Stoichiometry Experiment

Summary

Abstract: 

Soil communities in the McMurdo Dry Valleys are subject to many limitations, including resource limitations. However, the nutrients that are predominantly limiting to growth and diversity of soil biota are not known. Additionally, landscape history (N deposition, P weathering) and native N and P content (glacial till provenance) may influence the ability of soil communities to respond to nutrient additions or changes in nutrient availability associated with environmental change. Long-term experiments in the Bonney and Fryxell basins have been established with yearly application of aqueous nutrient additions: C, N, P, CN, and CP. Multiple nutrients additions were made at the Redfield Ratio of 106:16:1 (C:N:P). Responses of soil chemistry, CO2 flux, and biota are reported.

Date Range: 

Monday, January 15, 2007 to Wednesday, January 13, 2010

...or query the data clicking the:

Variables: 

DATASET_CODE
  • Label:
  • Definition: Unique identifier for the table in the MCM LTER database
  • Type: Nominal
  • Missing values: None specified
BASIN
  • Label:
  • Definition: The lake basin where the soil sample was collected from (Bonney or Fryxell).
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: The date the soil sample was collected from the field
  • Type: Date/time
  • Date format: mm/dd/yyyy
  • Missing values: None specified
SAMPLE_ID
  • Label:
  • Definition: The block and treatment combination of the sample.
  • Type: Nominal
  • Missing values: None specified
BLOCK_ID
  • Label:
  • Definition: The block number that the soil sample was collected from.
  • Type: Nominal
  • Missing values: None specified
TREATMENT
  • Label: Treatment
  • Definition: The manipulation for a given plot from where the soil was collected. See 'Additional Info' for treatment codes
  • Type: Nominal
  • Missing values: None specified
SOIL_WATER_CONTENT
  • Label: Soil water content
  • Definition: The gravimetric soil water content
  • Type: Physical quantity
  • Unit: percent g/g
  • Maximum: 100
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PH
  • Label: pH
  • Definition: The opposite log of the hydrogen ion concentration of a 1:2 soil-water paste
  • Type: Physical quantity
  • Unit: pH
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
CONDUCTIVITY
  • Label:
  • Definition: The electrical conductivity in microSiemens/cm of a 1:5 soil:deionized water solution.
  • Type: Physical quantity
  • Unit: microSiemens/cm
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • Null = None given
NH4_N
  • Label:
  • Definition: Ammonia concentration found using Lachat
  • Type: Physical quantity
  • Unit: microgram/g soil
  • Maximum: 2000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
NO3_NO2_N
  • Label:
  • Definition: Nitrate concentration found using Lachat
  • Type: Physical quantity
  • Unit: microgram/g soil
  • Maximum: 2000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
PO4_P
  • Label:
  • Definition: Phosphate concentration found using Lachat
  • Type: Physical quantity
  • Unit: microgram/g soil
  • Maximum: 2000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
TC
  • Label:
  • Definition: Total carbon (% C by wt.), the carbon content of the unacidified soil.
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
TN
  • Label:
  • Definition: Total nitrogen (% N by wt.), the nitrogen content of the unacidified soil.
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SOC
  • Label:
  • Definition: Soil organic carbon (% C by wt.), the carbon content of acidified soil
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
MICROBIAL_C
  • Label: Microbial-C
  • Definition: Microbial biomass carbon
  • Type: Physical quantity
  • Unit: microgram C/g soil
  • Maximum: 2000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
MICROBIAL_N
  • Label: Microbial-N
  • Definition: Microbial biomass nitrogen
  • Type: Physical quantity
  • Unit: microgram N/g soil
  • Maximum: 2000
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
CHEM_COMMENTS
  • Label: Chemistry data Comments
  • Definition: Any comments about the chemistry data records collected
  • Type: Nominal
  • Missing values: None specified
SML
  • Label:
  • Definition: Abundance of live male Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SMD
  • Label:
  • Definition: Abundance of dead male Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SFL
  • Label:
  • Definition: Abundance of live female Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SFD
  • Label:
  • Definition: Abundance of dead female Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SJL
  • Label:
  • Definition: Abundance of live juvenile Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SJD
  • Label:
  • Definition: Abundance of dead juvenile Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SA
  • Label:
  • Definition: Abundance of live and dead adult Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
SJ
  • Label:
  • Definition: Abundance of live and dead juvenile Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
STL
  • Label:
  • Definition: Total Abundance of live Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
STD
  • Label:
  • Definition: Total Abundance of dead Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
STDL
  • Label:
  • Definition: Total Abundance of live and dead Scottnema lindsayae extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EML
  • Label:
  • Definition: Abundance of live male Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EMD
  • Label:
  • Definition: Abundance of dead male Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EFL
  • Label:
  • Definition: Abundance of live female Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EFD
  • Label:
  • Definition: Abundance of dead female Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EJL
  • Label:
  • Definition: Abundance of live juvenile Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EJD
  • Label:
  • Definition: Abundance of dead juvenile Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EA
  • Label:
  • Definition: Abundance of live and dead adult Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
EJ
  • Label:
  • Definition: Abundance of live and dead juvenile Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
ETL
  • Label:
  • Definition: Total abundance of live Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
ETD
  • Label:
  • Definition: Total abundance of dead Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
ETLD
  • Label:
  • Definition: Total abundance of live and dead Eudorylaimus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PFL
  • Label:
  • Definition: Abundance of live female Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PFD
  • Label:
  • Definition: Abundance of dead female Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PJL
  • Label:
  • Definition: Abundance of live juvenile Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PJD
  • Label:
  • Definition: Abundance of dead juvenile Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PA
  • Label:
  • Definition: Abundance of live and dead adult Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PJ
  • Label:
  • Definition: Abundance of live and dead juvenile Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PTL
  • Label:
  • Definition: Total abundance of live Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PTD
  • Label:
  • Definition: Total abundance of dead Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
PTLD
  • Label:
  • Definition: Total abundance of live and dead Plectus sp. extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
TOTAL_ROTIFERS
  • Label: Total Rotifers
  • Definition: Total abundance of live rotifers extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
TOTAL_TARDIGRADES
  • Label: Total Tardigrades
  • Definition: Total abundance of live tardigrades extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
TOTAL_LIVE
  • Label: Total Alive
  • Definition: Total abundance of live nematodes extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
TOTAL_DEAD
  • Label: Total Dead
  • Definition: Total abundance of dead nematodes extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
TOTAL
  • Label:
  • Definition: Total abundance of live and dead nematodes extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
OTHER_ORGANISMS
  • Label: Other Organisms
  • Definition: Abundance of other organisms extracted from soil (#/kg dry soil)
  • Type: Physical quantity
  • Unit: # / kg drysoil
  • Maximum: Not specified
  • Minimum: 0
  • Precision: Not specified
  • Missing values:
    • Null = None given
COMMENTS
  • Label:
  • Definition: Information about samples and occurrence of other organisms
  • Type: Nominal
  • Missing values: None specified

DOI: 

10.6073/pasta/32f72762a317a9f4f453ecf023b9d1be

Short name: 

SE_CHEM

Data set ID: 

4013
People

Owner/Creator: 

Contact: 

Additional Project roles: 

Associated Researcher
Associated Researcher
Field Crew
Field Crew
Lab Crew
Lab Crew
Lab Crew
Lab Crew
Data Manager