Fig 1.
“Step 1: Choose a region for planting trees”.
The first page of the interactive decision-support tool recommends identifying a region (census tract) within Boston for planting trees. This page displays maps of mid-morning land surface temperature (LST) as well as Heat Vulnerability Index (HVI), and clicking on the map displays the neighborhood name. Below these maps, an expandable section addresses the potential for canopy expansion for each census tract, and provides a list of resources for alternatives to tree-planting that may also counter urban heat. Map tiles were republished under a CC BY license, with permission from CARTO, original copyright 2020. Data courtesy of OpenStreetMap (openstreetmap.org; OpenStreetMap contributors).
Fig 2.
“Step 2: Learn about regional considerations”.
The second page of the tool displays a map of Boston with additional information that may influence decision-making within a census-tract, such as pest sightings, property ownership, and names of community organizations that may assist with planting or maintenance. Map tiles were republished under a CC BY license, with permission from CARTO, original copyright 2020. Data courtesy of OpenStreetMap (openstreetmap.org; OpenStreetMap contributors).
Fig 3.
“Step 3: Choose the right tree species”.
The third page of the tool allows for the user to use preferences and hyper-local site characteristics to filter a list of tree species approved by the City of Boston. Choices can be selected on the left and the trees that meet all specifications appear to the right. Each listing includes a small image, basic size and growth information, a link to a full fact sheet, and an icon that indicates if a tree has particularly high potential for heat-reduction (based on transpiration rates and leaf area).
Fig 4.
“Step 4: Keep your tree healthy”.
The fourth page of the tool provides users with resources that can be consulted for maintenance of the tree they have selected using steps 1 through 3. This includes links for contacting Boston’s tree maintenance teams, up-to-date information about pests, and tips for maintenance from the Boston.gov website.