sev146_fireeffects_20150225.txt

Data for study on the effects of prescribed fires on desert grasslands.

Date Range: 

Wednesday, June 11, 2003 to Thursday, May 15, 2014

File Download: 

Variables
Date
  • Label: Date
  • Definition: Date of the sample collection
  • Type: Date/time
  • Date format: YYYYMMDD
  • Missing values: None specified
location
  • Label: location
  • Definition: the number of the bridge where data is collected
  • Type: Nominal
  • Missing values: None specified
treat
  • Label: treat
  • Definition: plot treatment
  • Type: Code list
  • Codes:
    • pre-burn = before burn treatment
    • control = unburned
    • burn = after burn treatment
  • Missing values: None specified
cover
  • Label: covertype
  • Definition: whether sample is taken under grass or bare soil
  • Type: Nominal
  • Missing values: None specified
treatment and cover
  • Label: treat/cover
  • Definition: treatment and cover of the area around the bridge
  • Type: Code list
  • Codes:
    • pb = preburn, bare
    • pg = preburn, grass
    • cb = control, bare
    • cg = control, grass
    • bb = burn, bare
    • bg = burn, grass
  • Missing values: None specified
% cover
  • Label: %_cover
  • Definition: relative portion of bridge with vegetation cover or bare soil
  • Type: Physical quantity
  • Unit: percent
  • Maximum: 1
  • Minimum: 0
  • Precision: 0.01
  • Missing values: None specified
Field water
  • Label: FW (ml/g DW soil)
  • Definition: Water content of sample after sieving; used as estimate of field water content; ml water/g dry soil.
  • Type: Physical quantity
  • Unit: millilitersPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
WHC
  • Label: WHC (ml/g DW soil)
  • Definition: The water content of a sample when at its water holding capacity (WHC) ((wet sample weight-dry weight)/dry weight).
  • Type: Physical quantity
  • Unit: millilitersPerGram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Organic Matter
  • Label: OM
  • Definition: Loss-upon-ignition of 100 g of soil (units are g OM/100 g soil). (weight lost after ignition/total dry weight sample)
  • Type: Physical quantity
  • Unit: gram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Time 0 extractable nitrate-nitogen
  • Label: T0 NO3
  • Definition: extractable nitrate-nitrogen at beginning of incubation. (time 0)(mg of NO3-N per kg of dry soil)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Time 0 extractable ammonium nitrogen
  • Label: T0 NH4
  • Definition: extractable ammonium-nitrogen at beginning of incubation. (time 0)(mg of NH4-N per kg of dry soil)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
sum of T0 nitrate-N and ammonium-N
  • Label: T0 sum
  • Definition: sum of extractable nitrate-nitrogen and ammonium-nitrogen at beginning of incubation. (time 0)(mg of N per kg of dry soil)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Day 42 extractable nitrate-nitrogen
  • Label: T42 NO3
  • Definition: extractable nitrate-nitrogen at end of 42-day incubation (mg of NO3-N per kg of dry soil)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Day 42 Ammonium-N
  • Label: T42 NH4
  • Definition: extractable ammonium-nitrogen at end of 42-day incubation (mg of NO3-N per kg of dry soil)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Day 42 sum of nitrate-N and ammonium-N
  • Label: T42 sum
  • Definition: Sum of extractable nitrate-nitrogen and ammonium-nitrogen at end of 42-day incubation (mg of N per kg of dry soil)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
weighted T0 sum of N
  • Label: Plot T0 sum
  • Definition: weighted T0 sum-N for cover and summed for plot. For post burn plots, use relative cover of preburn to keep consistant (mg N/kg dry soil). (T0 Sum N)*(%bare) + (T0 Sum N)*(%grass)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Weight T42 Sum of N
  • Label: Plot T42 sum
  • Definition: weighted T42 sum-N for cover and summed for plot (mg N/kg dry soil). (42 sum N)*(%bare)+ (T42 sum N)*(%grass)
  • Type: Physical quantity
  • Unit: milliGramsPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.001
  • Missing values: None specified
Data Source Details

Header lines: 

1

Orientation: 

Column

Field delimiter: 

,

Record delimiter: 

\r\n