops are grown on a large scale
(especially in tropical areas)
truck farming
Commercial gardening and fruit farming in the United States