Yuma Valley - Arizona state - USA - PowerPoint PPT Presentation

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Yuma Valley - Arizona state - USA

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Yuma is in the extreme south west of Arizona on the R. ... Dole Salad Packing Factory. Mexican migrant workers. Seasonal low paid work. Competition for Water ... – PowerPoint PPT presentation

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Title: Yuma Valley - Arizona state - USA


1
Yuma Valley - Arizona state - USA
2
Yuma is in the extreme south west of Arizona on
the R. Colorado next to California and the border
with Mexico.
Yuma
3
Temperature very hot. 35C in summer.
Annual rainfall total from 1993 to 2002 (about 3
inches) 8cms a year on average
4
Yuma Winter Salad Bowl Capitol of the USA
5
Colorado river - irrigation channel
Lot of evaporation loss.
6
Furrow irrigation
7
Yuma sprinkler system
Uses less water than furrow irrigation. Cools the
soil surface temperature when salad starting to
grow.
8
Central pivot sprinklers
Circular fields
9
Drip irrigation feeds water slowly and directly
to roots
10
Dole Salad Packing Factory
11
Mexican migrant workers
Seasonal low paid work
12
Competition for Water
13
Colorado water runs out.
14
Rising costs
Too much fertiliser used
15
Rise of organic farming
16
Farming is run by big businesses
Agribusiness
Small family farms dying out
17
Young people need specialist education for a
career in farming
18
The River Colorado
One giant plumbing system?
19
Is the farming sustainable?
20
Back to the Desert?
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