Data Package Metadata View Summary

LTREB: Aboveground biomass, plant density, annual aboveground productivity, plant heights and snail observations in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1984-2023

General Information

Data Package:

Local Identifier:

edi.135.1

Title:

LTREB: Aboveground biomass, plant density, annual aboveground productivity, plant heights and snail observations in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1984-2023

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Aboveground biomass and plant density were measured non-destructively as a component of a long-term project seeking to understand how salt marsh primary production and sediment chemistry respond to anthropogenic (e.g. eutrophication) and natural (e.g. sea-level rise) environmental change. Feedbacks between plants, sediments, nutrients and flooding were investigated with particular attention to mechanisms that keep marshes in equilibrium with sea level. Biomass was calculated from plant height measurements using allometric equations. Annual productivity was calculated from approximately-monthly biomass estimates. In addition to plant height measurements, observations of snails in sample plots were recorded.

Other data collected as part of the project include marsh surface elevation and porewater nutrient concentrations. These data have been used to develop the Marsh Equilibrium Model, an important tool for coastal resource managers.

Sampling occurred at Spartina alterniflora-dominated salt marsh sites in North Inlet, a relatively pristine estuary near Georgetown, SC on the SE coast of the United States. North Inlet is a tidally-dominated, bar-built estuary, with a semi-diurnal mixed tide and a tidal range of 1.4m. The 25-km2 estuary is comprised of about 20.5 km2 of intertidal salt marsh and mudflats, and 4.5 km2 of open water. Sampling began at one location in 1984, and at three additional locations in 1986. Sampling occurred approximately monthly through 2023. The study is on-going.

There are four sampling locations at two sites. Two locations are in the low marsh; two locations are in the high marsh. One high marsh location had control sampling plots in addition to plots fertilized with nitrogen and phosphorus.

Publication Date:

2024-02-22

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

1984-05-01

End:

2023-12-31

People and Organizations
Contact:	Morris, James (Belle W. Baruch Institute for Marine and Coastal Sciences) [ email ]
Contact:	Sundberg, Karen (Belle W. Baruch Institute for Marine and Coastal Sciences) [ email ]
Creator:	Morris, James (Belle W. Baruch Institute for Marine and Coastal Sciences)
Creator:	Sundberg, Karen (Belle W. Baruch Institute for Marine and Coastal Sciences)
Associate:	Hankinson, Warren
Associate:	Haskin, Betsy
Associate:	Krest, Robin

Data Entities
Data Table Name:	NILTREB_plants_aboveground_biomass_density
Description:	Aboveground biomass and plant density in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC (1985-2023)
Data Table Name:	NILTREB_plants_annual_productivity
Description:	Annual aboveground primary productivity in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC (1985-2023)
Data Table Name:	NILTREB_plants_plantheight
Description:	Plant height data from control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC (1984-2023)
Data Table Name:	NILTREB_plants_snail_observations
Description:	Observations of snail presence on live plants, dead plants, and the marsh surface made while sampling long term control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown SC (2003-2023)

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/135/1/c7eda4a7598e863d24a8901612946a12
Name:	NILTREB_plants_aboveground_biomass_density
Description:	Aboveground biomass and plant density in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC (1985-2023)
Number of Records:	13274
Number of Columns:	8

Table Structure

Object Name:

NILTREB_plants_aboveground_biomass_density.csv

Size:

443429 byte

Authentication:

68ec15f3c12784c8ff157076d3e16ba5 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

SITE

LOCATION

PLOT

SUBPLOT

TREATMENT

DATE

ABOVEGROUND_BIOMASS

PLANT_DENSITY

Column Name:

SITE

LOCATION

PLOT

SUBPLOT

TREATMENT

DATE

ABOVEGROUND_BIOMASS

PLANT_DENSITY

Definition:

Name of sampling station

Location of sampling station within the site

Sample plot identifier

Sample subplot identifier

Experimental treatment applied to the sample location

Date data was collected

Dry weight of live aboveground plant biomass

Density of live plants

Storage Type:

string

float

Measurement Type:

nominal

dateTime

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GI
Definition	Goat_Island
Source

Code Definition

Code	OL
Definition	Oyster_Landing
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	HM
Definition	High_Marsh
Source

Code Definition

Code	LM
Definition	Low_Marsh
Source

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control
Source

Code Definition

Code	NP
Definition	Fertilized
Source

Format	YYYY-MM-DD
Precision

Unit	gramPerMeterSquared
Type	real

Unit	numberPerMeterSquared
Type	integer

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/135/1/a9fc017a4c7ef041ec784c814fff637d
Name:	NILTREB_plants_annual_productivity
Description:	Annual aboveground primary productivity in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC (1985-2023)
Number of Records:	190
Number of Columns:	6

Table Structure

Object Name:

NILTREB_plants_annual_productivity.csv

Size:

5128 byte

Authentication:

a5142cad6b243e10f0d79e80212e4c02 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

SITE

LOCATION

YEAR

TREATMENT

PRODUCTIVITY

STDERR

Column Name:

SITE

LOCATION

YEAR

TREATMENT

PRODUCTIVITY

STDERR

Definition:

Name of sampling station

Location of sampling station within the site

Year

Experimental treatment applied to the sample location

Mean Annual Aboveground Plant Productivity

Standard Error of Mean Annual Aboveground Plant Productivity

Storage Type:

string

float

Measurement Type:

nominal

dateTime

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GI
Definition	Goat_Island
Source

Code Definition

Code	OL
Definition	Oyster_Landing
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	HM
Definition	High_Marsh
Source

Code Definition

Code	LM
Definition	Low_Marsh
Source

Format	YYYY
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control
Source

Code Definition

Code	NP
Definition	Fertilized
Source

Unit	gramPerMeterSquaredPerYear
Type	real

Unit	dimensionless
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/135/1/d9dff1a8b89183d58d8dd2efa3007214
Name:	NILTREB_plants_plantheight
Description:	Plant height data from control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC (1984-2023)
Number of Records:	150680
Number of Columns:	10

Table Structure

Object Name:

NILTREB_plants_plantheight.csv

Size:

8186978 byte

Authentication:

1975814ddbeb14ddd78e413a6eedba35 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

DB_PLANT_ID

PLANT_ID

SITE

LOCATION

PLOT

SUBPLOT

TREATMENT

DATE

PLANT_HEIGHT

HEIGHT_flag

Column Name:

DB_PLANT_ID

PLANT_ID

SITE

LOCATION

PLOT

SUBPLOT

TREATMENT

DATE

PLANT_HEIGHT

HEIGHT_flag

Definition:

Unique identifier for each plant in the dataset

Unique identifier for each plant in the subplot

Name of sampling station

Location of sampling station within the site

Sample plot identifier

Sample subplot identifier

Experimental treatment applied to the sample location

Date the plant was measured

Plant height

Data flag for PLANT_HEIGHT

Storage Type:

string

float

Measurement Type:

nominal

dateTime

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GI
Definition	Goat_Island
Source

Code Definition

Code	OL
Definition	Oyster_Landing
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	HM
Definition	High_Marsh
Source

Code Definition

Code	LM
Definition	Low_Marsh
Source

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control
Source

Code Definition

Code	NP
Definition	Fertilized
Source

Format	YYYY-MM-DD
Precision

Unit	centimeter
Type	integer

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	fl
Definition	flowering_plant
Source

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/135/1/718378e72682d8fc30ec409c8e54f483
Name:	NILTREB_plants_snail_observations
Description:	Observations of snail presence on live plants, dead plants, and the marsh surface made while sampling long term control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown SC (2003-2023)
Number of Records:	1763
Number of Columns:	12

Table Structure

Object Name:

NILTREB_plants_snail_observations.csv

Size:

93115 byte

Authentication:

dde735b0c114e03d60f0b10cdabc539d Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

DATE

SITE

LOCATION

PLOT

SUBPLOT

TREATMENT

SNAIL_LOCATION

PLANT_ID

Column Name:

DATE

SITE

LOCATION

PLOT

SUBPLOT

TREATMENT

SNAIL_LOCATION

PLANT_ID

LITTORARIA_ON_PLANT

MELAMPUS_ON_PLANT

LITTORARIA_ON_GROUND

MELAMPUS_ON_GROUND

Definition:

Date the snail was observed

Name of sampling station

Location of sampling station within the site

Sample plot identifier

Sample subplot identifier

Experimental treatment applied to the sample location

Location of the snail within the subplot

Unique identifier for each plant in the subplot

Number of snails (Littoraria sp.) observed on the plant

Number of snails (Melampus sp.) observed on the plant

Number of snails (Littoraria sp.) observed on the marsh surface within the plot

Number of snails (Melampus sp.) observed on the marsh surface within the plot

Storage Type:

string

float

Measurement Type:

dateTime

nominal

ratio

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GI
Definition	Goat_Island
Source

Code Definition

Code	OL
Definition	Oyster_Landing
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	HM
Definition	High_Marsh
Source

Code Definition

Code	LM
Definition	Low_Marsh
Source

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control
Source

Code Definition

Code	NP
Definition	Fertilized
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	Snail located on dead plant
Source

Code Definition

Code	1
Definition	Snail located on live plant
Source

Code Definition

Code	7
Definition	Snail located on the marsh surface
Source

Definition

text

Unit	number
Type	whole

Unit	number
Type	whole

Unit	number
Type	whole

Unit	number
Type	whole

Missing Value Code:

Code	NA
Expl	Snail is not located on a plant

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This data package is released to the "public domain" under Creative Commons CC0 1.0 "No Rights Reserved" (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared in whole or by individual components. A generic citation is provided for this data package on the website https://portal.edirepository.org (herein "website") in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. This data package (and its components) is made available "as is" and with no warranty of accuracy or fitness for use. The creators of this data package and the website shall not be liable for any damages resulting from misinterpretation or misuse of the data package or its components. Periodic updates of this data package may be available from the website. Thank you.

Keywords

By Thesaurus:
(No thesaurus)	LTREB, North Inlet, South Carolina, Southeast United States, Spartina alterniflora, aboveground plant biomass, plant density, macrophyte
LTER Controlled Vocabulary	fertilization, estuaries, salt marshes, primary production

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

Sampling Description:

A non-destructive plant census is conducted approximately monthly. Duplicate sampling quadrats (10cmx10cm, 10cmx20cm or 15cmx30cm) are permanently installed within triplicate fertilized (30 mol N/m2/y and 15 mol P/m2/y) or control m2-plots. Fertilized plots are ammended each month by burying an aliquot of the appropriate amount of fertilizer in several spots within each plot. Plants within each sampling quadrat are tagged with bird ID bands, and plant heights are measured approximately monthly. Each plant is given a unique ID number. Plant heights are read into a digital recorder. The presence of inflorescenes is noted, but the inflorescence is not included in the plant height. Descriptions of the locations of the plants within the quadrat are also recorded (e.g. northwest corner or northwest of tag #xxxx). Plant measurements are always taken with the observer on the same side of the quadrat. This method allows one to follow the growth of individual plants over time. The presence of snails on plants or on the marsh surface is also noted.

Numerical Processing:

Plant height measurements are entered into an ACCESS database, and subsequently transformed to individual plant biomass estimates using allometric equations (Morris and Haskin, 1990. Ecology 71(6):2209-2217) and Fortran programs. Plant density is determined from the number of plants measured in each subplot. Annual productivity is determined using the Smalley method and SAS (SAS Institute, Inc; Cary, NC). Biomass data are reported as gdw/m2; density data are reported as number/m2 for each subplot. Productivity data are reported as the mean annual aboveground plant productivity and standard error of the 3 plots at each location/treatment.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@edirepository.org

Web Address:

https://edirepository.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Dr. James Morris

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

University of South Carolina,

Columbia, SC United States

Email Address:

jtmorris@baruch.sc.edu

Id:

https://orcid.org/0000-0002-0511-642X

Individual:

Karen Sundberg

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

PO Box 1630,

Georgetown, SC 29442 United States

Email Address:

sundberg@mailbox.sc.edu

Id:

https://orcid.org/0000-0001-5871-6376

Contacts:

Individual:

Dr. James Morris

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

University of South Carolina,

Columbia, SC United States

Email Address:

jtmorris@baruch.sc.edu

Id:

https://orcid.org/0000-0002-0511-642X

Individual:

Karen Sundberg

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

PO Box 1630,

Georgetown, SC 29442 United States

Email Address:

sundberg@mailbox.sc.edu

Id:

https://orcid.org/0000-0001-5871-6376

Associated Parties:

Individual:	Warren Hankinson
Role:	Research Assistant

Individual:	Betsy Haskin
Role:	Research Assistant

Individual:	Robin Krest
Role:	Research Assistant

Metadata Providers:

Individual:

Karen Sundberg

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

PO Box 1630,

Georgetown, SC 29442 United States

Email Address:

sundberg@mailbox.sc.edu

Id:

https://orcid.org/0000-0001-5871-6376

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

1984-05-01

End:

2023-12-31

Geographic Region:

Description:

North Inlet, Georgetown, SC

Bounding Coordinates:

Northern:	33.35	Southern:	33.32
Western:	-79.2	Eastern:	-79.18

Geographic Region:

Description:

North Inlet, Georgetown, SC

Bounding Coordinates:

Northern:	33.35	Southern:	33.32
Western:	-79.2	Eastern:	-79.18

Project

Parent Project Information:

Title:

LTREB: Long Term Studies of Salt Marsh Primary Production

Personnel:

Individual:

Dr. James Morris

Organization:

Belle W. Baruch Institute for Marine and Coastal Sciences

Address:

University of South Carolina,

Columbia, SC United States

Email Address:

morris@inlet.geol.sc.edu

Id:

https://orcid.org/0000-0002-0511-642X

Role:

Principle Investigator

Additional Award Information:

Funder:	National Science Foundation
Number:	1654853
Title:	LTREB Renewal: Long Term Studies of Salt Marsh Primary Production

Maintenance

Maintenance:

Description:	Data collection is approximately monthly. Dataset maintenance is on-going.
Frequency:	annually

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2024.02.07'
        |     |___text '\n      '
        |___text '\n   '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. 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. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

LTREB: Aboveground biomass, plant density, annual aboveground productivity, plant heights and snail observations in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1984-2023

Data Entities

Data Table

Data Table

Data Table

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

LTREB: Aboveground biomass, plant density, annual aboveground productivity, plant heights and snail observations in control and fertilized plots in a Spartina alterniflora-dominated salt marsh, North Inlet, Georgetown, SC: 1984-2023

+/- Data Entities

Data Table

Data Table

Data Table

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata