General Information
|
| Title: | Soil respiration and temperature measurements at 5 GCE-LTER sampling sites from June 2003 to March 2005 |
| Identifier: | knb-lter-gce.275.16 |
| Alternate Identifier: | ORG-GCEM-0508a.1.2 |
| Abstract: |
Soil temperature and respiration were measured in tidal marshes at five GCE-LTER sampling sites. The sites represent estuaries of the Georgia coast (USA) that vary in delivery of freshwater and sediment. Replicate measurements were taken from several locations at each site (levee, marsh plain, and marsh dieback) on seven dates between June 2003 and March 2005 to evaluate the effects of freshwater input on soil respiration over time.
|
| Keywords: | GCE-LTER Controlled Vocabulary:
- Georgia
(place)
- Sapelo Island
(place)
- USA
(place)
- GCE
(theme)
- LTER
(theme)
LTER Controlled Vocabulary:
- estuaries
(theme)
- freshwater
(theme)
- marshes
(theme)
- respiration
(theme)
- sediments
(theme)
- soils
(theme)
- temperature
(theme)
LTER Core Research Areas:
|
|
Publication Date: | 2006 |
|
|
|
Involved Parties
Data Set Creators
|
|
Organization: | Georgia Coastal Ecosystems LTER Project |
|
Address: |
| Dept. of Marine Sciences, |
| University of Georgia, |
| Athens, Georgia 30602-3636 USA |
|
|
Email Address:
|
|
|
Web Address:
|
|
|
|
Individual: | Dr. Christopher Craft |
|
Organization: | Indiana University at Bloomington |
|
Address: |
| Indiana University - School of Public and Environmental Affairs, |
| Room 408. MSB II., |
| 702 N. Walnut Grove Ave., |
| Bloomington, Indiana 47405 USA |
|
|
Email Address:
|
|
|
Web Address:
|
|
|
|
Data Set Contacts
|
|
Position: | GCE-LTER Information Manager |
|
Address: |
| Dept. of Marine Sciences, |
| University of Georgia, |
| Athens, Georgia 30602-3636 USA |
|
|
Email Address:
|
|
|
Metadata Providers
|
|
Organization: | Georgia Coastal Ecosystems LTER Project |
|
Address: |
| Dept. of Marine Sciences, |
| University of Georgia, |
| Athens, Georgia 30602-3636 USA |
|
|
Email Address:
|
|
|
Web Address:
|
|
|
Data Set Publishers
|
|
Organization: | Georgia Coastal Ecosystems LTER Project |
|
Address: |
| Dept. of Marine Sciences, |
| University of Georgia, |
| Athens, Georgia 30602-3636 USA |
|
|
Email Address:
|
|
|
Web Address:
|
|
|
Data Set Characteristics
| Geographic Region: |
| Geographic Description: | Overall bounding box describing the geographic region within the Georgia Coastal Ecosystems LTER study domain represented in data set ORG-GCEM-0508a, based on the maximum geographic extents of all site polygons referenced in the data set |
|
Bounding Coordinates:
|
| West: | -81.493498 degrees
|
| East: | -81.258908 degrees
|
| North: | 31.497026 degrees
|
| South: | 31.304063 degrees
|
|
|
|
|
Sampling, Processing and Quality Control Methods
|
Step by Step Procedures
|
| Step 1: |
|
|
Description:
|
Soil Respiration
Soil respiration measurements were taken using a PP Systems EGM-4 respiration unit in which samples were run over a five minute period with the sample cylinder sealed to the soil surface. Temperature was also measured using the EGM-4 temperature probe inserted approximately 10 cm deep into the soil.
|
|
Instrument(s):
| Gas Analyzer; manufacturer: PP Systems (model: EGM-4); parameter: CO2 Concentration (accuracy: 1%, readability: 1 ppm, range: 0-100,000 ppm) |
|
Instrument(s):
| Soil Respirometer; manufacturer: PP Systems (model: SRC-1); parameter: CO2 Respiration (accuracy: 1%, ) |
|
Instrument(s):
| Soil Temperature Probe; manufacturer: PP Systems (model: STP-1); parameter: Soil Temperature (accuracy: 0.5�C, readability: 1�C, ) |
|
Sampling Coverage:
|
|
|
Sampling Coverage:
|
| Geographic Region: |
| Geographic Description: | GCE Study Site GCE6 -- Dean Creek, Sapelo Island, Georgia, USA. Doboy Sound/salt marsh site at the southern end of Sapelo Island near Dean Creek and the Sapelo lighthouse. A few small creeks are present, but a large creek (Dean Creek) is easily accessed. Upland is composed of small hammocks and some constructed causeways, with sand dune complexes east of Dean Creek and extending to the beach. Upper end of the watershed is affected by a culvert at Beach Road and heavy student use of marsh immediately adjacent to culvert. A hydrographic sonde is deployed in Doboy Sound near Commodore Island approximately 1.5km from this site. GCE6 is also the focus of Sapelo Island Microbial Observatory research on microbial diversity and genomics (http://simo.marsci.uga.edu) |
|
Bounding Coordinates:
|
| West: | -81.299522 degrees
|
| East: | -81.264378 degrees
|
| North: | 31.394072 degrees
|
| South: | 31.371003 degrees
|
|
| Geographic Region: |
| Geographic Description: | GCE Study Site GCE7 -- Carrs Island, Georgia, USA. Freshwater marsh site along the northern bank of Hammersmith Creek at the south end of Carrs Island. Upland area is heavily forested. Northern 3/4 of the island was diked for rice agriculture, but the southern 1/4 is undisturbed. A hydrographic sonde is deployed in the Altamaha River near Hammersmith Creek, adjacent to this site. |
|
Bounding Coordinates:
|
| West: | -81.493498 degrees
|
| East: | -81.475900 degrees
|
| North: | 31.348774 degrees
|
| South: | 31.334364 degrees
|
|
| Geographic Region: |
| Geographic Description: | GCE Study Site GCE8 -- Alligator Creek, Georgia, USA. Mid-estuary/salt marsh site on the west side of Friday Cap Creek along the Altamaha River. This is a brackish marsh with salinities around 14 PSU during drought, less than 5 PSU normally. A hydrographic sonde is deployed adjacent to this site in the Altamaha River near Alligator Creek, attached to the US Coast Guard Daymarker 2 pilings. |
|
Bounding Coordinates:
|
| West: | -81.426272 degrees
|
| East: | -81.410634 degrees
|
| North: | 31.317808 degrees
|
| South: | 31.304063 degrees
|
|
| Geographic Region: |
| Geographic Description: | GCE Study Site GCE9 -- Rockdedundy Island, Georgia, USA. Lower estuary tidal creek and marsh site at Rockdedundy Island west of Wolf Island. A hydrographic sonde is deployed approximately 2km from this site in the Altamaha River near Rockdedundy Island, attached to the US Coast Guard Daymarker 201 pilings. |
|
Bounding Coordinates:
|
| West: | -81.346730 degrees
|
| East: | -81.326495 degrees
|
| North: | 31.358142 degrees
|
| South: | 31.339173 degrees
|
|
| Geographic Region: |
| Geographic Description: | GCE Study Site GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA. Barrier island/marsh site on western Sapelo Island. This site is located at the upper reaches of the Duplin River, and is within the Sapelo Island National Estuarine Research Reserve. Existing well fields border small marsh area to northwest, some wells have been installed to south end of hammock where marsh is more extensive and permanent plots are located. Two existing hydrographic sondes and weather stations within this site are operated by SINERR (Hunt Camp dock) and UGAMI (flume dock). |
|
Bounding Coordinates:
|
| West: | -81.295506 degrees
|
| East: | -81.258908 degrees
|
| North: | 31.497026 degrees
|
| South: | 31.462320 degrees
|
|
|
|
Sampling Description:
|
Soil Respiration Survey
This study is part of the GCE-LTER soil monitoring program. Marshes of estuaries on the Georgia coast that varied in inputs of freshwater, were selected for sampling. Locations were randomly selected within the tidal marsh at each site on levees and in plains, and also in dieback areas if present.
Seven times between June 2003 and March 2005, replicate measurements were made on the levee and the marsh plain at each site . Soil temperature at 10 cm depth was also measured.
|
|
Data Set Usage Rights
|
All publications based on this data set must cite the contributor and Georgia Coastal Ecosystems LTER project, and two copies of the manuscript must be submitted to the GCE-LTER Information Management Office.
|
|
