Global Carbon Cycle and Plants

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Global Carbon Cycle and Plants
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Narrow focus to Terrestrial Plants
List
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GCC Environment Impacts

• Carbon dioxide increases
• Temperature increases
• Precipitation increases
• Climatic extremes

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GCC Environment Impacts CO2

• Carbon dioxide increases Impact on photosynthesis

Generalization 30-40 gain.
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GCC Environment Impacts CO2

• Lets add insects and nitrogen to the mix

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GCC Environment Impacts CO2

• Techniques
• Chambers
• FACE
• Eddy covariance

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GCC Environment Impacts CO2
Individual organism Generalization 25 - 30
gain. Experimental and natural CO2 springs

• Lets add genetic diversity and competition to
  picture.
• Genetic diversity including C3 - C4
  photosynthetic pathways
• Competition

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GCC Environment Impacts Temperature

• Diurnal/seasonal
• Impacts on transpiration
• What is water use efficiency?
• Impacts on respiration
• Impacts on decomposition
• Seasonal
• Impacts on dormancy
• Cold frost hardiness
• Interaction with phenology
• Interaction with nitrogen deposition

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GCC Environment Impacts PPT

• Interaction with evapo-transpiration soil
  moisture
• Cloud
• Fog
• Form
• Snow
• Rain on snow

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GCC Summation of Effects
Wrong
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GCC Summation of Effects
Better
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Climate - Vegetation - Climate
Feedback Less snow, means warmer winters,
earlier springs. Further Changes in species
distribution Changes in biological communities