2008Toolik_ProteolyticActivity_csv

Proteolytic enzyme activity of organic and mineral soil core samples collected near Toolik Lake field station, Alaska, July 2001

Variables

Soil Layer
  • Label: Soil Layer
  • Definition: Organic layer, mineral layer
  • Type: Nominal
  • Missing values: None specified
% C
  • Label: % C
  • Definition: percentage carbon per soil mass
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
% N
  • Label: % N
  • Definition: percentage nitrogen per soil mass
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
C/N
  • Label: C/N
  • Definition: ratio percentage carbon to percentage nitrogen
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
DON
  • Label: DON
  • Definition: dissolved organic nitrogen
  • Type: Physical quantity
  • Unit: microgramPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
TSP
  • Label: TSP
  • Definition: total soluble protein
  • Type: Physical quantity
  • Unit: milligramPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
TFAA
  • Label: TFAA
  • Definition: total free amino acids
  • Type: Physical quantity
  • Unit: microgramPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
DIN
  • Label: DIN
  • Definition: dissolved inorganic nitrogen
  • Type: Physical quantity
  • Unit: microgramPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
pH
  • Label: pH
  • Definition: acidity or alkalinity determination
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = Blanks (no data)
BD
  • Label: BD
  • Definition: bulk density
  • Type: Physical quantity
  • Unit: gramPerCentimeterCubed
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = Blanks (no data)
MC
  • Label: MC
  • Definition: moisture content
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
Subsampling Time
  • Label: Subsampling Time
  • Definition: time subsamples taken during a time course
  • Type: Physical quantity
  • Unit: hour
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
[Toluene]
  • Label: [Toluene]
  • Definition: toluene concentration to reduce immobilization
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
NPEA
  • Label: NPEA
  • Definition: native proteolytic enzyme activity (amino acid N/gDW)
  • Type: Physical quantity
  • Unit: microgramPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
PPEA
  • Label: PPEA
  • Definition: potential proteolytic enzyme activity (amino acid N/gDW)
  • Type: Physical quantity
  • Unit: microgramPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
Matrix (Buffer)
  • Label: Matrix (Buffer)
  • Definition: blank values (amino acid N) (blank values = control values) Note: 0 values are real (data not missing)
  • Type: Physical quantity
  • Unit: microgram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
Matrix (Buffer + Casein)
  • Label: Matrix (Buffer + Casein)
  • Definition: blank values (amino acid N) (blank values = control values)
  • Type: Physical quantity
  • Unit: microgram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • "" = BLANKS (NO DATA)
Data Source Details

Header lines: 

1

Orientation: 

Column

Quote character: 

"

Field delimiter: 

,

Record delimiter: 

\r\n

Number of Records: 

162