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GCE-LTER Data Set Summary

Accession: PLT-GCEM-2111b Research Theme: Population Ecology (Monitoring)
Contributors: Steven C. Pennings, Adam Sapp, Wade Sheldon
Title: Fall 2021 plant monitoring survey -- biomass calculated from shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10
Abstract: The biomass of plants surveyed in permanent plots at 10 GCE LTER sampling sites in October 2021 was estimated based on allometric relationships between biomass and shoot height and flowering status derived for each site, zone, and species in October 2002 and October 2008. Biomass was calculated for dominant species, including Spartina alterniflora, S. cynosuroides, Juncus roemerianus, and Zizaniopsis miliacea, as well as rarer species including Scirpus spp, Panicum spp. And Typha angustifolia. This data set is based on GCE plant monitoring survey data set PLT-GCEM-2111a, and allometric relationships were based on GCE data sets PLT-GCEM-0211b, PLT-GCEM-0711, and PLT-GCEM-2011.
DOI: 10.6073/pasta/a7ceb2cf93d4a3387226e7723256bcfa
Key Words: biomass, flowering, marshes, monitoring, permanent plots, plant communities, plant cover, plant ecology, plant growth, Plant Monitoring, plants, primary productivity, shoot height
LTER Core Area: Primary Production
Research Themes: GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Population Ecology, Botany
Study Period: 14-Oct-2021 to 19-Oct-2021
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
Species References: Cladium jamaicense, Juncus effusus, Juncus roemerianus, Panicum spp, Scirpus americanus, Scirpus olneyi, Scirpus robustus, Scirpus validus, Spartina alterniflora, Spartina cynosuroides, Typha angustifolia, Zizaniopsis miliacea
Data References: PLT-GCEM-0211b (Allometry data set containing biomass/height relationship parameters per species), PLT-GCEM-0711 (Allometry data set containing biomass/height relationship parameters per species), PLT-GCEM-2011 (Allometry data set containing biomass/height relationship parameters per species), PLT-GCEM-2111a (Shoot height and flowering data set used for biomass calculation)
Project References: End of year biomass
Downloads: Information

Data Table: PLT-GCEM-2111b (Main data table for data set PLT-GCEM-2111b, 3037 records)

Access: Public (released 20-Jan-2023)

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

Data Formats: Spreadsheet (CSV) [366.04kb],  Text File [326.61kb],  MATLAB (GCE Toolbox) [114.59kb],  MATLAB (Variables) [120.08kb],  Text Report [456.54kb]

Column List:(hide)

Column Name Units Type Description
1 Year YYYY integer Year of observation
2 Month M integer Month of observation
3 Day D integer Day of observation
4 Site none integer GCE LTER sampling site number
5 Site_Name none string GCE LTER sampling site name
6 Zone none integer Nominal marsh zone
7 Plot none integer Permanent plot number
8 Location none string Geographic location code in the GCE Metadata Database for the sampling plot
9 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)
10 Location_Notes none string Notes on location assignments and geographic accuracy
11 Longitude degrees floating-point Geographic longitude in decimal degrees
12 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)
13 Latitude degrees floating-point Geographic latitude in decimal degrees
14 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)
15 Quadrat_Area m^2 floating-point Areal measurement of the quadrat frame
16 Species_Code none string Plant species code
17 Shoot_Height cm floating-point Height of the plant shoot above the substrate
18 Flowering_Status none integer Presence or absence of inflorescence
19 Plant_Biomass g floating-point Plant biomass calculated from shoot height and flowering status, based on curve fits of allometric data collected for each site, marsh zone and species
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Pennings, Steven C. 2022. Fall 2021 plant monitoring survey -- biomass calculated from shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/a7ceb2cf93d4a3387226e7723256bcfa

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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.