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The Dust Bowl

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Bison grazed which attracted prairie dogs to short grasses to easily see predators. ... shortage of grass, bison overgraze, prairie fires occur due to the heat, ... – PowerPoint PPT presentation

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Title: The Dust Bowl


1
The Dust Bowl
  • An Economic and Environmental American Tragedy

2
Interrupted Ecosystem
  • Land before interruption
  • a sea of grass 2-4 feet tall
  • little rainfall (20 per year) - up to 10 years
    of drought.

3
The Ecosystem Before Tragedy
  • Bison grazed which attracted prairie dogs to
    short grasses to easily see predators.
  • PDs then build burrows near bison.
  • Bison clean themselves in the loose dirt of the
    burrows.
  • This creates holes which collect rainfall.

4
Soil Erosion
  • Even in this ideal environment, little rain
    causes a shortage of grass, bison overgraze,
    prairie fires occur due to the heat, wind
    persists spreading both dust and fire.

5
What did farmers do to contribute to the disaster?
6
  • Moved west in masses during a wet cycle and
    continued to plow during a 10 year period of
    drought.
  • Burned off stubble after harvest subjecting loose
    soil to wind erosion.
  • Soil in the air created static electricity which
    destroyed any small amount of growth
    .
  • ERA NICKNAME WAS THE DIRTY THIRTIES

7
Consequences
  • Dust Pneumonia
  • Dust in food
  • Cars wouldnt start (static electricity)
  • All unable to make a living
  • Forced to move -- mostly to the West where there
    were rumors of farm employment.
  • Dust killed animals

8
Affected Area
9
On the move
  • They traveled the MOTHER ROAD (rt.66) to
    California.
  • Dust Bowlers received fliers requesting farm
    workers.

10
Problems of the Journey
  • Hygiene no clean water
  • No Money had to work odd jobs to afford gas to
    get from to town to town
  • Had to cross the desert with all possessions

11
  • Little opportunity to bathe disease

12
Washed clothes in ditches along the way!
13
  • They traveled the Mother Road Route 66 to
    California

14
  • People were forced to camp along the roadside

15
  • Children were without a school or nutritious food
    to eat

16
Trouble for Okies
  • Teachers and school children ridiculed Okie kids
  • Many Okie kids went to school barefooted

17
The US government set up camps in California to
accommodate the new arrivals
  • School teachers and students teased okie
    children
  • Many kids wore old flour or potato sacks

18
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19
New Deal solutions to problems
  • Restoration of pastures (rotational grazing-plant
    grass)
  • Leave stubble After plowing to hold down soil
  • Plow in furrows opposite wind direction to
    prevent wind erosion
  • Plow ACROSS a hill to prevent water erosion
  • Strip cropping with hay or sorghum to prevent
    erosion
  • Plant trees alongside fields to stop wind erosion
  • PAID FARMERS NOT TO PLANTHIGHER PRICES!
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