Forest Ecosystem Monitoring Cooperative

Tree Phenology Monitoring: Fall Color and Leaf Drop: Tree Fall Color 2001-2003

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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

    Annual measurements of fall color and leaf drop to establish the timing of developmental events and trends, as a measure of forest condition (ie effects of stress events) and long-term changes (ie effects of global climate change).

People

  • Joshua Halman: Principal Investigator

  • Michael Johnson: Content Provider

  • Tom Simmons: Content Provider

  • Sandra Wilmot: Principal Investigator

  • Barbara Schultz: Content Provider

  • Sean Lawson: Content Provider

  • Dan Dillner: Content Provider

Keywords

  • elevation, fall color, plant phenology, trees,

Geographic Coverage

  • Coordinates
    • -72.865715, 44.525266
    • -72.82626, 44.525266
    • -72.82626, 44.532476
    • -72.865715, 44.532476
    • -72.865715, 44.525266

Data Table

  • Title: Tree Fall Color 2001-2003
  • Start Date: 2001-08-02
  • End Date: 2003-10-28
  • Description: Metric testing for color and leaf drop

  • Purpose: Develop an improved method for monitoring changes in percent color as leaves drop throughout the foliage season.

  • Condensed Title: Z0062_fallcolorleafdrop01_03

  • Object Name: VMC.62.54

  • Data Type: mySQL
  • Citation: Halman, J., and S. Wilmot. 2003. Tree Fall Color 2001-2003. FEMC. Can be found at: https://www.uvm.edu/femc/data/archive/project/tree-phenology-monitoring-fall-color-leaf/dataset/tree-fall-color-2001-2003

  • Online Distribution: https://www.uvm.edu/femc/data/archive/project/tree-phenology-monitoring-fall-color-leaf/dataset/tree-fall-color-2001-2003

Attribute List

    Attribute Name: Date
    • Label: Date
    • Description: Date
    • Storage Type: datetime
    • Measurment Type: datetime
    • String Format: DD/MM/YYYY
    Attribute Name: DOY
    • Label: DOY
    • Description: Day of the year
    • Storage Type: int
    • Measurment Type: nominal
    Attribute Name: Elevation
    • Label: Elevation
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: Numerical Date
    • Label: Numerical Date
    • Description: Numerical date
    • Storage Type: int
    • Measurment Type: nominal
    Attribute Name: PercentFieldLeafDrop T1
    • Label: PercentFieldLeafDrop T1
    • Description: Percent field leaf drop T1
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentFieldLeafDrop T2
    • Label: PercentFieldLeafDrop T2
    • Description: Percent field leaf drop T2
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentFieldLeafDrop T3
    • Label: PercentFieldLeafDrop T3
    • Description: Percent field leaf drop T3
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentFieldLeafDrop T4
    • Label: PercentFieldLeafDrop T4
    • Description: Percent field leaf drop T4
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentFieldLeafDrop T5
    • Label: PercentFieldLeafDrop T5
    • Description: Percent field leaf drop T5
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentFieldLeafDrop T6
    • Label: PercentFieldLeafDrop T6
    • Description: Percent field leaf drop T6
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentFieldLeafDrop TAVE
    • Label: PercentFieldLeafDrop TAVE
    • Description: Percent field leaf drop TAVE
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen T1
    • Label: PercentGreen T1
    • Description: Percent Green T1
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen T2
    • Label: PercentGreen T2
    • Description: Percent green T2
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen T3
    • Label: PercentGreen T3
    • Description: Percent Green T3
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen T4
    • Label: PercentGreen T4
    • Description: Percent Green T4
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen T5
    • Label: PercentGreen T5
    • Description: Percent Green T5
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen T6
    • Label: PercentGreen T6
    • Description: Percent Green T6
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentGreen TAVE
    • Label: PercentGreen TAVE
    • Description: Percent Green TAVE
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor T1
    • Label: PercentNewColor T1
    • Description: Percent New Color T1
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor T2
    • Label: PercentNewColor T2
    • Description: Percent New Color T2
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor T3
    • Label: PercentNewColor T3
    • Description: Percent New Color T3
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor T4
    • Label: PercentNewColor T4
    • Description: Percent New Color T4
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor T5
    • Label: PercentNewColor T5
    • Description: Percent New Color T5
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor T6
    • Label: PercentNewColor T6
    • Description: Percent New Color T6
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: PercentNewColor TAVE
    • Label: PercentNewColor TAVE
    • Description: Percent New Color TAVE
    • Storage Type: int
    • Measurment Type: interval
    Attribute Name: Spp
    • Label: Spp
    • Description: Species code (First letters of the first part of the common name and the first letter of the second part of the common name IE Sugar Maple = SM)
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: SppMod
    • Label: SppMod
    • Description: Male or Female?
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: VMC Site
    • Label: VMC Site
    • Description: VMC site
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: Year
    • Label: Year
    • Description: Year
    • Storage Type: datetime
    • Measurment Type: datetime
    • String Format: YYYY

Methods

  • Current Methods
    • Monitoring on Mount Mansfield
      • Started: 1992-07-15
      • Method Description: Sugar maple and yellow birch are monitored at 1400 and 2200 feet on Mansfield

    • Unnamed Method
      • Started: 1999-07-15
      • Method Description: Yellow birch and paper birch at 2600 feet on Mansfield were added to represent high elevation fall phenology.

    • Monitoring at Lye Brook
      • Method Description: Red maple at 1400 feet in the Lye Brook Wilderness Area was added as a southern Vermont monitoring site.

    • Unnamed Method
      • Started: 1995-07-15
      • Method Description: Red maple (male and female) and white ash are monitored at 1400 feet, only.

    • Crown metrics
      • Started: 1991-07-15
      • Method Description: Visual crown ratings are recorded on 5 trees and 5 saplings (same trees as for bud development ratings).

    • New color and leaf drop
      • Started: 1991-07-15
      • Method Description: Visual crown ratings consist of percent color other than green, transparency (%), dieback-loss of leaves (%).

    • Unnamed Method
      • Started: 1994-07-15
      • Method Description: Crown density measurement was added in 1994 as a way to better estimate leaf drop.

    • Unnamed Method
      • Started: 1991-07-15
      • Method Description: Initial crown ratings are recorded in July, then every other week until color and drop changes rapidly (end of September) when weekly measurements are made. Full leaf off density is used to calculate percent leaf drop at each visit.

    • Unnamed Method
      • Started: 2001-07-15
      • Method Description: New color and leaf drop methods added to existing methods for testing. Color based on % color visible regardless of leaf drop. Added % green. Leaf drop based on visual estimate rather than measures of density, transparency or dieback. Total of color, green and leaf drop to equal 100%.


Sampling Equipment

  • No sampling equipment recorded for this dataset

Site Characteristics

  • Site Description: Upper elevation site (2200 ft.) added in the Underhill State Park.



  • Site Description: West slope of Mount Mansfield in the Browns River watershed at low elevation site (1400 ft.) at the Proctor Maple Research Center,