Published on
McMurdo Dry Valleys LTER
(
https://mcm.lternet.edu
)
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:
January 15, 2007
to
January 15, 2016
Dataset(s)
Variables (click to expand):
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
File:
SOILS_SE_CHEM.csv
(161.26 KB)
Short name:
SOILS_SE_CHEM
Dataset ID:
4013
People
Principal Investigator(s):
Ross A. Virginia
Diana H. Wall
Contact:
McMurdo Dry Valleys LTER
Associated Personnel:
Associated Researcher
John "Jeb" E. Barrett
Associated Researcher
Byron J. Adams
Lab Crew
Dorota Porazinska
Field Crew
Breana L. Simmons
Field Crew
Ed Ayres
Lab Crew
Uffe N. Nielsen
Lab Crew
Zachary Sylvain
Lab Crew
Bishwo N. Adhikari
Lab Crew
Becky A. Ball
Data Manager
Michelle L Haddix
Source URL:
https://mcm.lternet.edu/content/stoichiometry-experiment