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GCE-LTER Data Set Summary

Accession: PLT-GCEM-1004a GCE Research Theme: Plant Ecology (Monitoring)
Contributors: Steven C. Pennings, Kazik Wieski, Hongyu Guo, Jacob Shalack, Nick Scoville, Kristen Anstead
Title: Fall 2009 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10
Abstract: A quadrat survey was conducted in October 2009 to measure the species and size distribution of plants at 10 GCE LTER sampling sites. The quadrats were established as permanent plots at GCE sampling sites in October 2000 by placing wooden stakes at random locations across two nominal zones at each site, designated based on marsh structure (creekbank and high marsh). Several new plots were also added in October 2001, 2002, 2003 and 2004 to replace those lost due to catastrophic wrack disturbance or creek bank erosion. 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 the 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.
DOI: 10.6073/pasta/f036c40aa76bf072eca3e0a361dcec3a
Key Words: flowering, Juncus roemerianus, marshes, monitoring, Panicum, permanent plots, plant communities, plant cover, plant ecology, Plant Monitoring, plants, primary productivity, Schoenoplectus tabernaemontani, Scirpus, shoot height, Spartina alterniflora, Spartina cynosuroides, Typha, Zizaniopsis miliacea
LTER Core Area: Primary Production
GCE Themes: Q2 - Domain Patterns, Plant Ecology, Botany
Study Period: 14-Oct-2009 to 17-Oct-2009
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, ESRI Shapefile (polygons, points)
Species References: Juncus roemerianus, Panicum spp, Schoenoplectus tabernaemontani, Scirpus americanus, Scirpus olneyi, Scirpus robustus, Scirpus validus, Spartina alterniflora, Spartina cynosuroides, Typha angustifolia, Zizaniopsis miliacea
Data References: PLT-GCEM-1004b
Project References: End of year biomass, Plant community assemblages
Downloads: Information

Data Table: PLT-GCEM-1004a (Main data table for data set PLT-GCEM-1004a, 4353 records)

Access: Public (released 18-Oct-2011)

Metadata: Text (ESA FLED), Basic EML, Complete EML

Data Files: Spreadsheet (CSV) [394.64kb],  Text File [328.58kb],  Text Report [535.06kb],  MATLAB (GCE Toolbox) [1960.13kb],  MATLAB (Variables) [1591.03kb]

Column List:

Column Name Units Type Description (show)
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
5 Zone none integer Nominal marsh zone
6 Plot none integer Permanent 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 Quadrat_Area m^2 floating-point Areal measurement of the quadrat frame
15 Flag_Quadrat_Area none string QA/QC flags for Areal measurement of the quadrat frame (flagging criteria, where "x" is Quadrat_Area: x<0.06="Q", x>0.5="Q")
16 Species_Code none string Plant species code
17 Shoot_Height cm floating-point Height of the plant shoot above the substrate
18 Flag_Shoot_Height none string QA/QC flags for Height of the plant shoot above the substrate (flagging criteria, where "x" is Shoot_Height: x<0="I", x>400="Q")
19 Flowering_Status none integer Presence or absence of inflorescence
20 Plot_Disturbance none integer Presence or absence of visible plot disturbance
Citation: Pennings, Steven C. (2010): Fall 2009 plant monitoring survey -- 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/f036c40aa76bf072eca3e0a361dcec3a)

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959 and OCE-1237140. 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.