Agriculture
The purposeful rending of crops and raising of livestock in order to produce food and fiber
How much of all land is committed to agriculture?
1/3
What percentage of the population in LDCs work in subsistence agriculture?
1/2
How much of the population of developed countries work in commercial agriculture?
4.2%
When did farming decline?
1950-2010
What increased when farming declined?
Secondary and tertiary jobs
Hunters and Gatherers
Intentional gathering of grains, hunting, and fishing
Non-Permanent Societies
Small populations; early societies lived in wetter and better environments
First Agricultural Revolution
Plant agriculture development and animal domestication; vegetative plantings; seed agriculture
When did the First Agricultural Revolution happen?
14,000 years ago
Vegetative Plantings
Shoots, stems, and roots of existing wild plants were collected and grown
Seed Agriculture
Seeds of strong plants were collected, replanted, fertilized, and relocated
Where did planting first start?
Southeast Asia, due to the variety of plants
Animal Domestication
Dogs, pigs, and chickens were the first to be domesticated
Where did Animal Domestication first happen?
Southeast Asia
When did Animal Domestication happen?
8,000 years ago
Animal Domestication’s relation to Southwest Asia
First region to integrate use of animals and seed agriculture
How did Southwest Asia use Animal Domestication?
They used animals to plow land.
How many species in the world are domesticated?
40
Colombian Exchange
In the 1500s, exploration resulted in relocation diffusion of new world crops to the rest of the world
How is diffusion in the Colombian Exchange limited?
Diffusion limited by climates
How did crops and animals diffuse?
Trade
Second Agricultural Revolution
A series of innovations, improvements, and techniques used to improve the output of agricultural surpluses
When did the Second Agricultural Revolution occur?
1600s