2000lgshttbm_excel

Excel file with metadata and data sheets.
Aboveground plant and belowground stem biomass were measured in moist acidic and moist non-acidic tussock tundra experimental plots, Toolik Field Station, Alaska, Arctic LTER 2000.

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Variables

Date
  • Label: Date
  • Definition: Date of beginning of harvest. Harvests usually last 4-5 days.
  • Type: Date/time
  • Date format: dd-mmm-yyyy
  • Missing values: None specified
Site
  • Label: Site
  • Definition: Site of harvest
  • Type: Nominal
  • Missing values: None specified
Treatment
  • Label: Treatment
  • Definition: Plot treatment
  • Type: Nominal
  • Missing values: None specified
Growth Form
  • Label: Growth Form
  • Definition: Growth form of species
  • Type: Nominal
  • Missing values: None specified
Species
  • Label: Species
  • Definition: The species sampled or a lumped group. See ?Notes on lumped species? under this variable for notes on species grouped together. ?Seedlings? indicates the number and identity of seedlings found in that quadrat. ?Comments? includes additional information about the quadrat.
  • Type: Nominal
  • Missing values: None specified
Tissue
  • Label: Tissue
  • Definition: The tissue type
  • Type: Nominal
  • Missing values: None specified
Biomass Category
  • Label: Biomass Category
  • Definition: growth category of the biomass sample
  • Type: Nominal
  • Missing values: None specified
B1Q1
  • Label: B1Q1
  • Definition: oven dried weight of sample collected in a quadrat. (Code of variable name: B for block and the number following the B is the block number. The Q stands for quadrat with the number following the Q being the quadrat number)
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B1Q1
  • Label: B1Q1
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B1Q2
  • Label: B1Q2
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B1Q3
  • Label: B1Q3
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B1Q4
  • Label: B1Q4
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B2Q1
  • Label: B2Q1
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B2Q2
  • Label: B2Q2
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B2Q3
  • Label: B2Q3
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B3Q1
  • Label: B3Q1
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B3Q2
  • Label: B3Q2
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B3Q3
  • Label: B3Q3
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B3Q4
  • Label: B3Q4
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B4Q1
  • Label: B4Q1
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B4Q2
  • Label: B4Q2
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B4Q3
  • Label: B4Q3
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
B4Q4
  • Label: B4Q4
  • Definition: oven dried weight of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
Average g/quad
  • Label: Average g/quad
  • Definition: Average of all quadrats for that species and tissue type.
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
Std. Err.
  • Label: Std. Err.
  • Definition: Standard Error of the mean for species and tissue type.
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
Count
  • Label: Count
  • Definition: Number of quadrats
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • NA = Missing or Not Measured
Average g/m2
  • Label: Average g/m2
  • Definition: Average of all quadrats expressed as
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
Std. Err. g/m2
  • Label: Std. Err. g/m2
  • Definition: Standard error of the mean in
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • na = Missing or Not Measured
Species Comments
  • Label: Species Comments
  • Definition: Notes on lumped species categories.
  • Type: Nominal
  • Missing values: None specified
Comments
  • Label: Comments
  • Definition: Comments about individual samples.
  • Type: Nominal
  • Missing values: None specified
Data Source Details

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