Stomatal numbers are sensitive to increases in CO2 from pre-industrial levels

  title={Stomatal numbers are sensitive to increases in CO2 from pre-industrial levels},
  author={F. Ian Woodward},
Recent measurements of atmospheric CO2 levels in ice cores1 have shown that global CO2 has increased by about 60 µmol mol−1 over the past 200 years. Evidence for the response of plants in the field to this change in CO2 levels is here presented in the form of a significant change in stomatal density—an anatomical response of considerable ecophysiological importance. A 40% decrease in density of stomata was observed in herbarium specimens of leaves of eight temperate arboreal species collected… CONTINUE READING
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