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GCE-LTER Data Set Summary
Accession:
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POR-GCEM-2101
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Research Theme:
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Pore-water Chemistry (Monitoring)
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Contributors:
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Steven C. Pennings, Alyssa Peterson, Dontrece Smith, Jacob Shalack
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Title:
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Soil salinity and organic content at GCE-LTER vegetation monitoring plots in October 2020
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Abstract:
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Soil samples were collected in conjunction with Fall 2020 plant monitoring at half of the permanent vegetation monitoring plots in the creekbank and midmarsh zones at 10 GCE study sites. Pore-water salinity was determined by analysis of supernatant salinity in dried soil samples hydrated with a measured volume of deionized water. Organic content was measured gravimetrically by comparing ash-free dry weight and total weight of soil samples.
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DOI:
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10.6073/pasta/31527551a4a7096727e15cb7b6cb4de5
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Key Words:
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chemistry, marshes, mud, permanent plots, porewater, salinity, Sediment Monitoring, sediments, soils
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LTER Core Area:
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Inorganic Matter
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Research Themes:
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GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Pore-water Chemistry, Plant Ecology |
Study Period:
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08-Oct-2020 to 15-Oct-2020
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Study Sites:
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GCE1 -- Eulonia, Georgia, USA
GCE2 -- Four Mile Island, Georgia, USA
GCE3 -- North Sapelo, Sapelo Island, Georgia, USA
GCE4 -- Meridian, Georgia, USA
GCE5 -- Folly River, Georgia, USA
GCE6 -- Dean Creek, Sapelo Island, Georgia, USA
GCE7 -- Carrs Island, Georgia, USA
GCE8 -- Alligator Creek, Georgia, USA
GCE9 -- Rockdedundy Island, Georgia, USA
GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA
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Project References:
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End of year biomass |
Downloads:
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Data Table: POR-GCEM-2101 (Main data table for data set POR-GCEM-2101, 88 records)
Access: Public (released 09-Aug-2022)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [15.24kb], Text File [12.84kb], MATLAB (GCE Toolbox) [74.85kb], MATLAB (Variables) [83.43kb], Text Report [104.97kb]
Column List:(hide)
Column |
Name |
Units |
Type |
Description |
1 |
Year |
YYYY |
integer |
Calendar year sample was collected |
2 |
Month |
MM |
integer |
Calendar month sample was collected |
3 |
Day |
DD |
integer |
Calendar day sample was collected |
4 |
Site |
none |
integer |
GCE study site code |
5 |
Zone |
none |
integer |
Marsh zone |
6 |
Plot |
none |
integer |
Plot number |
7 |
Location |
none |
string |
Geographic location code in the GCE Metadata Database for the sampling plot |
8 |
Flag_Location |
none |
string |
QA/QC flags for Geographic location code in the GCE Metadata Database for the sampling plot (flagging criteria, where "x" is Location: manual) |
9 |
Location_Notes |
none |
string |
Notes on location assignments and geographic accuracy |
10 |
Longitude |
degrees |
floating-point |
Geographic longitude in decimal degrees |
11 |
Flag_Longitude |
none |
string |
QA/QC flags for Geographic longitude in decimal degrees (flagging criteria, where "x" is Longitude: x<-180="I", x>180="I", manual) |
12 |
Latitude |
degrees |
floating-point |
Geographic latitude in decimal degrees |
13 |
Flag_Latitude |
none |
string |
QA/QC flags for Geographic latitude in decimal degrees (flagging criteria, where "x" is Latitude: x<-90="I", x>90="I", manual) |
14 |
Soil_Cup_Mass |
grams |
floating-point |
Mass of cup |
15 |
Soil_Total_Weight |
grams |
floating-point |
Weight of soil and cup before drying |
16 |
Soil_Dry_Weight |
grams |
floating-point |
Weight of soil and cup after drying |
17 |
Soil_Water_Content |
grams |
floating-point |
Weight of water in soil calculated by subtraction of dry weight from initial weight |
18 |
Soil_Water_Percent |
percent |
floating-point |
Percentage of water in soil calculated from dry weight and initial weight |
19 |
Deionized_Water_Added |
ml |
floating-point |
Amount of deionized water added to the dry soil sample |
20 |
Soil_Salinity_Supernatant |
PSU |
floating-point |
Salinity of soil sample supernatant after resuspension of dried soil in deionized water |
21 |
Soil_Salinity_Porewater |
PSU |
floating-point |
Porewater salinity calculated from soil sample dry weight and salinity of supernatant after resuspension in water |
22 |
Crucible_Weight |
grams |
floating-point |
Weight of empty crucible |
23 |
Flag_Crucible_Weight |
none |
string |
QA/QC flags for Weight of empty crucible (flagging criteria, where "x" is Crucible_Weight: x<0="I", x<1="Q", x>50="Q") |
24 |
Soil_Crucible_Wet_Weight |
grams |
floating-point |
Weight of crucible and dried soil sample before combustion |
25 |
Flag_Soil_Crucible_Wet_Weight |
none |
string |
QA/QC flags for Weight of crucible and dried soil sample before combustion (flagging criteria, where "x" is Soil_Crucible_Wet_Weight: x<0="I", x<7="Q", x>70="Q") |
26 |
Soil_Crucible_Ash_Weight |
grams |
floating-point |
Weight of crucible and sample after combustion (ash free dry weight) |
27 |
Flag_Soil_Crucible_Ash_Weight |
none |
string |
QA/QC flags for Weight of crucible and sample after combustion (ash free dry weight) (flagging criteria, where "x" is Soil_Crucible_Ash_Weight: x<0="I", x<6="Q", x>70="Q") |
28 |
Soil_Organic_Content |
grams |
floating-point |
Mass of organic matter lost on combustion |
29 |
Flag_Soil_Organic_Content |
none |
string |
QA/QC flags for Mass of organic matter lost on combustion (flagging criteria, where "x" is Soil_Organic_Content: x<0="I", x>5="Q") |
30 |
Soil_Organic_Percent |
percent |
floating-point |
Percentage of organic matter in sample calculated from organic content and dry weight of soil |
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Statistics:
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Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS |
Citation:
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Pennings, Steven C. 2021. Soil salinity and organic content at GCE-LTER vegetation monitoring plots in October 2020. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/31527551a4a7096727e15cb7b6cb4de5
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