Urban
Forest Mapping
CITYgreen
application
After comparing the statistics
of the pixel-based and object-based classification approaches,
we chose object-oriented classified images as our final
images
for
three years to
input into
the CITYgreen analysis modules since the forest cover classification
maps were more consistent. The classified IKONOS images
provide the base data sets used in the urban forest economic
benefits evaluation. They were converted into the CITYgreen
format for stormwater runoff, air quality, and carbon storage
and sequestration analysis.
CITYgreen economic benefits
report for Eagan in 2000
CITYgreen economic benefits report for Eagan in 2001
CITYgreen economic benefits report for Eagan in 2002
Based on CITYgreen analysis for three years (from 2000
to 2002), trees help save approximately $811,275 on annual
air pollution, $5,420,416 on annual storm water, and store
216,410.40 tons of carbon annually in the City of Eagan.
Our results provide important
information that can be used to improve the area’s
livability for local residents in Eagan. It also provides
tools
and insights that communities
can use to make wise choices about future development based
on tree values. |
