Tree Health
Tree Health is a measure of the overall health of DC’s tree canopy.
How did we come up with the grade?
The Urban Forest Effects Model (UFORE) is an analysis tool developed by the US Forest Service Northern Research Station. UFORE analyses have been done in many cities in North America, including the District (2004). UFORE uses a ground-based statistical sample to say things about trees throughout a geographic area.
The DC UFORE Study was conducted by Casey Trees Staff and Citizen Foresters and the National Park Service.
We compared the results of the DC UFORE study with the results of UFORE studies in cities east of the Mississippi and on the west coast (these are places where high tree cover is natural; we purposely did not compare DC with cities in the Great Plains or the desert southwest as those areas do not naturally have high tree cover). These data were developed by the US Forest Service Northern Research Station.
The condition of DC’s trees is better than the average of the noted cities and is also as good or better than the individual cities.
Explore other Tree Report Card Metrics: Coverage, Health, Planting, Protection, and Awareness
