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GCE-LTER Data Set Summary

Accession: PLT-GCES-1609c Research Theme: Population Ecology (Synthesis)
Contributors: Steven C. Pennings, Adam Sapp
Title: Long-term Plant Biomass Monitoring Data from Altamaha River Plant Transition Sites near the Georgia Coastal Ecosystems LTER Project on Sapelo Island, Georgia
Abstract: The Georgia Coastal Ecosystems LTER program (GCE) monitors plant biomass annually to measure the species and size distribution of plants at 3 sampling sites on the creekbank of the Altamaha River. The sites were chosen to capture the transition from Spartina alterniflora to Spartina cynosuroides (site SCSA) and the transition from Spartina cynosuroides to Zizaniopsis miliacea (sites ZSC1 and ZSC2). The quadrats were established as permanent plots in October 2012 by placing PVC stakes along the creekbank at each site. Plots were evenly spaced, but were not randomly located because the goal was to start with mixtures of vegetation in most of the plots, and vegetation was distributed in patches along the creekbanks. Therefore, these plots provide useful measures of vegetation change, but are not a random sample of the vegetation at the site. Plots will be replaced each year as necessary to replace any lost to disturbance. The plots were visually surveyed and the species, shoot height, and flowering status was recorded individually for each shoot over 10 cm in height present in each plot. Observations from plots exhibiting signs of disturbance were noted in a separate data set (PLT-GCEM-1801c). This data set includes cumulative long-term observations of plant stem count, height and biomass per plot and species at 3 Altamaha River transition sites from 2012 to 2019, and will be updated annually to include the prior year observations.
DOI: 10.6073/pasta/96e8d1e7e44756ee9b4b530ef9462acb
Key Words: aboveground biomass, biomass, flowering, marshes, monitoring, permanent plots, plant biomass, plant communities, plant cover, plant ecology, plant growth, Plant Monitoring, shoot height
LTER Core Area: Population Studies
Research Themes: GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Population Ecology
Study Period: 12-Oct-2012 to 23-Oct-2019
Study Sites:
SCSA -- SCSA Altamaha Plant Transition Site, Georgia, USA
ZSC1 -- ZSC1 Altamaha Plant Transition Site, Georgia, USA
ZSC2 -- ZSC2 Altamaha Plant Transition Site, Georgia, USA
» Download Geographic Coverage: Google Earth
Species References: Cladium jamaicense, Juncus effusus, Juncus roemerianus, Panicum spp, Schistocerca obscura, Scirpus americanus, Scirpus olneyi, Scirpus robustus, Scirpus validus, Spartina alterniflora, Spartina cynosuroides, Typha angustifolia, Zizaniopsis miliacea
Data References: PLT-GCEM-1210 (2012 plant biomass data set), PLT-GCEM-1312 (2013 plant biomass data set), PLT-GCEM-1412c (2014 plant biomass data set), PLT-GCEM-1511c (2015 plant biomass data set), PLT-GCEM-1611c (2016 plant biomass data set), PLT-GCEM-1711c (2017 plant biomass data set), PLT-GCEM-1811c (2018 plant biomass data set), PLT-GCEM-1911c (2019 plant biomass data set)
Project References: End of year biomass, GCE-LTER Altamaha River plant community monitoring
Downloads: Information

Data Table: PLT-GCES-1609c_Biomass_Stats (Statistical analysis of plant biomass per plot across all species, 864 records)

Access: Public (released 12-May-2021)

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

Data Formats: Spreadsheet (CSV) [50.95kb],  Text File [55.22kb],  MATLAB (GCE Toolbox) [40.45kb],  MATLAB (Variables) [49.37kb],  Text Report [103.03kb]

Column List:(display)


Data Table: PLT-GCES-1609c_Observations (Complete plot-level data set containing all observations from October 2012 to October 2019, 1820 records)

Access: Public (released 12-May-2021)

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

Data Formats: Spreadsheet (CSV) [132.46kb],  Text File [119.06kb],  MATLAB (GCE Toolbox) [53.61kb],  MATLAB (Variables) [46.83kb],  Text Report [165.18kb]

Column List:(display)


Data Table: PLT-GCES-1609c_Shoots_Flowering (Statistical analysis of shoot height and flowering status by plot and species, 920 records)

Access: Public (released 12-May-2021)

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

Data Formats: Spreadsheet (CSV) [46.43kb],  Text File [45.30kb],  MATLAB (GCE Toolbox) [32.35kb],  MATLAB (Variables) [39.76kb],  Text Report [91.75kb]

Column List:(display)

Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Pennings, Steven C. 2021. Long-term Plant Biomass Monitoring Data from Altamaha River Plant Transition Sites near the Georgia Coastal Ecosystems LTER Project on Sapelo Island, Georgia. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/96e8d1e7e44756ee9b4b530ef9462acb

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LTER
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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.