1 / 13

Efficiency of Food Production Systems

Efficiency of Food Production Systems. Efficiency Calculations. Efficiency = energy output energy input . Traditional extensive rice production. Low inputs of energy and chemicals Low output of food The efficiency may be high. Traditional Rice Farming in Borneo.

alicia
Télécharger la présentation

Efficiency of Food Production Systems

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Efficiency of Food Production Systems

  2. Efficiency Calculations Efficiency = energy output energy input

  3. Traditional extensive rice production • Low inputs of energy and chemicals • Low output of food • The efficiency may be high

  4. Traditional Rice Farming in Borneo

  5. Calculate the efficiency of a traditional rice farm in Borneo

  6. Calculations Add to find the total Inputs = 1.085 Outputs = 7.318 Efficiency = output = 7.318 input 1.085 = 6.745

  7. Rice farming in California

  8. Intensive rice production • High inputs of energy, chemicals, fertilizers and fuels • Higher outputs of food • The efficiency may be low due to the high inputs

  9. Calculate the efficiency of this rice farm in California

  10. Calculations Add to find the total Inputs = 14.680 Outputs = 22.370 Efficiency = output = 22.370 input14.680 = 1.520

  11. Compare the two food production systems

  12. Outline which farming system will feed more people. Compare the farming systems to decide which is more sustainable.

More Related