| Background/Questions/Methods:
Arctic vegetation represents a significant portion of the world’s
global carbon stocks and is particularly sensitive to global climate
change. Net plant carbon exchange depends on both photosynthesis and
respiration, the latter of which is poorly understood in arctic
ecosystems and yet is highly sensitive to global environmental change.
 Mitochondrial respiration can confound measurements of photosynthesis
and thus is often isolated by measuring it in the dark. We also know,
however, that respiration can be inhibited by light, which complicates
extrapolations from... |
