Wood timber is one of the worst sources for ethanol production. At a maximum of four tons of biomass per acre, and around 520 gallons of ethanol produced, it is a relatively poor performer, compared to Miscanthus's 3,250 gallons. While this may seem like an unfair comparison, Miscanthus even outperforms other grasses, such as switchgrass, which yields around 3-6 tons of biomass and 400-900 gallons of ethanol fuel.
http://en.wikhttp://
C4 carbon fixation
C4 plants have a competitive advantage over plants possessing the more common C3 carbon fixation pathway under conditions of drought, high temperatures, and nitrogen or CO2limitation. When grown in the same environment, at 30°C, C3 grasses lose approximately 833 molecules of water per CO2 molecule that is fixed, whereas C4 grasses lose only 277 water molecules per CO2 molecule fixed. This increased water use efficiency of C4 grasses means that soil moisture is conserved, allowing them to grow for longer in arid environments.[7]
0 comments:
Publicar un comentario