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GCE-LTER Data Set Summary
Accession:
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PLT-GCEM-2111c
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Research Theme:
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Population Ecology (Monitoring)
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Contributor:
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Steven C. Pennings
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Title:
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GCE-LTER Altamaha River Plant Community Monitoring Survey in October 2021
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Abstract:
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A quadrat survey was conducted in October 2021 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. This survey will be repeated annually to assess changes in plant distribution and biomass in relation to environmental changes documented by other GCE LTER monitoring efforts.
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DOI:
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10.6073/pasta/af1fbafea846b0c3c3b775b9836fca3c
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Key Words:
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aboveground biomass, biomass, flowering, marshes, monitoring, permanent plots, plant biomass, plant communities, plant cover, plant ecology, plant growth, Plant Monitoring, shoot height
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LTER Core Area:
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Population Studies
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Research Themes:
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GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Population Ecology |
Study Period:
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14-Oct-2021 to 19-Oct-2021
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Study Sites:
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SCSA -- SCSA Altamaha Plant Transition Site, Georgia, USA
ZSC1 -- ZSC1 Altamaha Plant Transition Site, Georgia, USA
ZSC2 -- ZSC2 Altamaha Plant Transition Site, Georgia, USA
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Species References:
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Cladium jamaicense,
Juncus roemerianus,
Panicum spp,
Schistocerca obscura,
Scirpus americanus,
Scirpus olneyi,
Scirpus robustus,
Scirpus validus,
Spartina alterniflora,
Spartina cynosuroides,
Typha angustifolia,
Zizaniopsis miliacea |
Project References:
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End of year biomass, GCE-LTER Altamaha River plant community monitoring |
Downloads:
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Data Table: PLT-GCEM-2111c (Main data table for data set PLT-GCEM-2111c, 167 records)
Access: Public (released 20-Jan-2023)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [8.38kb], Text File [7.46kb], MATLAB (GCE Toolbox) [24.89kb], MATLAB (Variables) [31.89kb], Text Report [41.73kb]
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 |
string |
GCE LTER sampling site |
5 |
Zone |
none |
integer |
Nominal marsh zone |
6 |
Plot |
none |
integer |
Permanent plot number |
7 |
Quadrat_Area |
m^2 |
floating-point |
Areal measurement of the quadrat frame |
8 |
Species_Code |
none |
string |
Plant species code |
9 |
Shoot_Height |
cm |
floating-point |
Height of the plant shoot above the substrate |
10 |
Flowering_Status |
none |
integer |
Presence or absence of inflorescence |
11 |
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 |
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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. 2022. GCE-LTER Altamaha River Plant Community Monitoring Survey in October 2021. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/af1fbafea846b0c3c3b775b9836fca3c
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