BGS Hosted Metadata
Chemical analyses of soil samples collected from Signy, South Orkney Islands, 2005-2008
To identify and quantify soil N species over a full growth season, small volumes of soil were removed from each sampling site 5 times during the field season and extracted in the laboratory. Bare soil at higher elevations, namely Observation Bluff, Factory Bluffs, Jane Col and lower parts of Spindrift Col; Soils from below mosses on the Backslope and on Moss Braes. Soils from below higher plant species at Bernsten Point, Factory Bluffs, Moss Braes and North Point. Orthinogenic soils from around penguin colonies at Gourlay Peninsula, Spindrift Rocks and North Point and disturbed soil from around Signy Base were collected. At the same time, soil pore water was extracted using Rhizon soil water samplers.
DON (Dissolved organic Nitrogen) and Microbial biomass measurements were made by standard CHCl3 fumigation-extraction techniques. Turnover of DON in the soil was determined by the addition of 14C-labelled plant protein (purified from 14C-labelled algal cells) or 14C-labelled glucose to the soil at a range of concentrations, and their turnover (soil label depletion in combination with NH4 +, NO3-and 14CO2 production) was determined. Gross rates of N mineralization and nitrification were determined using 15N isotope dilution methodology. Laboratory analysis of N speciation and quantification, 14C uptake and respiration, 13C PLFA signatures and 15N analysis was done. Amino acid turnover times have been determined using 14C labelled amino acids. For the final stage of the project a mathematical model to describe plant-soil-microbial N fluxes in Antarctic soils was constructed.
Simple
- Date (Creation)
- 2012-02-29
- Date (Revision)
- 2012-02-29
- Date (Publication)
- 2012-02-29
- Date (released)
- 2012-02-29
- Edition
-
1
- Unique resource identifier
- 29e84ddd-e2df-4fd5-90fa-515ef9eeb42a
- Codespace
-
uuid
- Unique resource identifier
- GB/NERC/BAS/PDC/00602
- Codespace
- Other citation details
-
Please cite this item as: None
- Credit
-
No credit.
- Status
- Completed
- Point of contact
-
Organisation name Individual name Electronic mail address Role University of Bangor
Jones, David
Author British Antarctic Survey Newsham, Kevin
Author University of Bangor
Farrar, John
Author University of Bangor
Roberts, Paula
Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Theme
-
-
Bio-geographical regions
-
Nitrogen cycle
-
Signy Island
-
bare soil
-
mosses
-
orthinogenic soil
-
soil chemical composition
-
soil pore water
-
- Place
-
-
Signy Island Antarctica
-
-
GEMET - INSPIRE themes, version 1.0
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
-
Data released under Open Government Licence V3.0:
- Use constraints
- Other restrictions
- Other constraints
-
Requests for data can be made via the UK Polar Data Centre (UK PDC) at BAS.
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Cross reference
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
-
- Biota
- Environment
))
- Begin date
- 2005-07-28
- End date
- 2008-01-27
Vertical extent
- Minimum value
- 0.0
- Maximum value
- 300.0
Vertical CS
Vertical datum
- Supplemental Information
-
It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.
- Title
-
European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12
- Cited responsible party
-
Organisation name Individual name Electronic mail address Role European Petroleum Survey Group
Publisher
- Unique resource identifier
- urn:ogc:def:crs:EPSG::3031
- Version
-
6.18.3
Distributor
- Distributor contact
-
Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Units of distribution
-
bytes
- Transfer size
- 1
- Hierarchy level
- Dataset
Metadata
- File identifier
- 29e84ddd-e2df-4fd5-90fa-515ef9eeb42a XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2012-02-29
- Metadata standard name
-
ISO 19115 Geographic Information - Metadata
- Metadata standard version
-
ISO 19115:2003(E)
- Metadata author
-
Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Point of contact
)))
