Network Approaches to Managing Complex Urban River Systems

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Network Approachesto Managing ComplexUrban
River Systems
Research Team CSIRO Sustainable Ecosystems
CSIRO Land and Water Complex Systems
Science University of Melbourne
In collaboration with Swan River Trust
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Regional Setting

• Swan region covers 7000 km2
• In addition to the Swan and Canning, 6 additional
  sub-catchments and estuaries ?75 nutrients
• Dominant surface feature is the Swan Canning
  Estuary (55 km2)
• Avon River Basin (121,000 km2) ? 75 salt load
  25 nutrients into Swan/Canning

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Socio-cultural landscape

• 1.25 million people (70 state population)
  growing at 1.2 pa
• Indigenous presence for over 40,000 years
• high demands on land water resources for
• Industry
• Commerce
• Residential
• Transport
• Lifestyle needs
• Estuarine system has important environmental
  values
• Significant economic and recreational asset

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NRM Goals for the region

• Conserve natural diversity
• Ensure acceptable water quantity and quality
• Improve land condition
• Improve management processes
• Legislation
• statutory processes
• programs and strategies
• to be integrated to improve natural resource
  management
• Achieve cultural change
• Government
• industry and
• Commerce
• Community
• individual behaviours
• For better understanding and management of the
  Regions natural resources

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Strategic initiatives

• Swan and Canning River Precinct Planning Project
• Swan Canning Environmental Protection Plan
  (SCEPP)
• Riverplan a comprehensive management plan and
  implementation strategy for SCEPP

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Swan River System

• Institutional setting
• complex governance arrangements
• jurisdictional overlap in responsibilities
• interactive processes that are unclear or
  difficult to resolve
• Multiple stakeholders
• Large number of players / nodes
• Emerging features

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Central questions

• Can network theory and associated social analysis
  be used to solve real world, complex NRM problems
• Can knowledge about the functionality of the Swan
  River network be used in planning and for the
  implementation of the Swan-Canning EPP by Swan
  River Trust

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The Riverplan network what does it show?

• High interconnectivity of system
• Complexity
• Identification of both highly connected and
  peripheral agency roles in Riverplan
• A very complicated system!

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The Riverplan network

• Due to high level of complexity
• Focus on a specific Swan River management issue
  development and river amenity
• Conversion of Riverplan network into formal
  models and preliminary analysis
• Semi-structured interview questions developed and
  tested - to provide network information for this
  issue set
• Data collection from core Riverplan agencies

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Development and River Amenity
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Prisoners Dilemma

• Tension between interest groups along the Swan
  River

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The Executive Inter-Organization Network
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Organisational links of any responsibility
Redrespondent Yellownon-respondent
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Organisational links of any responsibility
Redrespondent Yellownon-respondent
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All Crucial Ties
Redrespondent Yellownon-respondent
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Crucial Ties Implementing Policy
Redrespondent Yellownon-respondent
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Crucial Ties Legislative Initiatives
Redrespondent Yellownon-respondent
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Crucial Ties Developing Policy
Redrespondent Yellownon-respondent
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Very Important but Difficult Ties
Redrespondent Yellownon-respondent
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Very Important but Difficult Ties Implementing
Policy
Redrespondent Yellownon-respondent
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Very Important but Difficult Ties Legislative
Initiatives
Redrespondent Yellownon-respondent
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Very Important but Difficult Ties Developing
Policy
Redrespondent Yellownon-respondent
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Lattice Models.

• 155 multiplex ties, each involving up to 14 areas
  of responsibility
• Lattice representation of array for 155 ties ? 14
  areas
• In the lattice
• Node size indicates no. of edges with fitted
  profile
• A node corresponding to one or more multiplex
  ties is at or above all of the areas in its
  (fitted) profile
• An area is at or below all multiplex ties which
  include it in their (fitted) profiles
• One area is below another if responsibility for
  the first entails responsibility for the second
  in the set of fitted profiles

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Hierarchical View of the Responsibilities
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Next Steps
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Key Player Analysis
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Dominance Hierarchies
David Score
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Questions