FIGURES 



Number Page 



Recreation and Tourism 



1 Mean annual rainfall and temperature 161 



2 State preserves, forests, and parks 163 



3 State aquatic preserves 164 



4 State wildlife management areas 165 



Environmental Issues and Regulations 



1 Marine landings for Florida in 1970 271 



2 Population distribution in 1970 274 



3 Florida counties with identified phosphate deposits 276 



4 Changes in percentage of land in farms 277 



5 Contamination of the groundwater system by waste 



disposal practices 278 



6 Underground injection control program classification of wells . . 279 



7 Critical habitats in Florida 286 



8 Environmentally endangered lands 287 



9 State aquatic preserves 288 



10 State wildlife management areas 289 



11 State preserves, forests, and parks 290 



12 Areas of critical state concern 292 



Energetics Models of Socioeconomic Systems 



1 Energy circuit diagramming symbols 308 



2 Energy flow model of wood and coal 



as fuel sources for a foundry 310 



3 Energetics model of a farm illustrating 



the interaction of energy and money 311 



4 Coal equivalent calories per dollar of 



gross national product per year 312 



5 Basic Hillsborough County model 314 



6 Simplified subsystem model of Hillsborough 



County natural production system 316 



7 An evaluated model of the Hillsborough County natural system . . . 317 



8 Energetics model of Hillsborough County natural system 319 



9 Detailed energy model of Hillsborough County 321 



10 Simulation result of Hillsborough County model with constantly 

 increasing relative imported fuel price and a price jump 326 



11 Simulation result of Hillsborough County model with 

 constantly increasing relative fuel prices and a price 



jump and with increasing fuel surcharge beginning in 1973 .... 327 



12 Simulation result of Hillsborough County model with technical 

 innovation such as energy conservation implemented in 1983 .... 328 



13 Energy ratios 330 



14 Yield ratios of coal -fired and oil-fired electric power plants . . 331 



TV 



