Nutrient concentrations from porewater samples at Spartina alterniflora-dominated salt marsh plots in North Inlet, Georgetown, SC.

Summary

Short name: 

LTE-MP-NIN-porewater

Abstract: 

Nutrient concentrations from permanent porewater samplers in a Spartina alterniflora-dominated salt marsh in North Inlet, Georgetown, SC. There are six sites. Two sites are low marsh; four are high marsh. One site in the high marsh is fertilized with nitrogen and phosphorus. One site in the high marsh is located in a dieback. Sampling at the dieback site occurred from 2006-2010.

Data set ID: 

123

EML revision ID: 

13
Published on EDI/LTER Data Portal

Citation Suggestion: 

Morris, J., Sundberg, K., 2005. Nutrient concentrations from porewater samples at Spartina alterniflora-dominated salt marsh plots in North Inlet, Georgetown, SC. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/504b415e9328965ff302ff9a7190f9c5
Categories

Core Areas: 

Keywords: 

Dates

Date Range: 

Wednesday, December 1, 1993 to Saturday, December 31, 2016

Publication Date: 

Saturday, January 1, 2005
People

Owner/Creator: 

Jim Morris
Karen Sundberg
Plum Island Ecosystems LTER

Contact: 

Plum Island Ecosystems LTER
Related
Downloads

Data sources: 

LTE-MP-NIN-porewater_csv
LTE-MP-NIN-porewater_xls
Methodology

Purpose: 

 

Methods: 

Sampling Description:
Triplicate porewater diffusion samplers are permanently installed on the marsh platform in fertilized (26.7 mol N/m2/y and 12.3 mol P/m2/y) or control plots in a Spartina alterniflora-dominated salt marsh in North Inlet, SC.  Each sampler collects porewater from depths of 10, 25, 50, 75, and 100 cm.  Samples are retrieved monthly.  Porewater samples are either filtered (0.45 uM) or preserved with ZnAc (for sulfides) immediately upon return from the field.

Lab Methods:
Filtered porewater samples are analyzed for PO4, NH4, chloride and Fe (+2) concentrations according to standard laboratory protocols (Strickland and Parson 1972; Gibbs 1979).  Unfiltered, preserved porewater samples are analyzed for sulfide (Cline 1969).

Elevation:
LTE-MP-NIN-GIHM, ~ 0.5 meters NAVD88
LTE-MP-NIN-GILM, ~ 0.2 meters NAVD88
LTE-MP-NIN-OLHM, ~ 0.4 meters NAVD88
LTE-MP-NIN-OLLM, ~ 0.3 meters NAVD88
LTE-MP-NIN-DBHM, ~ 0.3 meters NAVD88

Maintenance: 

Collections occur every month.
Database is updated once annually, usually in the winter.
Study and data collection are ongoing as of Jan 2017.
Version 01:July 11, 2006 Level 3+ EML using Jim Laundre's Excel program
Version 02: January 10, 2007 data and metadata update
Version 03: March 13, 2008 Data and metadata update
Version 04: February 20, 2009 Data and metadata update
Version 05: January 13, 2010 Data and metadata update
Version 06: October 26, 2011 Data and metadata update
Version 07: January 12, 2012, 2011 data and metadata update, using MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/12/12 11:51AM for QA/QC to EML 2.1.0
Version 08: March 14, 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 09: April 21, 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 10: February 11, 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 11: 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 12: March 7, 2016, edited incorrect BD and "." values, 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 13: September 20, 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

 

Additional information: