URBAN ECOSYSTEM-ATMOSPHERE EXCHANGE OF CARBON DIOXIDE

摘要

Preliminary analysis indicates that the Denver urban ecosystem may be a small source of CO_2 during the growing season. Under certain conditions, this ecosystem can actually sequester substantial CO_2 to the extent that it can become a net sink over short periods of time during the growing season. Analysis under way will improve preliminary flux estimates of CO_2 by including advection and change in storage flux components of Fc, determined from eddy covariance measurements at two heights and profile concentration data.