Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

PLT-GCED-2404a

Research Theme:

Plant Ecology (Directed Study)

Contributor:

Christopher B. Craft

Title:

Photosynthetic available radiation (PAR) measurements from the GCE-LTER Seawater Addition Long-Term Experiment (SALTEx) Project

Abstract:

SALTEx (Seawater Addition Long-Term Experiment) is a field experiment designed to simulate saltwater intrusion in a tidal freshwater wetland to predict how chronic (Press) and acute (Pulse) salinization will affect this and other tidal freshwater ecosystems. The SALTEx experiment was initiated in 2012 and consists of 31 field plots, each 2.5 m on a side. There are three treatments (Press, Pulse, and Fresh) and two types of controls (with and without sides), each consisting of six replicates. The Press treatment plots receive regular (4 times each week) additions of a mixture of seawater and fresh river water. Pulse plots receive the same mixture of seawater and river water during September and October, which is historically a time of low flow in the river when natural saltwater intrusion occurs. The Fresh treatment plots receive regular additions of fresh river water. Treatment water is added during low tide to facilitate its infiltration into the soil, and all plots are inundated by astronomical tides at high tide. Light availability was measured using photosynthetically active radiation (PAR) both above and below the plant canopy.

DOI:

10.6073/pasta/1e78ffbb1d1419fcc50cb1892f3c3191

Key Words:

irradiance, percent cover, plants, press, pulse, salinity, SALTEx

LTER Core Area:

Other Site Research

Research Themes:

Plant Ecology

Study Period:

26-Mar-2014 to 01-Aug-2022

Study Sites:

SALTEx -- SALTEx Research Site, Champney Island, Georgia, USA

» Download Geographic Coverage: Google Earth

Downloads:

Data Table: PLT-GCED-2404a (Main data table for data set PLT-GCED-2404a, 369 records)

Access: Public (released 26-Jul-2024)

Metadata: Text (ESA FLED), XML (Ecological Metadata Language)

Data Formats: Spreadsheet (CSV) [20.73kb], Text File [19.57kb], MATLAB (GCE Toolbox) [24.70kb], MATLAB (Variables) [24.88kb], Text Report [33.00kb]

Column List:(hide)

Column	Name	Units	Type	Description
1	Year	YYYY	integer	Year measurement was taken
2	Month	MM	integer	Month measurement was taken
3	Treatment	none	string	Sample treatment
4	Replicate	none	integer	Replicate of the treatment plot
5	PAR_above	umol/m^2/s	floating-point	Photosynthetically active radiation measured above the canopy
6	PAR_below	umol/m^2/s	floating-point	Photosynthetically active radiation measured below the canopy
7	Light_penetration	%	floating-point	Percentatge of light that penetrated the canopy
8	Light_lost	%	floating-point	Percentage of light lost to canopy

Statistics:

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

Citation:

Craft, Christopher B. 2024. Photosynthetic available radiation (PAR) measurements from the GCE-LTER Seawater Addition Long-Term Experiment (SALTEx) Project. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/1e78ffbb1d1419fcc50cb1892f3c3191

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