McMurdo Dry Valleys LTER
Published on McMurdo Dry Valleys LTER (https://mcm.lternet.edu)


Summary

Abstract: 

Investigation of the effect of hydrological and biogeochemical linkages in the transition zone between streams and surrounding soils on invertebrate community structure as part of the McMurdo Dry Valleys Long Term Ecological Research (LTER) project. The invertebrate community structure with relation to soil moisture, salinity, and chlorophyll-a was determined. The study took place on 28 November 1997 and 31 December 1997 in theĀ Von Guerard Stream/Harnish Creek network.

Dataset(s)

Description: 

comma delimited spreadsheet containing the rsso data described here

Variables (click to expand): 

LOCATION
  • Label:
  • Definition: Name of area where measurement was made
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label: Date
  • Definition: Date on which sample was gathered
  • Type: Date/time
  • Date format: mm/dd/yyyy
  • Missing values: None specified
SAMPLE #
  • Label:
  • Definition: ID associated with transect, sampling location
  • Type: Nominal
  • Missing values: None specified
SOIL WATER CONTENT (%)
  • Label:
  • Definition: Percent water found in soil
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: 100
  • Minimum: 0
  • Precision: 0.0001
  • Missing values:
    • null = None given
COMMENTS
  • Label:
  • Definition: Helpful hints about the sample
  • Type: Nominal
  • Missing values: None specified
FILE NAME
  • Label:
  • Definition: Name of file in which data was stored
  • Type: Nominal
  • Missing values: None specified

File: 

rsso.csv (3.24 KB)

Short name: 

rsso

Dataset ID: 

258
People

Principal Investigator(s): 

Diana H. Wall

Contact: 

McMurdo Dry Valleys LTER

Associated Personnel: 

Associated Researcher
Ross A. Virginia
Data Manager
Inigo San Gil
Related

Related publications: 

Invertebrate biodiversity in Antarctic Dry Valley soils and sediments
Methodology

Methods: 

Approximately 1500g of soil or sediment were collected into Whirl-Pak(tm) bags with clean plastic scoops from 5 sections (0, 8, 16, 24, and 32 m away from the stream) along each transect. Five grams of sediment/soil were also collected from the top 1 cm for measurement of chlorophyll-a concentrations. Samples were mixed within the bags, placed into insulated coolers, and transported for analysis to the McMurdo laboratories. The soils were processed within 24 days of collection from the field. Until then, the soils were stored in a 4_C refrigerator. On return to the laboratory (within 8 hours of sampling), the soils were stored at 5C until further processing. In the laboratory, soil samples were handled in a laminar flow hood to prevent contamination. The Whirlpak bags of soil were mixed thoroughly prior to opening . A sub-sample of approximately 50g was removed and placed in a pre-weighed aluminum soil can, and weighed on a balance accurate to 0.01g. This sample was dried at 105C for 24 hours. The sample was removed, placed in a desiccator to cool down, and re-weighed. These data were used to calculate water content of the soil.

Maintenance: 

This file was created by Pilar Tillberg on 11 May 2001, using raw data from the Excel workbook '9711rsso.raw'. The file format was suggested by the LTER data manager, to conform with the relational database structure. [PT 11 May 2001].

Additional information: 

Sample ID's are coded so that the first number indicates which transect, and the second number indicates the distance (m) away from the stream along the transect.
Categories

Research Section: 

  • Soils
  • Soil Physics

LTER Core Areas: 

  • population dynamics

MCM Keywords: 

  • Antarctica
  • LTER
  • soil
  • soil moisture

Source URL: https://mcm.lternet.edu/content/stream-transects-soil-moisture