Baltimore LTER / AmeriFlux Tower
NGCRP Contribution to the Project
Studies on carbon dioxide concentration, CO2 and H2O
flux, and the effects of multiple air pollutants on the urban forests
are being conducted in Baltimore. Urban conditions may represent
possible future scenarios: elevated carbon dioxide, ozone, nitrogen
deposition and elevated temperatures. A 40 m Forest Service lookout
tower near Baltimore is used to conduct air quality and meteorological
flux research. This is the first permanent tower to estimate carbon
flux and carbon sequestration in an urban/suburban forest ecosystem.
A CO2 and H2O profile system and eddy flux
system was installed in the winter/spring of 2001 and has been running
continuously. The initial results of our profile system shows an
elevated daily CO2 cycle associated with energy use and
rush hour traffic. The weekly CO2 cycle appears to have
higher overall CO2 emissions for the weekdays (work week)
than that of the weekend.
Estimates of suburban forest area are considered "non-forest"
by definition, and the amount of carbon stored is not well known,
as they fall between the inventories of rural and urban forests.
Metropolitan areas have an average tree cover of 33.4%, (urban counties)
and support 25% of the USA's total tree canopy cover. This study
will improve our understanding for carbon flux and carbon sequestration
in areas traditionally classified as non-forest lands.
Quick Time movies of the FLUX
Tower (bes_010003 & bes_010004)).
CO2 and Heat Flux Observations in Suburban Baltimore
(Cub Hill) (.pdf)
Studies in Carbon & Meteorological Flux & Air Quality Concentration
Measurements in the Baltimore Ecosystem Study (.pdf)
Year Results Show Tree's Effects On Baltimore Air Quality.
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