Forest Ecosystem Monitoring Cooperative

Effects of Elevation on the Productivity of White Birch: Birch Productivity Data

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Metadata Provider

  • Forest Ecosystem Monitoring Cooperative

    • 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

Abstract

    Demonstrate the effects of elevation on the productivity of Betula papyrifera growing on Mount Mansfield.

People

  • Jim Hoffman: Content Provider

  • Zachary Landis: Principal Investigator

  • Sonya Lee: Content Provider

Keywords

  • diameter at breast height, elevation, tree age, tree growth, white birch,

Organizations

  • University of Vermont : lead

Geographic Coverage

  • Coordinates
    • -72.83423333, 44.52083333
    • -72.8247, 44.52083333
    • -72.8247, 44.52175
    • -72.83423333, 44.52175
    • -72.83423333, 44.52083333

Data Table

  • Title: Birch Productivity Data
  • Start Date: 1996-10-01
  • End Date: 1996-12-01
  • Description: Measurement of white birch tree height, diameter, and age at 4 elevation sites

  • Purpose: To demonstrate the effects of elevation on the productivity of Betula papyrifera growing on Mount Mansfield.

  • Condensed Title: Z0098_birchproddata

  • Object Name: VMC.98.154

  • Data Type: mySQL
  • Citation: Zachary Landis. 1996. Birch Productivity Data. University of Vermont. FEMC. Can be found at: https://www.uvm.edu/femc/data/archive/project/effects-elevation-productivity-white-birch/dataset/birch-productivity-data

  • Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/effects-elevation-productivity-white-birch/dataset/birch-productivity-data

Attribute List

    Attribute Name: idnum
    • Label: Record ID
    • Description: Unique ID for the record
    • Storage Type: int
    • Measurment Type: ordinal
    Attribute Name: elevation
    • Label: Elevation
    • Description: Elevation of survey
    • Storage Type: int
    • Measurment Type: ordinal
    • Custom List: Elevation Code
      • Code: 1
        • Definition: 730
      • Code: 2
        • Definition: 820
      • Code: 3
        • Definition: 910
      • Code: 4
        • Definition: 1000
    Attribute Name: dbh
    • Label: Tree Diameter
    • Description: Diameter at breast height of the tree
    • Storage Type: decimal
    • Measurment Type: ratio
    • Standard Unit: centimeter
    • Precision: 0.01
    • Unit: centimeter
    • Number Type: real
    Attribute Name: age
    • Label: Tree Age
    • Description: Tree age
    • Storage Type: int
    • Measurment Type: ratio
    • Standard Unit: nominalYear
    • Precision: 1
    • Unit: nominalYear
    • Number Type: integer
    Attribute Name: dbhclass
    • Label: Diameter Class
    • Description: Diameter class of the tree
    • Storage Type: int
    • Measurment Type: nominal
    • Custom List: DBH class
      • Code: 1
        • Definition: <10.16 cm
      • Code: 2
        • Definition: 10.16cm
      • Code: 3
        • Definition: 15.25cm
      • Code: 4
        • Definition: 20.32cm
      • Code: 5
        • Definition: >25.40cm
    Attribute Name: dbh_age
    • Label: Diameter/Age Ratio
    • Description: Ratio of the diameter at breast height to age
    • Storage Type: decimal
    • Measurment Type: ratio
    • Standard Unit: number
    • Precision: 0.0000001
    • Unit: number
    • Number Type: real

Methods

  • Past Methods (no longer in use)
    • Selecting sample trees
      • Started: 1996-10-01
        Ended: 1996-12-01
      • Method Description: Belt transects 3 meters wide and 150 meters long were used to select sample trees. All white birch trees along the transects established at 4 elevations were sampled. The compass bearing used at each elevation was: 730 m=N80E, 820 m=N80E, 910 m=N72E, and 1000 m=N74E. A random number generator was used to select two trees per DBH class to be cored at each elevation. DBH classes used were: <10.16 cm; 10.16-15.23 cm; 15.24-20.31 cm; 20.32-25.39 cm; and >25.4 cm. DBH was measured to the nearest ten

Sampling Equipment

  • No sampling equipment recorded for this dataset

Site Characteristics

  • Site Description: Browns River headwaters on Mount Mansfield. Four elevations were used off the Teardrop Trail: 730, 820, 910 and 1000 meters.