sev153_cross15n_20160217.txt

15N tracer study data from the years 1989-2002.

Date Range: 

Sunday, January 1, 1989 to Tuesday, December 31, 2002

File Download: 

Variables
Id
  • Label: Id
  • Definition: The number which identifies a given sample based on the plot from which it was taken. Plots are associated with samples by the hundreds place (i.e., sample 234 was taken from plot 200).
  • Type: Nominal
  • Missing values: None specified
Site
  • Label: Site
  • Definition: Indicates whether a sample was taken under or between plants.
  • Type: Code list
  • Codes:
    • between = sample taken between plants
    • under = sample taken under plants
  • Missing values: None specified
Vegetation Type
  • Label: Veg
  • Definition: Vegetation type where data were collected.
  • Type: Code list
  • Codes:
    • grass = grassland
    • shrub = shrubland
  • Missing values: None specified
Delta15N-89
  • Label: Delta15N-89
  • Definition: The change in the amount of nitrogen 15 detected in soil in 1989.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-90
  • Label: Delta15N-90
  • Definition: The change in the amount of nitrogen 15 detected in soil in 1990.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-91
  • Label: Delta15N-91
  • Definition: The change in the amount of nitrogen 15 detected in soil in 1991.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-92
  • Label: Delta15N-92
  • Definition: The change in the amount of nitrogen 15 detected in soil in 1992.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-93
  • Label: Delta15N-93
  • Definition: The change in the amount of nitrogen 15 detected in soil in 1993.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-99
  • Label: Delta15N-99
  • Definition: The change in the amount of nitrogen 15 detected in soil in 1999.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-01
  • Label: Delta15N-01
  • Definition: The change in the amount of nitrogen 15 detected in soil in 2001.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
Delta15N-02
  • Label: Delta15N-02
  • Definition: The change in the amount of nitrogen 15 detected in soil in 2002.
  • Type: Physical quantity
  • Unit: microgramsPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • ò = missing
%N89
  • Label: %N89
  • Definition: The percentage of nitrogen detected in soil in 1989.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
%N90
  • Label: %N90
  • Definition: The percentage of nitrogen detected in soil in 1990.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
%N91
  • Label: %N91
  • Definition: The percentage of nitrogen detected in soil in 1991.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
%N92
  • Label: %N92
  • Definition: The percentage of nitrogen detected in soil in 1992.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
%N93
  • Label: %N93
  • Definition: The percentage of nitrogen detected in soil in 1993.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
%N99
  • Label: %N99
  • Definition: The percentage of nitrogen detected in soil in 1999.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
%N02
  • Label: %N02
  • Definition: The percentage of nitrogen detected in soil in 2002.
  • Type: Physical quantity
  • Unit: percentage
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values:
    • ò = missing
Data Source Details

Header lines: 

1

Orientation: 

Column

Field delimiter: 

,

Record delimiter: 

\r\n