human GEOGRAPHY · Fisheries Protein for 1 billion people Inland 6%, aquaculture 23%, oceans 71%...
Transcript of human GEOGRAPHY · Fisheries Protein for 1 billion people Inland 6%, aquaculture 23%, oceans 71%...
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HUMAN
GEOGRAPHY
By Brett Lucas
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ECON. GEOG. - PRIMARY
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Overview
Primary economic activity
Resource-based economies
Agriculture
Dairy
Livestock
Commercial
Von Thünen’s land use model
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Economic Geography
How do people earn a living?
Physical environment
Cultural conditions
Technology
Politics/economic system
How does that vary by place?
How does it connect places?
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Economic Geography
Primary economic activity
Closest contact with natural resources
Generally, lowest income
Secondary: value added (manufacturing)
Tertiary: services for primary or secondary
Quaternary: information-based services
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Economic Geography
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Primary Economic Activity
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Primary Economic Geography
“Gathering” industries
Fishing
Forestry
Commercial vs. subsistence
Potentially renewable resources
Maximum sustainable yield
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Fisheries
Protein for 1 billion people
Inland 6%, aquaculture 23%, oceans 71%
Tragedy of the commons
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Fisheries
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Forestry
Commercial use or fuel wood
Coniferous (softwood) for paper, lumber
Deciduous (hardwood) for furniture, etc.
Tropical hardwood for fuel wood, furniture
And clearing land
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Forestry
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Primary Economic Activity
“The primary sector of industry” generally
involves changing natural resources into
primary products
Most products from this sector are considered
raw materials for other industries
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Primary Economic Activity
Major businesses in this sector include
agriculture, agribusiness, fishing, forestry and
all mining and quarrying industries
Nonrenewable resources
Huge capital investment: then what?
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Resource-based Economies
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Resource-based Economies
Multiple scales (from countries to towns)
Dependent on one commodity
Volatile commodity prices
Boom-and-bust cycles
Need value-added activity
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Example: Antofagasta, Chile
Founded in 19th
century for nitrate
mining
Wealth led to Chile’s
first banks
Chemical substitutes by
1930s
Port for Bolivia
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Example: Antofagasta, Chile
New technology made copper mining possible
Nationalized in 1970s
1990 boom when reopened to private investment
Today: 9% of GDP, 33% of world copper
But: foreign investment, no value-added
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Agriculture
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History of Agriculture
Hunter-Gatherers
Neolithic Revolution
Domestication of Plants and Animals
Diffusion of Agriculture
Location of agricultural hearths
Vegetative planting
Seed agriculture
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History of Agriculture
Agricultural Industrialization
The “Green Revolution”
Hybrids, scientific application of fertilizer, pesticide,
and water
Modern Agribusiness
Genetic Engineering of Crops
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Neolithic Revolution
Primary effects:
Urbanization
Social stratification
Occupational specialization
Increased population densities
Secondary effects:
Endemic diseases
Famine
Expansionism
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Agriculture
About 1/3 of Earth’s land
Three categories
Subsistence
Traditional
Commercial
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Agriculture
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Origins of Agriculture
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Vegetative Planting Hearths
There were several main hearths, or centers of origin, for vegetative crops (roots and
tubers, etc.), from which the crops diffused to other areas.
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Seed Agriculture Hearths
Seed agriculture also originated in several hearths and diffused from those elsewhere.
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Subsistence Agriculture
Subsistence agriculture is self-sufficient farming
in which farmers grow only enough food to
feed the family, pay taxes or feudal dues
The typical subsistence farm has a range of
crops and animals needed by the family to eat
during the year
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Subsistence Agriculture
Planting decisions are made with an eye
towards what the family will need during the
coming year, rather than market prices
cocoyam farmer
from Cameroon
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Commercial Agriculture
The production of crops for sale, crops intended for widespread distribution (e.g. supermarkets), and any non-food crops such as cotton and tobacco.
Commercial agriculture includes livestock production and livestock grazing.
Maximizing profit, not food security
Specialization by location
Off-farm sales
Interdependence of producers and consumers
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Classifying Agricultural Regions
Subsistence Agriculture
Shifting Cultivation
Pastoral Nomadism
Intensive Subsistence Agriculture
Commercial Agriculture
Mixed Crop and Livestock Farming
Dairy Farming
Grain Farming
Livestock Ranching
Mediterranean Agriculture
Truck Farming
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World Agriculture Regions
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World Climate Regions
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Pastoral Nomadism
The breeding and herding of domesticated
animals for subsistence
Where: arid and semi-arid areas of N. Africa,
Middle East, Central Asia
Animals: Camel, Goats, Sheep, Cattle
Transhumance: seasonal migrations from highlands
to lowlands
Most nomads are being pressured into sedentary
life as land is used for agriculture or mining
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Pastoral Nomadism
Bedouin Shepherd Somali Nomad and Tent
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Intensive Subsistence Agriculture
Wet Rice Dominant
Where: S.E. Asia, E. India, S.E. China
Very labor intensive production of rice, including
transfer to sawah, or paddies
Most important source of food in Asia
grown on flat, or terraced land
Double cropping is used in warm winter areas of S.
China and Taiwan
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Intensive Subsistence Agriculture
The Fields of Bali Thai Rice Farmers
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Potatoes & Rice Production
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World Rice Production
Asian farmers grow over 90% of the world’s rice. India and China alone account for
over half of world rice production
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Labor Force in Agriculture
A large proportion of workers in most LDCs are in agriculture, while only a small percentage of
workers in MDCs are engaged in agriculture.
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Commercial Agriculture
Value-Added
Very little of the
value of most
commercial products
comes from the raw
materials
“adding value” is the
key to high profit
margins
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Mixed Crop and Livestock Farming
Where: Ohio to Dakotas, centered on Iowa;
much of Europe from France to Russia
Crops: corn (most common), soybeans
In U.S. 80% of product fed to pigs and cattle
Highly inefficient use of natural resources
Pounds of grain to make 1 lb. beef: 10
Gallons of water to make 1 lb. wheat: 25
Gallons of water to make 1 lb. beef: 2500
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World Corn (Maize) Production
The U.S. and China are the leading producers of corn (maize) in the world. Much of the
corn in both countries is used for animal feed.
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Meat Production on Ranches
Cattle, sheep, and goats are the main meat animals raised on ranches.
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Dairy Farming
Where – near urban
areas in N.E. United
States, Southeast
Canada, N.W. Europe
Over 90% of cow’s
milk is produced in
developed countries
Value is added as
cheese, yogurt, etc.
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Dairy Farming
Locational Theory: butter and cheese more common than milk with increasing distance from cities and in West.
Milkshed: historically defined by spoilage threat; refrigerated trucks changed this.
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World Milk Production
Milk production reflects wealth, culture, and environment. It is usually high in
MDCs, especially production per capita, and varies considerably in LDCs.
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Dairy Production in the U.S.
Milk
production is
widely
dispersed
because of its
perishability
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Dairy Production in the U.S.
Cheese
production is
far more
concentrated.
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Grain Farming
Where: worldwide, but U.S. and Russia predominant
Crops: wheat
Winter wheat: Kansas, Colorado, Oklahoma, Washington
Spring wheat: Dakotas, Montana, southern Canada
Highly mechanized: combines, worth hundreds of thousands of dollars, migrate northward in U.S., following the harvest
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Wheat production
China is the world’s leading wheat producer, but the U.S. and Canada
account for about half of world wheat exports
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Tractors, per Population
Tractors per 1,000 people. Use of machinery is extensive in most MDC
agriculture, but it is much less common in LDCs
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Livestock Ranching
Where: arid or semi-
arid areas of western
U.S., Argentina, Brazil,
Uruguay, Spain and
Portugal.
History: initially open
range, now sedentary
with transportation
changes.
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Livestock Ranching
Environmental effects:
Overgrazing has
damaged much of the
world’s arid grasslands
(< 1% of U.S. remain!)
Destruction of the
rainforest is motivated
by Brazilian desires for
fashionable cattle
ranches
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Mediterranean Agriculture
Where: areas surrounding the Mediterranean, California, Oregon, Chile, South Africa, Australia
Climate has summer dry season
Landscape is mountainous
Highly valuable crops: olives, grapes, nuts, fruits and vegetables; winter wheat
California: high quality land is being lost to suburbanization; initially offset by irrigation
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Mediterranean Agriculture
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Commercial Gardens & Fruit Farming
Where: U.S. Southeast, New England, near cities
around the world
Crops: high profit vegetables and fruits demanded
by wealthy urban populations: apples, asparagus,
cherries, lettuce, tomatoes, etc
Mechanization: such truck farming is highly
mechanized and labor costs are further reduced by
the use of cheap immigrant (and illegal) labor
Distribution: situated near urban markets.
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Plantation Farming
Large scale mono-cropping of profitable
products not able to be grown in Europe or
U.S.
Where: tropical lowland Periphery
Crops: cotton, sugar cane, coffee, rubber,
cocoa, bananas, tea, coconuts, palm oil.
What are potential problems with this type of
agriculture? Environmental? Social?
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The Chisholm Trail
The Chisholm Trail
became famous as the
main route for cattle
drives from Texas to
the railheads in Kansas
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Agribusiness
Focus on minimizing risk
Producers want standard products
Farmers want guaranteed markets
Contracts between farmers and corporations
Political pressure for subsidies
Political pressure on health
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Von Thünen’s land use model
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Von Thünen’s land use model
German landowner in 1800s
Noticed pattern of agricultural land use
Three assumptions:
Isolated city (no trade)
Surrounded by homogenous landscape
All that matters is transport costs
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Von Thünen’s land use model
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Von Thünen’s land use model
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Von Thünen’s land use model
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Von Thünen’s land use model
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Von Thünen’s land use model
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Von Thünen’s land use model
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Von Thünen’s land use model
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Von Thünen’s land use model
So what?
Connections between city and country
General patterns of agriculture
Can be applied to urban settings, too
Decreased transport costs make the pattern
larger
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Desertification Hazard
The most severe desertification hazards are in northern Africa, central Australia, and the
southwestern parts of Africa, Asia, North America, and South America
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Grain Importers and Exporters
Most countries are net importers of grain. The U.S. is the largest net exporter
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The Sahel
The Sahel, which is south of the Sahara, frequently faces drought and
food shortages, as does the Horn of Africa