13C discrimination during CO2 assimilation by the terrestrial biosphere

  title={13C discrimination during CO2 assimilation by the terrestrial biosphere},
  author={Jon Lloyd and Graham D Farquhar},
Estimates of the extent of the discrimination against13CO2 during photosynthesis (ΔA) on a global basis were made using gridded data sets of temperature, precipitation, elevation, humidity and vegetation type. Stomatal responses to leaf-to-air vapour mole fraction difference (D, leaf-to-air vapour pressure difference divided by atmospheric pressure) were first determined by a literature review and by assuming that stomatal behaviour results in the optimisation of plant water use in relation to… CONTINUE READING
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