Forest Ecosystem Monitoring Cooperative

Determining the Current State of Knowledge of Fall Foliage Color Development: Fall Foliage

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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

    Identify physiological factors associated with the onset and development of fall coloration in sugar maple.

People

  • John Donnelly: Content Provider

  • Abby van den Berg: Principal Investigator

Keywords

  • chemistry, fall color, foliage, sugar maple,

Organizations

  • University of Vermont Proctor Maple Research Center: lead
  • University of Vermont Rubenstein School of Environment and Natural Resources: partner

Geographic Coverage

  • Coordinates
    • -72.9119, 44.50206667
    • -72.86726667, 44.50206667
    • -72.86726667, 44.61191667
    • -72.9119, 44.61191667
    • -72.9119, 44.50206667

Data Table

  • Title: Fall Foliage
  • Start Date: 2008-01-01
  • End Date: 2008-03-31
  • Description: Weekly foliage samples from trees selected from the tree phenology plots are analyzed for foliar moisture, nitrogen, nutrients, and carbohydrate content.

  • Purpose: Identify physiological factors associated with the onset and development of fall coloration in sugar maple.

  • Condensed Title: Z0085_FallFoliage

  • Object Name: VMC.85.203

  • Data Type: mySQL
  • Citation: Abby van den Berg. Fall Foliage. FEMC. https://www.uvm.edu/femc/data/archive/project/determining-current-state-knowledge-fall-foliage/dataset/fall-foliage

  • Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/determining-current-state-knowledge-fall-foliage/dataset/fall-foliage

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Methods

  • Current Methods
    • Sample collection
      • Method Description: Each tree was between 50 and 90 feet tall. Three leaves were collected from a single branch selected from each cardinal direction in the lower crown of the tree. Branch samples were obtained using a shotgon loaded with steel shot.

    • Moisture analysis
      • Method Description: One leaf was retained for moisture analysis. Tissue was removed with a hole-punch from the remaining two leaves of the sample to be used for carbohydrate analysis. The remaining tissue from these two leaves was used for all subsquent chemical and color analysis.


  • Past Methods (no longer in use)
    • Foliage samples
      • Started: 1998-08-01
        Ended: 1998-12-31
      • Method Description: Five mature sugar maple trees are sampled weekly from within the forest (these are the same trees used in the tree phenology monitoring project conducted by Vermont Forestry Division) and five trees on forest edge. Weekly foliage samples are analyzed for foliar moisture, nitrogen, nutrients, and carbohydrate content.

Sampling Equipment

  • Current Equipment
    • Shotgun
      • Sampling Description: Shotgun loaded with steel shot to obtain branch samples.

Site Characteristics

  • Site Description: Mature sugar maple stand at the Proctor Maple Research Center.