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EMERGY and Urban Ecosystems

EMERGY and Urban Ecosystems

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EMERGY and Urban Ecosystems

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  1. EMERGY and Urban Ecosystems Mark T. Brown Department of Environmental Engineering Sciences University of Florida 24 April, 2003

  2. Emergy and Urban Systems

  3. System Diagram of a city and its support region

  4. Emergy Indices...

  5. Environmental Support... Rural areas provide required renewable support Fossil Fuel reserves increase city size and demands on environmental systems

  6. Hierarchy of Cities in the Florida Landscape

  7. FIVE CLASSES OF CITIES… • Class 1 - Central Place (art, information) • Class 2 - Industrial Place (commodity production) • Class 3 - Trans-shipment Place (distribution) • Class 4 - Market Place (commodity exchange) • Class 5 - Rural Settlement (renewable production)

  8. Class 1… Jacksonville

  9. Class 2… Orlando

  10. Class 3… Gainesville Class 4… Palatka Class 5… Hawthorne

  11. Characteristics of Urban Systems...

  12. Characteristics of Land Uses

  13. Ultimately, LDI can be taken directly from Satellite Imagery. Preliminary analysis has shown that the spatial variance of pixels is strongly correlated to LDI. Satellite Image of South Florida Miami Homestead Biscayne Bay