Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

POR-GCEM-2101

Research Theme:

Pore-water Chemistry (Monitoring)

Contributors:

Steven C. Pennings, Alyssa Peterson, Dontrece Smith, Jacob Shalack

Title:

Soil salinity and organic content at GCE-LTER vegetation monitoring plots in October 2020

Abstract:

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.

DOI:

10.6073/pasta/31527551a4a7096727e15cb7b6cb4de5

Key Words:

chemistry, marshes, mud, permanent plots, porewater, salinity, Sediment Monitoring, sediments, soils

LTER Core Area:

Inorganic Matter

Research Themes:

GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Pore-water Chemistry, Plant Ecology

Study Period:

08-Oct-2020 to 15-Oct-2020

Study Sites:

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

» Download Geographic Coverage: Google Earth

Project References:

End of year biomass

Downloads:

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

Statistics:

Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS

Citation:

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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