• 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

To better understand the relationship between plants and their abiotic environment, by using the response of three different tree species growing at different elevations, to light.

• dataset_eml_attributelistlabel: ID Number

• dataset_eml_attributelistdescription: Record identification number

• dataset_eml_attributeliststoragetype: int

• dataset_eml_attributelistmeasurementtype: nominal

• dataset_eml_attributelistlabel: Date of Collection

• dataset_eml_attributelistdescription: Date and time of collection

• dataset_eml_attributeliststoragetype: datetime

• dataset_eml_attributelistmeasurementtype: datetime
• dataset_eml_attributelistformatstring: YYYY-MM-DDThh:mm:ss

• dataset_eml_attributelistlabel: Highest Elevation Temperature

• dataset_eml_attributelistdescription: Air temperature at the highest elevation (1475 meters)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Highest Elevation Soil Temperature

• dataset_eml_attributelistdescription: Soil temperature at the highest elevation (1475 meters)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Mid Elevation Temperature

• dataset_eml_attributelistdescription: Air temperature at mid elevation (1377 meters)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.001
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Mid Elevation Soil Temperature

• dataset_eml_attributelistdescription: Soil temperature at mid elevation (1377 meters)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.001
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Low Elevation Temperature

• dataset_eml_attributelistdescription: Air temperature at the lowest elevation (1095 meters)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Low Elevation Soil Temperature

• dataset_eml_attributelistdescription: Soil temperature at the lowest elevation (1095 meters)

• dataset_eml_attributeliststoragetype: decimal

• dataset_eml_attributelistmeasurementtype: ratio
• dataset_eml_attributeliststandardunit: celsius
• dataset_eml_attributelistprecision: 0.01
• Unit: celsius
• dataset_eml_attributelistnumbertype: real

• dataset_eml_attributelistlabel: Comments

• dataset_eml_attributelistdescription: Comments

• dataset_eml_attributeliststoragetype: text

• dataset_eml_attributelistmeasurementtype: nominal

• Experimental design
  • dataset_eml_methodsStartDate: 0001-01-01
    
  • dataset_eml_methoddescription: A split-split plot experimental design was used on the plots, split by species (balsam vs fir) first and then samples were split by crown position (sun vs shade). After sample processing, three needles from each sample were used for anatomical measurements.
  dataset_eml_methodsInstrumentation: R:FR meter (Skye instruments); dataset_eml_methodsSoftware: Leica Q500MC and QWin V1.00 (Leica Cambridge Ltd.)

• Photosynthetic rates
  • dataset_eml_methoddescription: Photosynthesis measurements were made on detached shoots with their ends immersed in vials of water. Projected needle area and dry mass were measured and then used to convert the measured photosynthetic rates to projected needle area. Chl NDI and PRI indices were used to obtain physiological insights from the chlorophyll fluorescence and spectral reflectance of dark-adapted foliage.
  dataset_eml_methodsInstrumentation: OS-500 Modulated Fluorometer UniSpec Spectral Analysis System

• Foliar C-13 analysis
  • dataset_eml_methoddescription: Using a pool of three samples from each site x crown position x species combination, an analysis of foliar C-13 was conducted by a commercial laboratory.
  dataset_eml_methodsInstrumentation: Europa Scientific ANCA-GSL elemental analyzerdataset_eml_methodsQAQC: Two replicated of every fifth sample were analyzed sequentially. All samples were run against a flour standard and results are expressed in relation to the PDB standard.

• Electronic image analysis equipment
• dataset_eml_samplingdescription: Electronic image analysis equipment Leica Q500MC and QWin V1.00 software

• Elemental analyzer
• dataset_eml_samplingdescription: Europa Scientific ANCA-GSL elemental analyzer used for C13 analysis

• Fluorometer
• dataset_eml_samplingdescription: OS-500 Modulated Fluorometer was used to measure minimal chlorophyll fluorescence and variable fluorescence.

• R:FR meter
• dataset_eml_samplingdescription: Portable R:FR meter (Skye Instruments) to measure the light environment of shade needles

• Spectral Analysis System
• dataset_eml_samplingdescription: Spectral reflectance was measured using a UniSpec Spectral Analysis System

• dataset_eml_methodsStartDate: 2000-10-01
  dataset_eml_methodsEndDate: 2002-09-30
• dataset_eml_samplingdescription: Hobo H8 Pro data logger with integral thermistor for air temperature and capacitive sensor for relative humidity.

• dataset_eml_methodsStartDate: 2000-10-01
  dataset_eml_methodsEndDate: 2002-09-30
• dataset_eml_samplingdescription: Hobo H8 Pro data logger with integral thermistor for air temperature and capacitive sensor for relative humidity.

• dataset_eml_methodsStartDate: 2000-10-01
  dataset_eml_methodsEndDate: 2002-09-30
• dataset_eml_samplingdescription: Hobo H8 Pro data logger with integral thermistor for air temperature and capacitive sensor for relative humidity.

• dataset_eml_methodsStartDate: 2000-10-01
  dataset_eml_methodsEndDate: 2002-09-30
• dataset_eml_samplingdescription: Hobo H8 Pro data logger with integral thermistor for air temperature and capacitive sensor for relative humidity.