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Agriculture and Rural Land Use

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Agriculture and Rural Land Use Unit V Physical Factors Appropriate environment for cultivating varies depending on the type of crop Farmers can mold the environment ... – PowerPoint PPT presentation

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Title: Agriculture and Rural Land Use


1
Agriculture and Rural Land Use
  • Unit V

2
Introduction
  • Nomads
  • HUNTERS AND GATHERERS
  • AGRICULTURE
  • The process of growing plants or raising of
    animals to produce food for sustenance or sale at
    the marketplace
  • Farming practices differ in MDCs vs. LDCs
  • In Asia, most people are SUBSISTANCE FARMERS
  • Growing only enough food to feed their family
  • In MDCs, COMMERCIAL FARMING dominates
  • Farms produce food to be sold in groceries and
    markets, not just for the farmers themselves

3
Classifying Agricultural Regions
  • LDCs subsistence agriculture
  • MDCs commercial agriculture
  • Subsistence vs. commercial agriculture
  • Subsistence agriculture is the production of food
    primarily for consumption by the farmers family
  • Commercial agriculture is the production of food
    primarily for sale off the farm

4
Key Questions
  • Where did agriculture originate? How and where
    did it spread?
  • What are the characteristics of the worlds
    agriculture regions? How do these regions
    function?
  • How has agricultural change affected the
    environment and peoples quality of life?
  • How does diet, energy use, and varying agrarian
    technology relate to agricultures origination?
  • What are different types of extensive and
    intensive agricultural practices? What are
    settlement patterns and landscapes related to
    each agriculture type?

5
Cont
  • What are land survey systems, environmental
    conditions, and cultural values linked to each
    agriculture type?
  • Why do different agricultural practices exist
    where they do?
  • What is the von Thunen model?
  • What is the status of food supplies throughout
    the world? Can humans increase the food supply
    and reduce starvation and malnourishment?

6
Origin of Agriculture
  • An evolution of knowledge over thousands of years
  • As humans constantly touched and handled plants
    while gathering food, innovations occurred and
    diffused from multiple hearths (places of origin)
  • According to CARL SAUER humans first learned how
    to grow plants through VEGETATIVE PLANTING
  • Cutting off a stem of another plant or by
    dividing up roots of a plant

7
Cont
  • It is believed women were responsible for
    discovering vegetative planting because of their
    sociological position as gatherers and medicinal
    healers
  • Later humans make the leap to
  • SEED AGRICULTURE
  • Farming is through planting seeds rather than
    simply planting part of the parent plant
  • Leads to higher crop YIELDS because there are so
    many seeds

8
Agricultural Hearths
  • Carl Sauers theory of a vegetative hearth argues
    that vegetative farming knowledge first
    originated in SE ASIA
  • Climate and terrain there would have supported
    the growth of root plant that are easily divided,
    such as taro, yam, banana, and palm
  • From the hearth, it diffused north and east to
    China and to Japan, and then west toward SW Asia,
    Africa, and the Mediterranean

9
Other vegetative hearths
  • Others emerged through INDEPENDENT INNOVATION
  • NW South America
  • West Africa

10
First Agricultural Revolution
  • Sometimes called the NEOLITHIC REVOLUTION
  • Brings SEED AGRICULTURE and the use of
    animals/DOMESTICATION in the farming process
  • About 12000 years ago
  • Replaced nomadic hunting
  • Human groups able to stay in one place
  • Leads to
  • population growth
  • Build communities
  • Produce more food
  • Increased CARRYING CAPACITY
  • Development of civilization/culture

11
SEED AGRICULTURAL HEARTHS
  • Western India
  • Diffusion to SW Asia
  • Crop innovation Wheat and Barley
  • SW Asia (Tigris/Euphrates rivers)
  • Diffusion to Europe N. Africa NW India/Indus
    river area
  • Crop innovation Integrated seed agriculture with
    domestication of herd animals such as sheep,
    cattle, and goats

12
Cont
  • N. China
  • Diffusion to S. Asia and SE Asia
  • Crop innovation Millet
  • Ethiopia
  • Diffusion to NONE
  • Crop innovation Millet
  • S. Mexico
  • Diffusion to Western Hemisphere
  • Crop innovation Squash and Corn
  • N. Peru
  • Diffusion to Western Hemisphere
  • Crop innovation Squash, cotton, beans

13
Second Agricultural Revolution
  • After fall of Rome around 500 CE, farming grew
    into a feudal village structure
  • During Middle ages most farmers use SUSTENANCE
    FARMING in an
  • OPEN LOT SYSTEM
  • One in which there was one large plot of
    community farmland that all villagers worked to
    produce a crop to eat
  • As capitalism grew, feudalism diminished and
    villages enclosed their farmland

14
Enclosure Movement
  • Gave individual farmers their own land marks a
    shift in agriculture from CLUSTERED RURAL
    SETTLEMENTS to DISPERSED RURAL SETTLEMENTS
  • Most influential during the 17th and 18th
    centuries during Englands Industrial Revolution
  • Growing industry and decline of Feudalism leads
    to URBAN MIGRATION
  • Former farmers moving to the cities for work
  • Caused a jump in food demand from farms into
    cities
  • With demand comes innovation

15
2nd agricultural revolution innovation
  • Better collar for oxen
  • Use of horses instead of oxen
  • New fertilizers
  • Field drainage
  • Irrigation systems
  • Storage systems
  • ALL INCREASED YIELD and ENCOURAGE POPULATION BOOM

16
Major Agricultural Production Regions
17
Subsistence Agriculture
  • Practiced in LDCs
  • 3 Types
  • Shifting cultivation
  • Intensive subsistence
  • Pastoralism

18
1. Shifting Cultivation
  • EXTENSIVE AGRICULTURE
  • Large amts. Of land not as much food
  • Farmers rotate the fields they cultivate to allow
    the soil to replenish
  • Different than CROP ROTATION
  • Found often in the TROPICAL ZONES (rain forest
    regions in Africa, Amazon river basin in S.
    America, and SE Asia)
  • Topsoil is thin in these areas means less
    nutrients
  • Mainly due to heavy rains that wash it away

19
Cont
  • SLASH AND BURN
  • SWIDDEN
  • Cleared land
  • Not dependent on technology
  • May utilize INTERTILLAGE
  • Mixing various seeds on one plot of land
  • Each plot will last 2-3 years then they move on
  • FALLOW
  • The land not being used

20
Cont
  • Use A LOT of land
  • 25 of earths land
  • Cannot produce large amounts of food
  • Because of this many have tried to switch to
    commercial forms of farming instead
  • May have criticisms from local culture

21
2. Intensive Subsistence Agriculture
  • INTENSIVE AGRICULTURE
  • Small amts. Of land large amount of food
  • Make the most use of land
  • But still SUBSISTENCE AGRICULTURE
  • Usually found in highly populated areas
  • China, India, SE Asia

22
Cont
  • Rice is the dominant intensive susbsistence
    agriculture crop in S. China, India, SE Asia, and
    Bangladesh
  • Summer rainfall is abundant
  • Where winters are too cold for rice grains are
    grown
  • Some places may engage in DOUBLE CROPPING

23
Pastoralism
  • The breeding and herding of animals to produce
    food, shelter, and clothing for survival
  • Usually practiced in places with little arable
    land
  • Can be sedentary or nomadic
  • N. Africa, Central and Southern Africa, Middle
    East, Central Asia

24
Cont
  • Transhumanence
  • The movement of animal herds to cooler highland
    areas in the summer to warmer, lowland areas in
    the winter
  • Pastoral farmers usually trade with local farmers
    for food/supplies
  • Depend on Trade for survival
  • Overall it is declining since the land they use
    is being used for other things

25
Mediterranean Agriculture
  • Primarily associated with the mediterranean sea
    area and places with hot, dry summers and mild,
    wet winters.
  • California, Chile, S. South Africa, South
    Australia
  • Wheat, barley, vine and tree crops, grazing
  • Olives, grapes, and figs are staple crops
  • Can be Intensive or Extensive depending on crop
  • Can be Subsistence or Commercial

26
COMMERCIAL FARMING
  • Mixed crop and Livestock farming
  • Ranching
  • Dairy
  • Large scale grain
  • Plantation (mainly practiced in LDCs)

27
Mixed Crop and Livestock Farming
  • Involves growing crops AND raising animals
  • Most crops used to feed the animals
  • This produces manure fertilizer for sale and
    goods such as eggs
  • Most income comes from animal products
  • Reduce dependence on seasonal harvests
  • Europe and E. North America
  • Near Urban areas mainly
  • May engage in crop rotation

28
Ranching
  • Commercial grazing, or the raising of animals on
    a plot of land on which they graze
  • Usually extensive
  • Cattle and Sheep in demand for wool and meat
  • Usually practiced in areas too dry to support
    crops
  • USA, Argentina, S. Brazil, Uruguay
  • Declining in practiced

29
Cont
  • Many US ranches are being converted to
    fattening ranches on which fixed lot cattle are
    fattened then slaughtered
  • Also found in Tropical areas of Latin America and
    N. Mexico
  • Too wet to grow crops there
  • Decline in ranching due to cost vs. crops

30
Dairying
  • Growth of milk based products for the marketplace
  • Usually close to the marketplace
  • Usually small and labor intensive
  • CAPITAL INTENSIVE FARMS vs. LABOR INTENSIVE FARMS
  • MILKSHED
  • Has expanded with technology along with the
    amount a cow can produce

31
Large Scale grain farms
  • Grains most often grown to be exported to other
    places for consumption
  • Canada, US, Argentina, Australia, France,
    England, and Ukraine
  • Ukraine once considered Russias breadbasket
  • US worlds largest producer
  • Wheat is leading export crop
  • US and Canada produce ½ of the worlds grain
  • Most grain worldwide is grown to feed animals
  • Saw expansion during the industrial revolution
  • Usually highly mechanized and thus Capital
    Intensive
  • McCormick Reaper
  • The Combine

32
Plantation Farming
  • Large farms specializing in one or two crops
  • Tropical and subtropical zones in colonized areas
  • Coffee, tea, pineapples, palms, coconuts, rubber,
    tobacco, sugarcane, and cotton
  • Usually in LDCs but owned by companies in MDCs
  • Usually in coastal areas with easy access to
    exports
  • Still Labor intensive

33
Rural Land Decisions on Farm Locations
34
Physical Factors
  • Appropriate environment for cultivating varies
    depending on the type of crop
  • Farmers can mold the environment
  • Environmental determinism vs. possibilism vs.
    cultural determinism
  • Farmers evaluate
  • SOIL
  • Depth, texture, nutrient composition, acidity
  • RELIEF
  • shape of the field includes slope and altitude
  • Might look at sun exposure time
  • Flat lands are best sloped are difficult to
    irrigate
  • Altitude can affect temperature
  • CLIMATE
  • TEMP and RAINFALL are most influential factors
  • Different crops require different water and temp

35
Political-Cultural Factors
  • Political and cultural factors also influence
    agricultural decisions
  • Ex. Hinduism holds cattle sacred It is taboo in
    Islamic religions to eat pigs
  • Ex. Immigrants often carry with them their
    homelands farming practices and food preferences
  • Food taboos not always religious although
    nutritious the US does not eat horse

36
Cont
  • Political decisions also make an impact
  • In LDCs governments encourage use of tech
  • During Green Revolution (3rd agricultural
    revolution 1960s-1990s) many LDCs tried to
    subsidize the use of efficient seed types that
    were more expensive
  • European Union pays farmers to NOT grow crops in
    an attempt to eliminate massive surpluses that
    drive prices down to nothing
  • National treasure crops France (grapes)
  • France also turns its lower quality grapes into
    biofuel

37
Economic Factors
  • Land rent
  • The price a farmer must pay for each acre of land
  • A farms location is related to how much money
    the farmer can make from a crop to pay the rent
  • Rent is cheaper farther away from a city
  • Therefore extensive farming takes place farther
    away from the city

38
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39
Agricultural Location Theory
  • Von Thunen 19th century German economist
  • Model attempts to explain and predict where and
    why various agricultural activities take place
    around a citys marketplace
  • EXPLAINS and PREDICTS
  • Agricultural land use patterns

40
Von Thunen model
  • Contains a Central Marketplace
  • Farmland is equally farmable and productive
  • Only one form of transportation
  • Only variable that could change (according to Von
    Thunen) was distance
  • Results in concentric rings of Agricultural
    activities
  • Moving outwards from a marketplace results in
    more extensive farming Intensive agriculture
    took place more towards the center

41
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42
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43
Explanation
  • Land rent and Transportation costs explain
    pattern
  • Closer to city more expensive
  • More perishable crops are closer

44
Usefulness of Model
  • If you only have one variable Transportation
    costs then it is useful
  • Unfortunately we have more variables
  • He tried to remodel the model later with the
    introduction of a river
  • Tried to introduce differing soil qualities later
  • Overall it shows the INFLUENCE OF DISTANCE in
    human decision making
  • Like all models, researchers try to use his model
    to predict future land use

45
Settlement Patterns in Villages
  • Village
  • May vary by culture
  • Usually related to function and environment
  • In Europe, villages were often clustered on a
    hillside to leave the flatlands for farming and
    village protection
  • In lowland areas a linear pattern emerges
    following the river (long lot system in France)
  • Many places built with a grid pattern with
    geometric boundaries (USA)
  • Throughout Europe, Asia, Africa a round pattern
    space in middle for cattle

46
Housing Materials
  • WOOD
  • Eurasia, US Pacific Coast, N. America, Australia,
    Brazil, Chile
  • STONE
  • Europe, Egypt, India, W. China, Yucatan, Mexico,
    S/Central Africa, Middle East
  • GRASS AND BRUSH
  • Low latitude regions African Savanna, E. African
    Highlands, S. Africa, S. American highlands, N.
    Australia
  • POLES AND STICKS
  • Africa, SE Asia, W. Africa, Amazon Basin
  • SUN DRIED BRICKS
  • Middle East, Middle and S. America, N. China,
    African Savanna, N. Africa
  • OVEN BAKED BRICKS
  • Modern, contemporary areas in MDCs

47
Modern Commercial Agriculture
48
Third Agricultural Revolution
  • Green Revolution evolves from the 3rd
    agricultural revolution
  • Distributed mechanized farming, chemical
    fertilizers on a global level
  • Farming and food processing were at different
    sites

49
Industrializing the farm process
  • Harvest and ship off for marketing and
    distribution
  • Factory system
  • AGRIBUSINESS
  • The system of food production involving seed
    development to marketing and sale of the food
    products
  • Integral to US and Global Economy
  • Think about milk before and after the 3rd
    agricultural revolution

50
Globalization of the farming process
  • Colonialization/ Imperialism led to
    core/periphery regions
  • Colonies used to supply
  • Neocolonialism/Post colonialism
  • Many foods in grocery stores grown in LDCs and
    shipped to MDCs
  • TRUCK FARMS- growing a crop to supply a distant
    market

51
Human Impact of the Industrialization of
Agriculture
  • Local farmers forced to integrate into the larger
    AGRIBUSINESS
  • Agriculture companies subcontract with the locals
  • Local flower farms forced to close since they
    cannot compete with TRUCK FARMS
  • In 1920 in US 1 in 3 lived on a farm
  • In 1978 only 1 in 28

52
Cont
  • In LDCs farmers are forced to sell their land
  • LDCs rely on exports too much and dont supply
    their own people
  • Profits in LDC farms not reinvested

53
Green Revolution
  • 1940s-1990
  • Developed hybrid high yield seeds
  • Dramatically improves output
  • Started out with US research into improving
    Mexicos wheat grain production
  • Also developed new fertilizers and pesticides to
    protect and nourish new crops
  • The miracle of the revolution was diffusion of
    higher yield grains
  • Nobel Prize given to Norman Borlaug for work to
    reduce world hunger

54
Downside
  • Less labor needed
  • Higher yield seeds more prone to viruses and pest
    infestation
  • Some seeds not farmable in certain areas
  • Some argue it has increased economic inequality
    in the periphery
  • May cause pollution and soil contamination

55
Biotechnology
  • Using living organism to produce or change plant
    or animal products
  • GENETIC MODIFICATION
  • Uses scientific manipulation of crop and animal
    products to improve agricultural products and
    activity
  • BIOREVOLUTION
  • The extension of scientific innovation to all
    crops and animal products

56
FAST FACT
  • The US produces nearly 63 percent of the worlds
    genetically modified crops
  • 33 of US corn and 55 of US cotton is
    genetically modified
  • Biotech research is designing bananas containing
    vaccines against hepatitis

57
Controversies/Benefits of Genetically Modified
foods
  • Benefits
  • Taste
  • Reduce malnutrition
  • Increase yields
  • Improved resistance to disease, pests, and
    herbicides
  • New products and growing techniques
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