Coupling of carbon and water interactions in forest stands.

  title={Coupling of carbon and water interactions in forest stands.},
  author={P. J. Jarvis},
  journal={Tree physiology},
  volume={2 1_2_3},
Some measured values of the ratio transpiration rate/assimilation rate (E/A) for a Sitka spruce stand in Scotland and an oak-hickory stand are presented and compared with E/A for some agricultural crops. Typical midday values of E/A (on a molar basis) range from 100 to 900. Analysis suggests that this variation can be explained by differences in climate, canopy conductance and degree of coupling of the vegetation to the atmosphere. During the day, E/A varied considerably in the tree stands at… CONTINUE READING

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