Chenopodium Cultivation and Formative Period Agriculture at Chiripa Bolivia
Ch. 10 Agriculture Key Issues 1-4. What is agriculture? Agriculture is the deliberate modification...
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Transcript of Ch. 10 Agriculture Key Issues 1-4. What is agriculture? Agriculture is the deliberate modification...
![Page 1: Ch. 10 Agriculture Key Issues 1-4. What is agriculture? Agriculture is the deliberate modification of Earth’s surface through cultivation of plants and.](https://reader036.fdocuments.net/reader036/viewer/2022062516/56649d8d5503460f94a75696/html5/thumbnails/1.jpg)
Ch. 10 AgricultureKey Issues 1-4
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What is agriculture?
• Agriculture is the deliberate modification of Earth’s surface through cultivation of plants and rearing of animals to obtains sustenance or economic gain.
• Where did agriculture start?• Where does it happen today in MDCs?• In LDCs?• https://www.youtube.com/watch?v=tVo_wkxH9dU
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Hunter Gatherers
• Pre-agriculture• Small groups (> than 50)• Men hunt/women gather• Daily search for food• Still done by a ¼ million people today (Artic, Africa, Australia, South
America• Nomadic, isolated
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Invention of Agriculture
Vegetative Planting• Earlier• Reproductions of plants by
direct cloning• Began in SE Asia (climate,
fishing)• Taro, yam, banana, palm• Dog, pig, chicken• West Africa, South America
Seed Planting• Later• Reproduction of plants by
planting seeds• Began in India, China, Ethiopia,
Mexico and Peru• SouthWest Asia-First to integrate
with animal domestication (cattle, sheep, goats)
Cutting stems, dividing roots
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Vegetative Planting Hearths
Fig. 10-1: There were several main heaths, or centers of origin, for vegetative crops (roots & tubers, etc.), from which the crops diffused to other areas. Carl Sauer suggested that Southeast Asia was a primary hearth.
Vegetative planting mainly began in SE Asia
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Seed Agriculture Hearths
Fig. 10-2: Seed agriculture also originated in several hearths and diffused from those elsewhere.
Important hearths: Ethiopia,
South/Central America, China and
India
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Labor Force in Agriculture
Is this a good thing in terms of development?
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Classifying Agriculture
Commercial Farming• Food for commercial consumption• Sold to food-processing companies• Less than 10% of workers• Rely on machinery (transportation,
science, GPS)• Few, large farms• Agribusiness• https://
www.youtube.com/watch?v=SRhI7vMuDf0
Subsistence Farming• Food for family consumption• Consumed on the farm• More than 50% of workers• Rely on people or animals• Many, small farms
Most important distinction: is food
consumed on or off the farm???
On the farmOff the farm
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Agriculture in LDCs
• Where are agricultural regions in less developed countries?• Shifting Cultivation• Pastoral Nomadism• Intensive Subsistence• Plantation
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Shifting Cultivation
• Climate: Humid, low latitude (hot and rainy)
• Characteristics: Slash-and-burn agriculture
• Clearing-farming-moving• Depletes soil nutrients• Small, community owned farms• Hand tools and potash• ¼ of world’s land to feed less than
5% of population
• Difficulties: Limited land, loss of nature, poor soil
• Declining—more people, less land
• Competition for land• New technology and commercial
farming• Debt-for-nature swap• http://www.youtube.com/watch
?v=WBSg5sGh2nQ
Occupies the largest
percentage of the world’s land area
Subsistence
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Pastoral Nomadism
• Climate: Arid and semiarid climate• Characteristics: Herding of
domesticated animals• 20 % of Earth, 15 million people• Size of the herd matters• Eat more grains than meat
• Middle East: camel>goat>sheep• Central Asia: horses
• Regular migration and Territoriality, Transhumance
• Once thought to be a stage
• Difficulties: Government forced resettlement
• http://www.youtube.com/watch?v=6lycmTmNCBI
Occupy only their own
territory, move with the seasons
Known as Transhumance
Subsistence
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Intensive Subsistence Agriculture
• Climate: Varies• Densely populated areas (E, S, and SE
Asia)• Characteristics: Small, fragmented
plots after generations• High agricultural density• Farming by hand, some animals and
tools• Wet rice dominant—South China• Wet Rice Not Dominant—North China• Double Cropping
• Difficulties: Reorganization after Communism
• http://www.youtube.com/watch?v=dT6gjb48_N0
Subsistence
Practiced by the largest percentage of the
world’s people…mostly in Asia
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Plantation Farming
• Climate: Found in the tropics and subtropics• Characteristics: Commercial Agriculture• Found in LDCs, owned by Europeans or Americans for profit in MDCs• Difficulties: Large farms in sparsely populated areas—must import
and provide for workers• Plantations try to make tasks last year round and do most processing
on site• http://www.youtube.com/watch?v=z0gZImNsI10
Commercial…but still in LDCs
LDCs generate money for
development by selling
export crops
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Agriculture in MDCs
• Where are agricultural regions in MDCs?• Mixed Crop and Livestock Farming• Dairy Farming• Grain Farming• Livestock Ranching• Mediterranean Agriculture• Commercial Gardening and Fruit Farming
In MDC’s, we now see less farms, less
farmers…because of better efficiency
through technology
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Agribusiness
• In the US, farms are integrated into a large food production industry known as agribusiness
• Results in large farms• Corporate owning of farms• Heavy use of machinery• Fewer farmers
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Mixed Crop and Livestock
• Location: Corn Belt—Ohio to North Dakota• Characteristics: Most crops are fed to livestock• Livestock supply manure• Reduces variations in income throughout the year• Corn and Soybeans• Difficulties: crop rotation• http://www.youtube.com/watch?v=mI5UsfxRXwA
The first group to integrate
seed agri and domestication of animals was SouthWest Asia
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Dairy Farming
• Location: NE US, SE Canada, NW Europe• Characteristics: Dairy used to be considered luxury item• Milkshed—ring surrounding a city from which milk can be supplied without
spoiling.• Grown from 30 to 300 miles• Farms further away=butter and cheese• Difficulties: Labor intensive, feeding cows in winter—high operating costs, low
milk prices• Declining: Higher yield from cows, more mechanized, urbanization, smaller farms
not profitable• http://www.youtube.com/watch?v=-2LiVPczCr8
The further away from the city a
dairy farm is, the less likely it is to
make fresh milk…what would it make
instead?
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Grain Farming
• Location: Kansas, Colorado, Oklahoma-Winter Wheat Belt• Dakotas, Southern Canada, Montana-Spring Wheat Belt• Characteristics: Grown for consumption by humans, not animals• Wheat-highest value per unit rate, world’s leading export crop• Difficulties: Some firms have fields in both areas to maximize profit
vs. costs• http://www.youtube.com/watch?v=Axj8iVND8JI
Worldwide, China, the US, Russia and India
produce the most commercial grain
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Livestock Ranching
• Location: Semiarid/Arid land that can’t support crops• Characteristics: Columbian Exchange• Cattle Drives to Chicago• Barbed wire fixed location ranching• Difficulties: Ranching is an inefficient use of land, mainly just in Western
states• Also in Spain, Portugal, Argentina, Uruguay and Brazil• Sheep=New Zealand, Australia, Middle East• http://www.youtube.com/watch?v=8gA0gGK6Mew&playnext=1&list=PL6C
627E7A8B932989&feature=results_main
In LDCs, dry lands are used for pastoral
nomadism. In MDCs, dry lands are used for
ranching.
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Mediterranean Agriculture
• Location: Southern Europe, North Africa, California, Chile, South Africa, Australia
• All on the Western coasts• Characteristics: Olives, grapes, fruits, vegetables• Horticulture=The growing of fruits, vegetables and flowers.• Difficulties: losing land to housing and irrigation
These are all countries known for
their wine…why?
http://www.youtube.com/watch?v=q9VbtND-aNA
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Commercial Gardening and Fruit Farming• Location: US Southeast• Characteristics: Truck Farming= Middle English word for bartering• Apples, asparagus, cherries, lettuce, mushrooms, and tomatoes• Highly efficient: Machines, migrant workers, new seeds• Difficulty: Cost of machinery, immigration issues for workers• http://www.youtube.com/watch?v=R3EpFTyN26E• http://www.youtube.com/watch?v=DBK0w0rr4wU