ag unit lecture notes Flashcards
history of ag
hunting and gathering, extensive travel in small groups with few tools, poor nutrition , short life expectancy, specific gender roles
neolithic revolution/1st revolution
diff places over lots of time, begin to rely on crops (pineapples and bananas, for ex), vegetative planting first, then seed eg, plant and animal domestication (plants came first),
results of the first ag revolution
longer life, reliable food sources, job specialization, wider gender gaps, distinction between settled people and nomades (fight over land), famine
nomads
people who move from place to place
carl sauer
geographer with theories about the origins of domestication
what did Carl Saur believe
that the first area with ag practices was southeast Asia, first area to use seed practices were fertile crescent, east china, Meso America
what did the crusades lead to
more trade between Europe and asia
what did the age of exploration lead to
increased trade with africa then americas
what did each hearth have
adaptive strategies
second ag revolution
started in europe in 1600, learn techniches for more food/efficiency, more fertilizer, crop rotation, rapid population growth
fallow
not planting in an area for a year
tradgedy of the commons
book by garret hardin, “freedom in a common brings ruin to all” basically supported education
3rd ag revolution(green revolution)
starts with high yeald seeds, increased mechanical and chemical farming, technology to increase yealds, hybrid plants, genetic enhancement, diff fertilizers, pesticides/herbicides (not environmentally friendly)
in the future of ag
some have suggested planned economies, however those weren’t successful in the past. some say change in demand for food types
