Carbon dioxide enrichment experiments

CO₂ enrichment

process of increasing the amount of carbon dioxide to higher level than normal fresh air

why are these experiments undertaken

to predict future rates of photosynthesis and plant growth in response to human activity

what do high amounts of CO₂ do for plants

increase plant growth and maturation, but too much can cause plant damage

main methods of carbon enrichment

• enclosed greenhouse experiments

• free air CO₂ enrichment (FACE) experiments

enclosed greenhouse experiments

CO₂ levels are increased artificially by adding CO₂ from compressed gas tanks or fermentation buckets

FACE experiments

placement of pipes which emit CO₂ around an experimental design