Marsh Fertilization - Plot Level

Annual primary productivity in control plots at a Spartina alterniflora-dominated salt marsh at Goat Island, North Inlet, Georgetown, SC.

Abstract: 

Annual productivity is determined from aboveground biomass data at permanent, high marsh, control plots in a Spartina alterniflora-dominated salt marsh in North Inlet, Georgetown, SC.

Core Areas: 

Data set ID: 

132

Keywords: 

Short name: 

LTE-MP-NAC-productivitymeans

Purpose: 

 

Data sources: 

LTE-MP-NAC-productivitymeans_csv
LTE-MP-NAC-productivitymeans_xls

Methods: 

General:
This data set is part of an on-going  project in a Spartina alterniflora-dominated marsh at the Baruch Marine Field Laboratory in North Inlet, Georgetown, SC.

Sampling Description:
The biomass-estimation method is non-destructive.  Two permanent subplots were established in each of 3 control plots along a boardwalk.  Each subplot is 10cmx10cm.  Several plants in the subplots are tagged with bird ID bands.  Approximately monthly,  heights of the tagged plants and associated culms are measured to the nearest cm.  Plant heights are read into a digital recorder.  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 for ease in tracking  individual plants throughout the growing season.  The plant census began in May 1984.  The first complete year  of biomass data for annual productivity estimates is 1985.

Data processing:
Plant data are entered first into an EXCEL spreadsheet, and eventually transferred to an ACCESS data base.  Outputs from ACCESS are processed with two FORTRAN programs.  The FORTRAN programs use algorithms to convert the ACCESS data outputs to plant weight, density, births, deaths and growth (Morris and Haskin, 1990).  Fortran outputs are entered into SAS programs to calculate productivity. 

References:
(Morris and Haskin, 1990. Ecology 71(6):2209-2217)
(SAS System for Windows; release 8.02; SAS Institute, Inc; Cary, NC)

Elevation:
LTE-MP-NIN-GIHM, ~ 0.5 meters NAVD88

 

Maintenance: 

Collections occur approximately every month.
Database is updated seasonally.
Study and data collection are ongoing as of Jan 2018.
Version 01; new data and metadata
Version 02; new data and metadata
Version 03: February 2, 2012, updated data and metadata to Dec 2011. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 2/1/12 5:00 PM for QA/QC to EML 2.1.0
Version 04: August 8, 2013, 2012 data and metadata updated to comply with importation to Drupal and LTER PASTA. Research location name and description updated.Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/14/13 12:02 PM for QA/QC to EML 2.1.0
Version 05: April 22, 2014, 2013 data and metadata updated to comply with importation to Drupal and LTER PASTA.Used MarcrosExportEML_HTML (working)pie_excel2007_Sep2013.xlsm 9/30/13 02:57 PM for QA/QC to EML 2.1.0
Version 06: February 18, 2015, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 07: February 24, 2016, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 08: September 15, 2017, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jun2017.xlsm 6/15/17 10:23 AM for QA/QC to EML 2.1.0
Version 09: June 14, 2018, data and metadata updated to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2018.xlsm 1/30/2018 2:24 PM for QA/QC to EML 2.1.0

Additional information: 

 

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