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GCE-LTER Data Set Summary

Accession: PLT-GCEM-0211b Research Theme: Plant Ecology (Monitoring)
Contributors: Steven C. Pennings, Cristiano Salgado, Caroline McFarlin, Ken Helm
Title: Plant allometry at GCE sampling sites 1-10 in October, 2002
Abstract: The relationship between height and mass (allometry) was measured for plants collected from Georgia Coastal Ecosystems sampling sites 1-10 in October 2002. Shoots or leaves (Juncus) were collected adjacent to permanent plots in each marsh zone by clipping at the soil surface. Dead leaves were removed from shoots. Height, flowering status (Spartina species only), number of leaves (Spartina species and Zizaniopsis), and dry mass were measured for each plant. The allometric relationships determined in this study will allow annual GCE plant monitoring data to be converted from height to mass. This study may be repeated in the future to examine temporal trends in relation to environmental changes.
DOI: 10.6073/pasta/e5e854be6597aa4335a2058ffece7fe8
Key Words: allometry, height, Juncus, leaves, marshes, mass, permanent plots, plant biomass, plant communities, plant cover, plants, primary productivity, shoot height, Spartina, Zizaniopsis
LTER Core Area: Primary Production
Research Themes: Plant Ecology
Study Period: 14-Oct-2002 to 20-Oct-2002
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: Juncus roemerianus, Spartina alterniflora, Spartina cynosuroides, Zizaniopsis miliacea
Data References: PLT-GCEM-0711 (Allometry data set containing biomass/height relationship parameters per species)

Wieski, K. and Pennings, S.C. 2014. Climate Drivers of Spartina alterniflora Saltmarsh Production in Georgia, USA. Ecosystems. 17(3):473-484. (DOI: 10.1007/s10021-013-9732-6)

Li, S. and Pennings, S.C. 2016. Disturbance in Georgia salt marshes: variation across space and time. Ecosphere. 7(10):e01487. (DOI: 10.1002/ecs2.1487)

Liu, W. and Pennings, S.C. 2019. Self-thinning and size-dependent flowering of the grass Spartina alterniflora across space and time. Functional Ecology. 33:1830-1841. (DOI: 10.1111/1365-2435.13384)

Downloads: Information

Data Table: PLT-GCEM-0211b (Main data table for data set PLT-GCEM-0211b, 967 records)

Access: Public (released 11-Nov-2003)

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

Data Formats: Spreadsheet (CSV) [31.42kb],  Text File [29.88kb],  MATLAB (GCE Toolbox) [236.40kb],  MATLAB (Variables) [204.82kb],  Text Report [61.61kb]

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
5 Zone none integer Nominal marsh zone
6 Species_Code none string Plant species code
7 Shoot_Height cm floating-point Height of the plant shoot above the substrate
8 Flowering_Status none integer Presence or absence of inflorescence
9 Leaf_Count count integer Number of green leaves present on the plant at the time of collection
10 Plant_Mass g floating-point Dry mass of the living plant material
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Pennings, Steven C. 2002. Plant allometry at GCE sampling sites 1-10 in October, 2002. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/e5e854be6597aa4335a2058ffece7fe8

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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.