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EMERGY and Urban Ecosystems. Mark T. Brown Department of Environmental Engineering Sciences University of Florida. 24 April, 2003. Emergy and Urban Systems. System Diagram of a city and its support region. Emergy Indices. Environmental Support.
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EMERGY and Urban Ecosystems Mark T. Brown Department of Environmental Engineering Sciences University of Florida 24 April, 2003
Environmental Support... Rural areas provide required renewable support Fossil Fuel reserves increase city size and demands on environmental systems
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)
Class 1… Jacksonville
Class 2… Orlando
Class 3… Gainesville Class 4… Palatka Class 5… Hawthorne
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