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GCE-LTER Data Set Summary

Accession: PLT-GCEM-1112b Research Theme: Plant Ecology (Monitoring)
Contributors: Steven C. Pennings, Wade Sheldon
Title: Fall 2011 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 2011 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 only 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-1112a, and allometric relationships were based on GCE data sets PLT-GCEM-0211b, PLT-GCEM-0711, and PLT-GCEM-2011.
DOI: 10.6073/pasta/708b6239f0806a1bb1a2176ede1051d9
Key Words: aboveground biomass, biomass, flowering, marshes, monitoring, Panicum, permanent plots, plant biomass, plant communities, plant cover, plant ecology, plant growth, Plant Monitoring, plants, primary productivity, Scirpus, shoot height, Typha
LTER Core Area: Primary Production
Research Themes: GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Plant Ecology, Botany
Study Period: 24-Oct-2011 to 27-Oct-2011
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 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-1112a (Shoot height and flowering status data used for biomass calculation), PLT-GCEM-2011 (Allometry data set containing biomass/height relationship parameters per species)
Project References: End of year biomass
Publications:

Liu, W. and Pennings, S.C. Presentation: Allometric variation of the salt marsh grass Spartina alterniflora across space and time. 103rd Annual meeting of the Ecological Society of America, August 5-10, 2018, New Orleans.

Pennings, S.C. Presentation: Effects of Hurricanes Matthew and Irma on coastal wetlands in Georgia. 103rd Annual meeting of the Ecological Society of America, August 5-10, 2018, New Orleans.

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)

Liu, W. and Pennings, S.C. 2021. Variation in synchrony of production among species, sites and intertidal zones in coastal marshes. Ecology. (DOI: 10.1002/ECY.3278)

Downloads: Information

Data Table: PLT-GCEM-1112b (Main data table for data set PLT-GCEM-1112b, 2923 records)

Access: Public (released 13-Dec-2012)

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

Data Formats: Spreadsheet (CSV) [310.35kb],  Text File [259.73kb],  MATLAB (GCE Toolbox) [111.23kb],  MATLAB (Variables) [109.07kb],  Text Report [398.34kb]

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 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 Species_Code none string Plant species code
16 Flag_Species_Code none string QA/QC flags for Plant species code (flagging criteria, where "x" is Species_Code: flag_notinlist(x, "A1, A2, A3, A4, A5, A6, A7, A8, A9, A13")="Q", manual)
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 Flag_Flowering_Status none string QA/QC flags for Presence or absence of inflorescence (flagging criteria, where "x" is Flowering_Status: x<0="I", x>1="I", manual, strcmp(Species_Code, "A3") & ~isnull(Flowering_Status)="Q", inlist(Species_Code, "A1, A2") & ~isnull(Shoot_Height) & isnull(Flowering_Status)="Q")
20 Plot_Disturbance none integer Presence or absence of visible plot disturbance
21 Flag_Plot_Disturbance none string QA/QC flags for Presence or absence of visible plot disturbance (flagging criteria, where "x" is Plot_Disturbance: x<0="I", x>1="I", manual)
22 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. 2011. Fall 2011 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/708b6239f0806a1bb1a2176ede1051d9

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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.