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

Past Methods (No longer in use)

  • Sampling site establishment for tree cores
    Started: 2013-05-15
    Ended: 2013-08-31

    At each site (i.e., elevation) a sampling transect with 15 points each separated by 15 meters was established parallel to the elevation contour. At each point the point-centered-quarter method was used for sapling (2.54 – 10.15cm DBH) and mature (>10.15cm DBH) living and dead individuals.

  • Tree coring
    Started: 2013-05-15
    Ended: 2013-08-31

    Tree cores were also collected from red spruce and balsam fir trees. Cores taken from sites representing the low, middle, and high elevation range for each species on the mountain. At each site up to 5 trees were cored of each species (max of 15 trees per species per mountain). Cores were only taken from trees >20cm DBH when possible and only from healthy, dominant or codominant trees. Cores were collected parallel to the elevation contour.

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
speciesTree Species Codes

4 digit tree species code (first two letters of genus and first two of species)

Measurement type: Nominal
Global climate change fingerprints montane forests of NE US Mt Mansfield Cores
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Appears in data asMeaning
PIRUred spruce (Picea rubens) - View ITIS Record
ABBAbalsam fir (Abies balsamea) - View ITIS Record
mountainName of Mountain

Name of mountain where samples were collected

Measurement type: Nominal
site_uniqueSite ID

Combination of elevation and mountain first letters to make unique site identifying id. For example: Abraham 800m = “Ab08” and 1100 meters = “Ab11”

Measurement type: Nominal
yearYear

Year

Measurement type: DateTime
Date/Time Format: YYYY
BAIBasal Area Increment

Basal area increment

Measurement type: Interval
Unit: unavailable
Precision: 0.0000001
sample.depthNumberTrees in Average

Number of unique trees that went into yearly average

Measurement type: Interval
Unit: unavailable
Precision: 10

Sampling Equipment

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

Past Sampling Equipment (No longer in use)

  • Increment corer
    Started: 2013-05-15
    Ended: 2013-09-01

    increment corer

Site Characteristics

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

  • Site Description

    Plots every 100 m from 800 m to 1100 m on Mt Mansfield

    Minimum Altitude: 800 meter

    Maximum Altitude: 1100 meter