Table 3. Synthesis of 1975 socioeconomic and natural system energy storage 

 data for Hillsborough County (Sipe et al . 1979). 



Storage Description and value 



Q 



LI Total land in natural systems of Hillsborough County = 7.781 x 10 m 



(Hillsborough County Environmental Protection Commission 1979) 



Ql Total biomass of natural systems of Hillsborough County = 1.94 x 10^ 3 



Kg = 8 X 1013 cal (Lieth and Whittaker 1975) 



Ph Total phosphate reserves currently estimated to exist in Hills- 



borough County = 2 X 108 short tons = 1.81 x lOl 1 Kg 



9 2 

 L2 Total land in fams for Hillsborough County = 1.445 x 10 m (Hills- 



borough County Environmental Protection Commission 1979) 



13 

 Q2 Embodied energy value of farm assets = 1.008 x 10 cal (Florida 



Department of Revenue 1976) 



L3 Total land area of human systems (e.g., urban, industrial, residen- 



tial) = 5.558 X 108 m2 (Hillsborough County Environmental Protection 

 Commission 1979) 



Q3 Embodied energy of total assessed value of land and buildings of 



Hillsborough County 1974 (less agricultural assets) = 1.18 x lO^^cal 

 (U.S. Department of Agriculture 1977) 



5 

 P Population of Hillsborough County in 1974 = 5.87 x 10 people 



(Bureau of Economic and Business Research 1975) 



F Energy value of Hillsborough County Fuel Stocks (1 year of storage = 



3.87 x 10l3 Cal) 



12 

 M Total primary productivity in local marine ecosystan = 4.1 x 10 



cal (Lieth and Whittaker 1975) 



Simulation of Alternative Futures for Hillsborough County 



Energetics simulations not only provide information on the future impact 

 of current trends, but also permit alternative scenarios to be simulated. In 

 the case of the Hillsborough County simulation, several alternative scenarios 

 were investigated. One assumed that fossil fuel prices would be governed by 

 an increasing "surcharge" starting in 1973, not just a single price increase. 

 The results of this simulation, shown in Figure 11, show a decrease in urban 

 assets to levels of the 1950's. (The data shown in Figure 11, with the excep- 

 tion of population, are in coal equivalent calories.) The decline in urban 

 assets reflects a changing standard of living in Hillsborough County brought 



296 



