To separate the sources of respired CO2, a series of chambers are often installed and
CO2 effluxes monitored at frequent intervals from soil, stem, branches, and leaves. Alternatively,
respiration sources can be identified by monitoring the isotopic composition of
carbon (d13C) and oxygen (d18O) in CO2 diffusing into the turbulent transfer steam. The
scientifi c value of full system analyses with eddy correlation techniques has proved
immense, particularly when conducted over a series of years (Goulden et al., 1996). Eddyflux installations therefore serve for testing the underlying assumptions and accuracy of
stand-level ecosystem models.
To separate the sources of respired CO2, a series of chambers are often installed andCO2 effluxes monitored at frequent intervals from soil, stem, branches, and leaves. Alternatively,respiration sources can be identified by monitoring the isotopic composition ofcarbon (d13C) and oxygen (d18O) in CO2 diffusing into the turbulent transfer steam. Thescientifi c value of full system analyses with eddy correlation techniques has provedimmense, particularly when conducted over a series of years (Goulden et al., 1996). Eddyflux installations therefore serve for testing the underlying assumptions and accuracy ofstand-level ecosystem models.
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