unit 6 Flashcards
agriculture
often controlled by environment and climate
cool mid latitudes
wheat, barley, livestock, dairy cows
warm mid latitudes
vegetables, fruit, rice
mediterranean (not just the region)
grapes, olives, dates
grasslands
continental steppe, cattle, ranching, sheep, goats, horses, camels
sub-tropical
rice, cotton, tobacco
tropical
coffee, sugar, tea, cacao, pineapple
modification
humans can modify environment to promote their agriculture
modifying space
clearing or modifying land so crops grow
modifying water
irrigation, old and new strategy to control water if it is sporadic
sporadic water
supplement is not enough
modifying light
artificial lights to aid in photosynthesis
modifying nutrients
humans use fertilizers to help plants grow more quickly
modifying for suitable temperature
greenhouses and other shelters allow plants to grow in places they may not be suited in
cost of land
what can be economically grown, US farms get increasingly big, scale up production so efficiency will compensate for other costs and profits
cost of labor
harvest of planting certain crops has not yet mechanized, so agriculture can be labor intensive
cost of machinery
high upfront costs but more efficiency, can save money in the long run
intensive labor
requires lots of labor and capital, small plots near population centers, high yield per acre (ex: cotton in the past)
extensive labor
requires less labor and capital, larger plots farther away from population centers, low yield per acre (ex: shifting cultivation, livestock farming)