Field monitoring of urban trees is essential to understanding how urban forests change over time. Part 3 of this 5-part animated series “Trunk Diameter” focuses on how to accurately measure the diameter at breast height (DBH) of a tree.
Watch other segments of the Urban Tree Monitoring series.
The series was produced by the U.S. Forest Service, which also offers two related publications:
Urban Tree Monitoring: A Field Guide
This report provides detailed protocols for urban tree monitoring data collection. Specifically, we discuss the core variables necessary for field-based monitoring projects, including field crew identification, field crew experience level, tree record identifier, location, site type, land use, species, mortality status, crown vigor, and trunk diameter. The intent of this Field Guide is to serve urban forest managers and researchers who collect longitudinal field data on urban trees, as well as interns and citizen scientists. DOWNLOAD THE FIELD GUIDE
Urban Tree Monitoring: A Resource Guide
This is a companion document to the Field Guide. DOWNLOAD THE RESOURCE GUIDE