vulnerability, resilience, and robustness to urban water scarcity a case from cochabamba, bolivia
DESCRIPTION
Vulnerability, Resilience, and Robustness to Urban Water Scarcity A Case from Cochabamba, Bolivia. Amber Wutich Postdoctoral Research Associate Global Institute of Sustainability Arizona State University. Presentation Format. Part 1: Framework, Theory, and Hypotheses Part 2: - PowerPoint PPT PresentationTRANSCRIPT
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Vulnerability, Resilience, and Robustness to Urban Water Scarcity
A Case from Cochabamba, Bolivia
Amber WutichPostdoctoral Research AssociateGlobal Institute of Sustainability
Arizona State University
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Presentation Format
Part 1:
Framework, Theory, and Hypotheses
Part 2:
Urban Water Scarcity in Ethnographic Context
Part 3:
Testing Relationships
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What is “social vulnerability”?
And how does it relate to resilience?
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Vulnerability, Resilience, and Robustness
Robustness the state (or capacity) of a system to absorb a stressor without adapting
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Vulnerability, Resilience, and Robustness
Resilience
Robustness
the state (or capacity) of a system that is able to adapt to a stressor
the state (or capacity) of a system to absorb a stressor without adapting
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Vulnerability, Resilience, and Robustness
Vulnerability
Resilience
Robustness
the state (or capacity) of a system that is unable to adapt to a stressor
the state (or capacity) of a system that is able to adapt to a stressor
the state (or capacity) of a system thatcan absorb a stressor without adapting
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Advantages of the Framework
(1) Integrated social & ecological approach
(2) Nested scales
(3) Surprise & transformation
(4) Complex outcomes
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What is urban water scarcity?
What theories inform our understanding of it?
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Livelihoods Theory
Assets
Economic assets
Social assets
Access
Right to water
Ability to obtain water
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Case Study: Cochabamba, Bolivia
Relief Map of Bolivia
South America
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Hydrology of the Cochabamba Valley
From Stimson et al. 2001Map depicting ground and surface water in the Cochabamba Valley.
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The City of Cochabamba
North side of Cochabamba South side of Cochabamba
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Urban Water Scarcity in Villa Israel
Households buy most of their water from delivery trucks at retail prices.
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Water Vendor Routes
RIVERBED
TAXI STOP
CHURCH
MARKET SCHOOL
MAININTERSECTION
MAINSOCCERFIELD
COMMUNITYENTRANCE
X
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Community Tap Stand System
Ten tap stands distribute water from two small community wells.
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Informal Water Exchange Networks
Neighbors, friends, and family give each other water in a pinch.
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VulnerabilityElimination of water tasks
ResilienceWater conservation
RobustnessAdequate water (pppd)
Household
ASSETS
Tap stand system
Operationalization of Hypotheses
Water exchangesystem
EconomicWell-being
ACCESS
Water deliverytrucks
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Field Methods
• 18 months of fieldwork (June 2003 to July 2005)
• Bolivian-American collaboration
• 4 months of participant-observation
• 2 months of protocol development and testing
• 5 two-month cycles of semi-structured interviews-- with 65 randomly-selected households in Villa Israel
• 12 measures of water scarcity -- including instrumental participatory collection
of quantitative data
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Instrumental Participatory Collection of Quantitative Water Data
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VulnerabilityElimination of water tasks
ResilienceWater conservation
RobustnessAdequate water (pppd)
Household
ASSETS
Tap stand system
Results
Water exchangesystem
EconomicWell-being
ACCESS
Water deliverytrucks
r2=.18p=.02
r2=.11p=.12
r2=.09p=.23
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VulnerabilityElimination of water tasks
Household
ASSETS
Tap stand system
Results
Water exchangesystem
EconomicWell-being
ACCESS
Water deliverytrucks
r2 = .18p-value = .02
B=.11p=.79
B=-.39 p=.08
B=2.80p=.06
B=-.43p=.05
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From Knowledge to Action in Villa Israel
• Tap stand system
• Economic well-being
• Access to water delivery trucks
• Participation in water exchanges
**Local Collaborations, Scholars, & Values