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Data used in Calculating Emergy Indices

Unless otherwise noted all data in these Tables comes from Montague, C.L., Caldwell, J.W., and Knight, R.L. 1981. Record of Metabolism of Estuarine Ecosystems at Crystal, River, Florida, Final Annual Report to the Florida Power Corp. Contract #QEA-000045. Systems Ecology and Energy Analysis Group, Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL.

Data for Figure 7(a) Cost of maintaining structure

Note in these ratios the units will cancel so the maintenance ratio for emergy is the same as that for live biomass.
    Control Marsh       Thermal Marsh        
year Season Live Biomass Night Respiration   Maintenance Live Biomass Night Respiration X2 for day. Maintenance Maintenance Ratio
    g dry wt. m-2 gC m-2 d-1   % of live biomass g dry wt. m-2 gC m-2 d-1 X2 to dry wt % of live biomass Thermal/Control
1973 winter 135 na #VALUE! #VALUE! 150 na #VALUE! #VALUE! #VALUE!
  spring 225 1.8 7.2 3.2 225 1.78 7.12 3.164444444 0.988888889
  summer 530 1.22 4.88 0.920754717 420 1.22 4.88 1.161904762 1.261904762
  fall 460 na #VALUE! #VALUE! 560 na #VALUE! #VALUE! #VALUE!
1977 winter na na #VALUE! #VALUE! na na #VALUE! #VALUE! #VALUE!
  spring 388 1.42 5.68 1.463917526 395 0.72 2.88 0.729113924 0.498056695
  summer 510 1.69 6.76 1.325490196 609 1.2 4.8 0.78817734 0.594630833
  fall 786 1.38 5.52 0.702290076 564 1.14 4.56 0.808510638 1.151248844
1978 winter 250 0.18 0.72 0.288 322 0.56 2.24 0.695652174 2.415458937
  spring 224 2.04 8.16 3.642857143 312 2.73 10.92 3.5 0.960784314
  summer 453 2.9 11.6 2.560706402 424 2.39 9.56 2.254716981 0.880505856
  fall 1140 1.19 4.76 0.41754386 695 1.09 4.36 0.627338129 1.502448461
1979 winter 413 1.07 4.28 1.036319613 329 0.49 1.96 0.595744681 0.574865778
  spring 184 0.65 2.6 1.413043478 272 1.57 6.28 2.308823529 1.633936652
  summer 374 1.03 4.12 1.101604278 472 1.62 6.48 1.372881356 1.246256377
  fall 626 1.34 5.36 0.856230032 720 1.23 4.92 0.683333333 0.798072139
1980 winter 476 1.33 5.32 1.117647059 485 1.32 5.28 1.088659794 0.974064026
  spring 400 1.52 6.08 1.52 412 2.31 9.24 2.242718447 1.475472662
  summer 868 1.49 5.96 0.686635945 754 2.09 8.36 1.108753316 1.61476154
  fall 1060 1.59 6.36 0.6 970 1.77 7.08 0.729896907 1.216494845

Data for Figure 7 (b) P/R ratios

year Community Gross Production gO m-2 d-1         P/R System Metabolism gO m-2 d-1          
  A B OB Seasonal Total Annual Energy for Area*         Seasonal Total Annual Total Annual Energy for Area*
Thermal         joules y-1           g O2 m-2 y-1 joules y-1
1980w 1.11 1.72 2.52 162.72917   1.477900552 0.4 0.67 0.74 55.05416667 499.1375 1.06E+14
1980sp 2.32 3.17 3.14 262.49583   1.67248062 0.84 1.18 0.56 78.475    
1980s 1.64 6.42 5.37 408.49583   1.20556553 0.83 2.81 1.93 169.4208333    
1980f 0.7 6.33 8.07 459.29167   1.170542636 0.19 2.99 3.27 196.1875    
        1293.0125 1.36907E+14 1.295246801            
Control E D C                  
1980w 2.17 2.29 1.96 195.275   1.167272727 1.03 0.97 0.75 83.64583333 653.0458333 1.38E+14
1980sp 4.8 1.98 2.19 272.8375   1.155927835 2.06 0.87 0.95 118.0166667    
1980s 7.67 3.94 4.25 482.40833   1.051724138 3.64 1.84 2.06 229.3416667    
1980f 6.04 4.63 5.1 479.67083   1.080136986 2.57 2.32 2.41 222.0416667    
        1430.1917 1.51432E+14 1.095016302            
                         
*GPP /2 to get C/ .2 to get dry wt. X 4.5 to get Kcal X 4183 to get joules X area m-2
*night resp X2 for the day /2 to get C/ .2 to get dry wt. X 4.5 to get Kcal X 4183 to get joules X area m-2

Emergy Signature for Crystal River data from Kemp (1977)

Emergy Signature for Crystal River data from Kemp (1977)*. System transformities for production and consumption.
  Kcal joules sej/J Emergy sej  
  2.25 km-2 y-1        
Waves 2.18E+09 9.12E+12 30550 2.79E+17 2.78584E+17
Tide 1.90E+09 7.95E+12 24259 1.93E+17 1.92803E+17
Waste heat 1.12E+11 4.68E+14 1.7 7.96E+14  
for a 5 degree increase          
Water flow 3.90E+07 1.63E+11 27764 4.53E+15  
           
      Emergy basis m-2 y-1 4.77E+17 4.71387E+17
           
      sej/Joule   Ratio Thermal/Control
  Thermal System Transformity for Production   3.48E+03   1.11E+00
  Control System Transformity for Production   3.15E+03    
           
  Thermal System Transformity for consumption   4.51E+03   1.31E+00
  Control System Transformity for consumption   3.45E+03    
           
* Kemp, W.M. 1977 Energy Analysis and Ecological Evaluation of A Coastsal Power Plant. Ph.D. Dissertation.Environmental Engineering Sciences, University of Florida, Gainesville, FL. 582 pp.

 

 

 

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