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GCE-LTER Data Set Summary
Accession:
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PLT-GCEM-1004b
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Research Theme:
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Plant Ecology (Monitoring)
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Contributors:
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Steven C. Pennings, Wade Sheldon
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Title:
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Fall 2009 plant monitoring survey -- biomass calculated from shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10
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Abstract:
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The biomass of plants surveyed in permanent plots at 10 GCE LTER sampling sites in October 2009 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-1004a, and allometric relationships were based on GCE data sets PLT-GCEM-0211b, PLT-GCEM-0711, and PLT-GCEM-2011.
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DOI:
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10.6073/pasta/cc24760c2e99690db06e12a6050652a5
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Key Words:
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biomass, flowering, marshes, monitoring, Panicum, permanent plots, plant communities, plant cover, plant ecology, Plant Monitoring, plants, primary productivity, Scirpus, shoot height, Typha
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LTER Core Area:
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Primary Production
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Research Themes:
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GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Plant Ecology, Botany |
Study Period:
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14-Oct-2009 to 17-Oct-2009
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Study Sites:
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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
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Species References:
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Juncus roemerianus,
Panicum spp,
Scirpus americanus,
Scirpus olneyi,
Scirpus robustus,
Scirpus validus,
Spartina alterniflora,
Spartina cynosuroides,
Typha angustifolia,
Zizaniopsis miliacea |
Data References:
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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-1004a (Primary species diversity data set used for biomass calculations),
PLT-GCEM-2011 (Allometry data set containing biomass/height relationship parameters per species)
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Project References:
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End of year biomass, Plant community assemblages |
Publications:
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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)
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Downloads:
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Data Table: PLT-GCEM-1004b (Main data table for data set PLT-GCEM-1004b, 4353 records)
Access: Public (released 17-Oct-2011)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [421.07kb], Text File [355.00kb], MATLAB (GCE Toolbox) [106.21kb], MATLAB (Variables) [107.09kb], Text Report [469.05kb]
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 |
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", manual) |
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 |
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", 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 |
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. 2010. Fall 2009 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/cc24760c2e99690db06e12a6050652a5
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