Data about commercial cabbage cultivation in Kenya is provided in Table 14.10. Answer the following questions. 

1. Calculate the emergy of each flow and the renewability index, environmental loading ratio, and sustainability index. 

2. A parallel study was done for cabbage grown in Kenya by traditional methods. The renewability index was found to be 31 percent, the ELR was 2.18, and the EYR was 1.51. Compare these index values with those for commercial cabbage. Discuss the pros and cons of both farming methods in Kenya.

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Table 14.10 Data about commercial cabbage cultivation in Kenya. Item Detail Input Unit UEV Unit Cabbage cultivation 1 Solar radiation 2 Rain Wind 3 4 Geothermal heat 5 Net topsoil loss 6 Tractor 7 8 9 10 11 Fuel Tools Fertilizer Pesticide Human work Output 12 Cabbage Transport to market 13 Transport Vegetable market 14 Cabbage (waste) Iron/steel Tire, rubber Diesel Steel Wood N P K 62.80 TJ 9.75 Gg 0.14 TJ 26.78 GJ 0.69 GJ 117.45 kg 52.20 kg 144.86 kg 22.05 kg 2.45 kg 120.00 kg 52.39 kg 99.57 kg 240.00 kg 1326 h 6.25 60.00 3.00 6.25 60.00 1.00 seJ/J 84.82 ksej/g 1.43 ksej/J 6.00 ksej/J 112.00 ksej/J 3.38 Gsej/g 4.22 Gsej/g 2.83 Gsej/g 3.38 1.72 3.73 3.83 Gsej/g Gsej/g 1.08 Gsej/g Gsej/g Gsej/h 14.50 273.79 GJ 1.08 Mg 112.82 Gsej/g Gsej/g Ggkm 53.76 Msej/J Msej/g ksej g/km GJ 1.11 Msej/J Mg 115.51 Msej/g Type R R R R N F F F F F FFF LL F LL F