Soil Depth Effects on Soil Biota

Summary

Abstract: 

Investigation of the effect of soil depth on soil biota and properties was part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The number of soil organisms (nematodes, rotifers and tardigrades), divided by species, sex and maturity was monitored at various soil depths in Taylor Valley in order to accomplish this. The study began in the austral summer of 1993/1994. Samples were taken on 20-Dec-1993, 6-Jan-1994, 21-Nov-1994 and 26-Dec-1994.

Date Range: 

January 1, 1993 to December 31, 1994
Data Citation
Wall, D., Virginia, R.A. 2014. McMurdo Dry Valleys LTER: Soil Depth Effects on Soil Biota . Environmental Data Initiative. DOI: 10.6073/pasta/2ad4bcbaa562af15a9da6a0ec9e34947. Dataset accessed 19 September 2019.
Dataset(s)

Description: 

Definition of variables and units used for the spreadsheet containing the DPWO data

Variables (click to expand): 

DATASET_CODE
  • Label:
  • Definition: Dataset Code used to identify the data in the databases.
  • Type: Nominal
  • Missing values: None specified
LOCATION
  • Label:
  • Definition: Location where data was collected.
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date when samples were collected
  • Type: Date/time
  • Date format: MM/DD/YYYY
  • Missing values: None specified
DEPTH_RANGE_CM
  • Label:
  • Definition: Range of depths where samples were collected in centimeters
  • Type: Nominal
  • Missing values: None specified
SAMPLE_NUMBER
  • Label:
  • Definition: alphanumeric identifier for the sample
  • Type: Nominal
  • Missing values: None specified
TYPE_OF_ORGANISM
  • Label:
  • Definition: The type of organism
  • Type: Code list
  • Codes:
    • Nematode = an antarctic nematode
    • Rotifer = a rotifer
    • Tardigrades = A tardigrade
  • Missing values: None specified
SPECIES
  • Label:
  • Definition: The species
  • Type: Code list
  • Codes:
    • Eudorylaimus = Eurorylaimus
    • Plectus = Plectus
    • Scottnema = Scottnema
    • Combined = A mix
    • Unknown = Not known
  • Missing values: None specified
SEX
  • Label:
  • Definition: SEX of the organism
  • Type: Code list
  • Codes:
    • Male = male
    • Female = female
    • Combined = A mix
    • Undetermined = Unknown or undetermined
  • Missing values: None specified
LIVE_DEAD_COMBINED
  • Label:
  • Definition: Living status
  • Type: Code list
  • Codes:
    • Live = Alive
    • Dead = Dead
    • Combined = Mix of dead and alive
    • Undetermined = Cannot or did not determine living status
  • Missing values: None specified
ADULT_JUVENILE_COMBINED
  • Label:
  • Definition: Lifecycle stage
  • Type: Code list
  • Codes:
    • Adult = Adult stage
    • Juvenile = Juvenile stage
    • Combined = Mix of adult and juvenile
    • Undetermined = Did not determine stage
  • Missing values: None specified
TOTAL_NUM_PER_KG_DRY_SOIL
  • Label:
  • Definition: biomass in numbers per kilogram of dry soil
  • Type: Physical quantity
  • Unit: numberPerKilogram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
FILE_NAME
  • Label:
  • Definition: The provenance file name
  • Type: Nominal
  • Missing values: None specified

File: 

DPWO.csv (402.63 KB)

...or query the dataset by variables and dates of interest:

Short name: 

dpwo9394

Dataset ID: 

227
People

Principal Investigator(s): 

Contact: 

Associated Personnel: 

Associated Researcher
Lab Crew
Data Manager
Data Manager