Excel file with metadata and data sheets.
Nitrogen mineralization was determined on Arctic LTERToolik and Sag River tussock tundra using the buried bag method, Toolik Field Station, Alaska, Arctic LTER 1989-2006.
Download:
1986_to_presentgsbbag.xls (424 KB)Variables
Date
- Label: Date
- Definition: date of collection
- Type: Date/time
- Date format: dd-mmm-yyyy
- Missing values: None specified
Location
- Label: Location
- Definition: Location of site; Sag or Toolik.
- Type: Nominal
- Missing values: None specified
Site
- Label: Site
- Definition: Landscape toposequence Site number for Sag; for Toolik same as block number
- Type: Nominal
- Missing values: None specified
Block
- Label: Block
- Definition: Block number for Toolik; plot number for Sag.
- Type: Nominal
- Missing values: None specified
Rep
- Label: Rep
- Definition: Replicate number for core.
- Type: Nominal
- Missing values: None specified
Treatment
- Label: Treatment
- Definition: Plot treatment.
- Type: Nominal
- Missing values: None specified
Moisture
- Label: Moisture
- Definition: Soil moisture calculated from core on per cent mass basis.
- Type: Physical quantity
- Unit: percent
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
BulkDensity
- Label: BulkDensity
- Definition: Bulk Density of core
- Type: Physical quantity
- Unit: gramPerCentimeterCubed
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
Length
- Label: Length
- Definition: the length of the core determined by measuring the core hole (excluding plants)
- Type: Physical quantity
- Unit: centimeter
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlNH4Nug_g
- Label: dlNH4Nug_g
- Definition: difference (delta) between previous initial NH4-N extract and bagged NH4-N extract
- Type: Physical quantity
- Unit: microgramPerGram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlNO3Nug_g
- Label: dlNO3Nug_g
- Definition: difference (delta) between previous initial NO3-N extract and bagged NO3-N extract
- Type: Physical quantity
- Unit: microgramPerGram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlTNug_g
- Label: dlTNug_g
- Definition: total delta N = delta NO3 ug/g + delta NH4
- Type: Physical quantity
- Unit: microgramPerGram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlPO4Pug_g
- Label: dlPO4Pug_g
- Definition: difference (delta) between previous initial PO4-P extract and bagged PO4-P extract
- Type: Physical quantity
- Unit: microgramPerGram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlNH4Ng_m2
- Label: dlNH4Ng_m2
- Definition: dlNH4Nug_g * bulk density * length * 10000 cm2/m2 * .000001 g/ug
- Type: Physical quantity
- Unit: gramPerMeterSquared
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlNO3Ng_m2
- Label: dlNO3Ng_m2
- Definition: dlNO3Nug_g * bulk density * length * 10000 cm2/m2 * .000001 g/ug
- Type: Physical quantity
- Unit: gramPerMeterSquared
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlTNg_m2
- Label: dlTNg_m2
- Definition: dlNH4Ng_m2 + dlNO3Ng_m2
- Type: Physical quantity
- Unit: gramPerMeterSquared
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
dlPO4Pg_m2
- Label: dlPO4Pg_m2
- Definition: dlPO4P4ug_g * bulk density * length * 10000 cm2/m2 * .000001 g/ug
- Type: Physical quantity
- Unit: gramPerMeterSquared
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- #N/A = Missing or Not Measured
COMMENTS
- Label: COMMENTS
- Definition: notes and comments about the data
- Type: Nominal
- Missing values: None specified