• Address:
  705 Spear Street
  South Burlington, Vermont 05403
  United States of America
  
  Phone: (802) 391-4135
  Email: femc@uvm.edu
  Website: www.uvm.edu/femc

Yearly monitoring of the urban forest in Burlington, VT, using 200 permanent, randomly selected plots and the USDA Forest Service i-Tree Eco methodology. Data collected and analyzed by i-Tree Eco provide information on the relative abundance and importance of tree species, land use characteristics, net carbon sequestration, effects on energy use, carbon emissions, and other information useful for valuing and managing Burlington’s urban forest. Plots are regularly resurveyed to monitor for changes in condition and forest health.

• -73.2732693439999, 44.44596369
• -73.1809821919999, 44.44596369
• -73.1809821919999, 44.53696341
• -73.2732693439999, 44.53696341
• -73.2732693439999, 44.44596369

• Label: Location Name

• Description: Name of sample/inventory location (e.g., city name)

• Storage Type: text

• Measurment Type: nominal

• Label: Project Series

• Description: Project series name

• Storage Type: text

• Measurment Type: nominal

• Label: Year

• Description: Year of data collection

• Storage Type: datetime

• Measurment Type: datetime
• String Format: YYYY

• Label: Plot ID Number

• Description: Plot number

• Storage Type: int

• Measurment Type: nominal

• Label: Subplot Number

• Description: Subplot number

• Storage Type: int

• Measurment Type: nominal

• Label: Tree Number

• Description: Tree identification number

• Storage Type: int

• Measurment Type: nominal

• Label: Field land use

• Description: Field land use

• Storage Type: int

• Measurment Type: nominal

• Custom List: i-Tree Land Use Codes
• Code: A
• Definition: Agricultural
• Code: C
• Definition: Commercial/Industrial
• Code: E
• Definition: Cemetary
• Code: G
• Definition: Golf Course
• Code: I
• Definition: Insitutional
• Code: M
• Definition: Multi-family Residential
• Code: O
• Definition: Other
• Code: P
• Definition: Park
• Code: R
• Definition: Residential
• Code: T
• Definition: Transportation
• Code: U
• Definition: Utility
• Code: V
• Definition: Vacant
• Code: W
• Definition: Water/wetland

• Label: Direction to Tree

• Description: Direction from plot center (or offset point) to tree

• Storage Type: int

• Measurment Type: interval
• Standard Unit: degree
• Precision: 1
• Unit: degree
• Number Type: integer
• Bounds:
• Minimum: 0
• Maximum: 360

• Label: Distance to Tree

• Description: Distance from plot center (or offset point) to tree

• Storage Type: decimal

• Measurment Type: ratio
• Standard Unit: meter
• Precision: 0.0001
• Unit: meter
• Number Type: real

• Label: Tree Status

• Description: Tree status

• Storage Type: text

• Measurment Type: nominal

• Custom List: i-Tree Tree Status Codes
• Code: P
• Definition: Planted—the tree was planted intentionally
• Code: I
• Definition: Ingrowth—the tree self-seeded
• Code: U
• Definition: Unknown—planted vs. ingrowth can not be determined
• Code: N
• Definition: No change in status—this tree was present in a previous inventory and is present today
• Code: H
• Definition: Removed for hazard/health problem—the tree has been removed since the previous inventory for health or safety reasons
• Code: C
• Definition: Removed but healthy—a healthy tree was removed by the property owner
• Code: L
• Definition: Removed owing to land use change—the tree was removed due to land use change (e.g., development of site)
• Code: R
• Definition: Removed, unknown—tree removed for unknown reason

• Label: Tree Species

• Description: Tree species

• Storage Type: text

• Measurment Type: nominal

• Label: Height to Base of Crown

• Description: Height to base of crown

• Storage Type: decimal

• Measurment Type: ratio
• Standard Unit: meter
• Precision: 0.0001
• Unit: meter
• Number Type: real

• Label: Tree Height ot top of live crown

• Description: Tree height to top of live crown

• Storage Type: decimal

• Measurment Type: ratio
• Standard Unit: meter
• Precision: 0.0001
• Unit: meter
• Number Type: real

• Label: Total tree height

• Description: Tree height to top of tree

• Storage Type: decimal

• Measurment Type: ratio
• Standard Unit: meter
• Precision: 0.0001
• Unit: meter
• Number Type: real

• Label: Crown Width North-South

• Description: North-south crown width, or widest point if using FIA protocol

• Storage Type: decimal

• Measurment Type: ratio
• Standard Unit: meter
• Precision: 0.0001
• Unit: meter
• Number Type: real

• Label: Crown Width East-West

• Description: East-west crown width, or at 90 degrees to other width measurement if using FIA protocol

• Storage Type: decimal

• Measurment Type: ratio
• Standard Unit: meter
• Precision: 0.0001
• Unit: meter
• Number Type: real

• Label: Crown Light Exposure

• Description: Ranking of amount of light exposure the crown receives

• Storage Type: int

• Measurment Type: ordinal

• Custom List: i-Tree Crown Light Exposure Codes
• Code: -1
• Definition: Dead trees
• Code: 0
• Definition: This tree receives no full light because it is shaded by trees, vines or other vegetation.
• Code: 1
• Definition: This tree receives light from the top or 1 side.
• Code: 2
• Definition: This tree receives light from the top and 1 side (or 2 sides without the top).
• Code: 3
• Definition: The tree receives full light from the top and 2 sides (or 3 sides without the top).
• Code: 4
• Definition: The tree receives full light from the top and 3 sides.
• Code: 5
• Definition: The tree receives full light from the top and 4 sides.
• Code: 5
• Definition: The tree receives full light from the top and 4 sides.

• Label: Percent of Crown Missing

• Description: Percent of crown missing

• Storage Type: int

• Measurment Type: ratio
• Standard Unit: percent
• Precision: 1
• Unit: percent
• Number Type: integer
• Bounds:
• Minimum: 0
• Maximum: 100

• Label: Percent Dieback

• Description: Percent of crown showing dieback

• Storage Type: int

• Measurment Type: ratio
• Standard Unit: percent
• Precision: 1
• Unit: percent
• Number Type: integer
• Bounds:
• Minimum: 0
• Maximum: 100

• Label: Percent Impevious Below

• Description: Percent of impervious surface below crown

• Storage Type: int

• Measurment Type: ratio
• Standard Unit: percent
• Precision: 1
• Unit: percent
• Number Type: integer
• Bounds:
• Minimum: 0
• Maximum: 100

• Label: Percent shrub below

• Description: Percent shrub cover below crown

• Storage Type: int

• Measurment Type: ratio
• Standard Unit: percent
• Precision: 1
• Unit: percent
• Number Type: integer
• Bounds:
• Minimum: 0
• Maximum: 100

• Label: Tree Location

• Description: Location of the tree (e.g., street, front yard, back yard)

• Storage Type: text

• Measurment Type: nominal

• Custom List: i-Tree Tree Site Codes
• Code: S
• Definition: Street tree
• Code: N
• Definition: Not a street tree

• Label: Comments

• Description: Comments on tree

• Storage Type: text

• Measurment Type: nominal

• Random plot location
  • Started: 2011-08-31
    
  • Method Description: 200 randomly-located 0.1 acre plots were established within Burlington
  Software: ArcGIS 10.0, i-Tree Eco

• Identify service learning plots
  • Started: 2011-08-31
    
  • Method Description: A subset of plots are measured by students in UVM's Natural History and Field Ecology course as a service learning project

• Setting reference objects
  • Started: 2011-08-31
    
  • Method Description: The plot center is rigorously identified using physical reference objects to allow surveyors to revisit these plots in the future and track changes over time.

• Identify and measure trees
  • Started: 2011-08-31
    
  • Method Description: Each tree in the plot is identified at least to genus and measured for height, diameter, crown height and width, percents dieback and missing, crown light exposure, and spatial relationship to nearby buildings.

• Assess land use and ground cover
  • Started: 2011-08-31
    
  • Method Description: Land use proportions and ground cover proportions on the plot are recorded.

• Process data
  • Started: 2011-08-31
    
  • Method Description: Data are submitted to the US Forest Service i-Tree Eco analysis service to generate city-wide estimates of the composition, condition and ecosystem services of the urban canopy in the city.

• Clinometer
• Started: 2011-08-31
  
• Sampling Description: Suunto clinometer

• Compass
• Started: 2011-08-31
  
• Sampling Description: Compass

• Diameter tape
• Started: 2011-08-31
  
• Sampling Description: Diameter tape

• GPS unit
• Started: 2011-08-31
  
• Sampling Description: Garmin Rino 530HCx GPS unit

• Plot establishment
• Started: 2011-08-31
  
• Sampling Description: 200 randomly-located 0.1 acre plots were established within Burlington