OMS012 [1]
Description:
Annual fertilization treatment for soil chemistry
File upload:
OMS012.csv [2]
Variables:
DataCode
- Label:
- Definition: Dataset Code
- Type: Nominal
- Missing values: None specified
RecType
- Label:
- Definition: Record type
- Type: Physical quantity
- Unit: dimensionless
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values: None specified
TrtID
- Label:
- Definition: Unique ID for every sample composed of treatment (burn and fertilization) combination, plot number, and date (YYYYMMDD)
- Type: Nominal
- Missing values: None specified
Plot
- Label:
- Definition: Field Plot IDs
- Type: Nominal
- Missing values: None specified
Block
- Label:
- Definition: Field Block IDs
- Type: Nominal
- Missing values: None specified
Burn
- Label:
- Definition: Plots are either annually burned (B) or unburned since 1986 (UB)
- Type: Code list
- Codes:
- B = annually burned since 1986
- UB = no fire since 1986
- Missing values: None specified
Nadd
- Label:
- Definition: C = unfertilized control, N = fertilized (10 g N as NH4NO3 per square meter per year), R = recovery (history of fertilization, but fertilization was ceased)
- Type: Code list
- Codes:
- C = unfertilized control
- N = fertilized
- R = recovery
- Missing values: None specified
NaddBurn
- Label:
- Definition: Combination of burn (U or B) and fertilization (C or N or R) treatment. There are 6 combinations: UC, UN, UR, BC, BN, BR
- Type: Nominal
- Missing values: None specified
Month
- Label:
- Definition: Month of sample collection
- Type: Nominal
- Missing values: None specified
Date
- Label:
- Definition: Date of sample collected
- Type: Date/time
- Date format: YYYY-MM-DD
- Missing values: None specified
Resin_NH4
- Label:
- Definition: Mass of nitrogen as ammonium accumulated late April to early September in micrograms per resin bag (included only in September samples)
- Type: Physical quantity
- Unit: microgramsPerKilogram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -999 = Missing or Not Measured
Resin_NO3
- Label:
- Definition: Mass of nitrogen as nitrate accumulated late April to early September in micrograms per resin bag (included only in September samples)
- Type: Physical quantity
- Unit: microgramsPerKilogram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -999 = Missing or Not Measured
GWC
- Label:
- Definition: Gravimetric water content: field water content in grams water gram soil after drying overnight at 105 degrees C
- Type: Physical quantity
- Unit: gramsPerGram
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -999 = Missing or Not Measured
NP
- Label:
- Definition: Nitrification potential: rate of nitrate production in saturing ammonium solution in micrograms nitrogen per gram dry soil per hour
- Type: Physical quantity
- Unit: microgramsPerGramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -999 = Missing or Not Measured
N2O_none
- Label:
- Definition: Denitrification potential: rate of nitrous oxide production from ambient soil nutrients in micrograms nitrogen per kilogram dry soil per hour
- Type: Physical quantity
- Unit: microgramsPerKilogramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -999 = Missing or Not Measured
N2O_CN
- Label:
- Definition: Denitrification enzyme assay: rate of nitrous oxide production when unlimiting substrates of glucose and nitrate were added in micrograms nitrogen per kilogram dry soil per hour
- Type: Physical quantity
- Unit: microgramsPerKilogramPerHour
- Maximum: Not specified
- Minimum: Not specified
- Precision: Not specified
- Missing values:
- -999 = Missing or Not Measured
Number of records:
240