Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

  • Random plot location
    Started: 2011-08-31

    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

    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

    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

    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

    Land use proportions and ground cover proportions on the plot are recorded.

  • Process data
    Started: 2011-08-31

    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.

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
CommentsComments

Comments

Measurement type: Nominal
LocationNameLocationName

LocationName

Measurement type: Nominal
NextAvailableTreeIDNextAvailableTreeID

NextAvailableTreeID

Measurement type: Nominal
OffsetPointOffsetPoint

OffsetPoint

Measurement type: Nominal
PercentMeasuredPercentMeasured

PercentMeasured

Measurement type: Ratio
Units:
PercentPlantablePercentPlantable

PercentPlantable

Measurement type: Ratio
Units:
PercentShrubCoverPercentShrubCover

PercentShrubCover

Measurement type: Ratio
Units:
PercentTreeCoverPercentTreeCover

PercentTreeCover

Measurement type: Ratio
Units:
PhotoPhoto

Photo

Measurement type: Nominal
PlotIDPlotID

PlotID

Measurement type: Nominal
SeriesSeries

Series

Measurement type: Nominal
StakeStake

Stake

Measurement type: Nominal
SubplotIDSubplotID

SubplotID

Measurement type: Nominal
SubplotSizeSubplotSize

SubplotSize

Measurement type: Ratio
Units:
YearYear

Year

Measurement type: DateTime
Date/Time Format: YYYY

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

  • Clinometer
    Started: 2011-08-31

    Suunto clinometer

  • Compass
    Started: 2011-08-31

    Compass

  • Diameter tape
    Started: 2011-08-31

    Diameter tape

  • GPS unit
    Started: 2011-08-31

    Garmin Rino 530HCx GPS unit

  • Plot establishment
    Started: 2011-08-31

    200 randomly-located 0.1 acre plots were established within Burlington

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    200 randomly selected permanent plots throughout Burlington, VT

    Minimum Altitude: 100 feet

    Maximum Altitude: 437 feet