How much plant biomass is needed per human?
How much plant biomass is needed per human?
In the first place, someone will (correctly) respond that the question is poorly conceived, hopelessly vague, dependent on too many unknowns, etc. Granted. Cleaning up the question will probably be the first step towards finding a meaningful answer. So let's start with these: * I'm referring to O2 and CO2 exchange only; not using plants as food, fuel, building materials, etc. * We can all recognize that humans have varying needs. One size does not fit all. * The O2 output per gram of one plant is probably wildly different than that of another species. Asked another way: Assume that one normal healthy adult human is placed in a sealed environment with everything needed, except a renewable oxygen supply, and he wants to live there indefinitely. How much plant life should be included in this environment? (Ignore the fact that the artificial environment will almost certainly degrade quickly due to other causes.) Thank you! Ted Shoemaker P.S. No, this isn't a homework assignment. I'm just trying to learn. |
How much plant biomass is needed per human?
In article . com, " wrote:
How much plant biomass is needed per human? [snip] Asked another way: Assume that one normal healthy adult human is placed in a sealed environment with everything needed, except a renewable oxygen supply, and he wants to live there indefinitely. How much plant life should be included in this environment? Perhaps it will depend on how big the "environment" is? If too small, and too much plant life, the poor bugger might die of suffocation before dawn if the door is shut at sunset! (Ignore the fact that the artificial environment will almost certainly degrade quickly due to other causes.) Cheers, Phred. -- LID |
How much plant biomass is needed per human?
As I understand it your question is how much plants are needed to absorb the
CO2 breathed into the air by a single human? I suppose you could calculate a minimum by starting with the number of molecules of CO2 breathed out each day, and do a calculation of how much plant this amount of C would translate to. The total amount of plant needs to increase by at least this much each day. If this is continued ad infinitum the amount of plant will increase ad infinitum also. No matter what you do it will be a highly hypothetical result. In every imaginable case other factors will be more important in determining the hypothetical design. PvR schreef How much plant biomass is needed per human? In the first place, someone will (correctly) respond that the question is poorly conceived, hopelessly vague, dependent on too many unknowns, etc. Granted. Cleaning up the question will probably be the first step towards finding a meaningful answer. So let's start with these: * I'm referring to O2 and CO2 exchange only; not using plants as food, fuel, building materials, etc. * We can all recognize that humans have varying needs. One size does not fit all. * The O2 output per gram of one plant is probably wildly different than that of another species. Asked another way: Assume that one normal healthy adult human is placed in a sealed environment with everything needed, except a renewable oxygen supply, and he wants to live there indefinitely. How much plant life should be included in this environment? (Ignore the fact that the artificial environment will almost certainly degrade quickly due to other causes.) Thank you! Ted Shoemaker P.S. No, this isn't a homework assignment. I'm just trying to learn. |
How much plant biomass is needed per human?
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