uid=PIE,o=EDI,dc=edirepository,dc=org all public read LTE-MP-LPC-porewatermeans Porewater nutrient concentrations from control plots at a Spartina patens-dominated salt marsh at Law's Point, Rowley River, Plum Island Ecosystem LTER, MA. Jim Morris University of South Carolina 803-777-3948 morris@inlet.geol.sc.edu http://research.cas.sc.edu/morris/ https://orcid.org/0000-0002-0511-642X Karen Sundberg University of South Carolina sundberg@biol.sc.edu https://orcid.org/0000-0001-5871-6376 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Rob Daoust unknown10@mbl.edu associated researcher 2021 English
Porewater samples from a Spartina patens-dominated salt marsh on the Rowley River in the Plum Island Ecosystem (PIE) LTER site were analyzed for ammonium, phosphate, sulfide and chloride concentrations.
Inorganic Nutrients Core Areas estuaries salt marshes Northeast United States Rowley River Spartina patens inorganic nutrients chloride ammonium phosphate sulfide porewater Massachusetts PIE LTER Plum Island Ecosystems LTER Controlled Vocabulary  
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https://pie-lter.ecosystems.mbl.edu/content/nutrient-concentrations-porewater-samples-spartina-patens-dominated-salt-marsh-laws-point-ro Law's Point on Rowley River, Rowley, MA, site of PIE LTER Spartina patens plot level fertilization experiment -70.842918395996 -70.842918395996 42.730953216553 42.730953216553 2000-08-01 2021-10-31   Collections occur approximately every month from May through October. Database is updated once annually, usually in the winter. Study and data collection are ongoing as of Dec 2021. Version 01; new data and metadata Version 02; new data and metadata Version 03: February 2, 2012, updated data and metadata to Oct 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 23, 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 Version 10: February 27, 2019, data and metadata updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2018.xlsm 6/21/18 3:53 PM for QA/QC to EML 2.1.0 Version 11: October 2, 2020, data and metadata updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Sep2020.xlsm 9/17/20 1:11 PM for QA/QC to EML 2.1.0. Version 12: July 27, 2021, data and metadata updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Jul2021.xlsm 7/26/2021 9:04 AM for QA/QC to EML 2.1.0. Version 13: 09 November 2021, Updated data and metadata. Used MarcrosExportEML_HTML (working)pie_excel2007_Jul2021.xlsm 7/26/2021 9:04 AM for QA/QC to EML 2.1.0. Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems
General: This data set is part of an on-going LTER project at the Plum Island Ecosystem (PIE) site.   The sampling location is in a Spartina patens-dominated marsh at Law's Point  between the Rowley River and West Creek in Rowley MA.  Sampling Description: Triplicate porewater diffusion samplers were permanently installed in control plots on the marsh platform in a Spartina patens-dominated salt marsh.  Each sampler collects porewater from depths of 10, 25, 50, 75, and 100 cm.  Samples are retrieved approximately monthly from May through October.  Porewater samples are either filtered (0.2 uM) and preserved with H2SO4 (for PO4 and NH4) or preserved unfiltered with ZnAc (for sulfides) either in the field or immediately upon return from the field.  The samples are then shipped to a lab in SC.  Porewater collection began in August 2000.  In May 2006 the Control porewater plots were relocated  due to potential contamination from fertilized plots.  Lab Methods: Filtered porewater samples are analyzed for PO4 and NH4 according to standard laboratory protocols (Strickland and Parsons 1972) and for chloride concentrations by coulometric titration using a Haake-Buchler chloridometer.  Unfiltered, preserved porewater samples are analyzed for sulfide concentrations colorimetrically (Cline 1969).  Salinity was calculated from chloride concentrations of filtered porewater samples (by coulometric titration using a Haake-Buchler chloridometer) before August 2020.  Beginning in August 2020, salinity was measured using an EXTECH EC600 conductivity meter. Numerical Processing: Data are reported as geometric means of sample concentrations from 3 depths within the root zone (10, 25, and 50 cm), and the 95% confidence interval, for 3 replicate samplers (n=9 per time).  Statistics were computed using SAS (SAS System for Windows; release 8.02; SAS Institute, Inc; Cary, NC). Elevation: LTE-MP-LPP, ~ 1.45 meters NAVD88
Plum Island Ecosystems Long Term Ecological Research (PIE LTER IV, 2016-2022) Anne Giblin Marine Biological Laboratory (508) 289-7488 (508) 457-1548 agiblin@mbl.edu http://orcid.org/0000-0003-3851-2178 principalInvestigator Wilfred Wollheim University of New Hampshire (603) 862-5022 Wil.Wollheim@unh.edu http://orcid.org/0000-0002-5009-3212 principalInvestigator Jim Morris University of South Carolina 803-777-3948 morris@inlet.geol.sc.edu http://research.cas.sc.edu/morris/ https://orcid.org/0000-0002-0511-642X principalInvestigator Nathaniel Weston Villanova University (610) 519-8009 nathaniel.weston@villanova.edu http://nweston.org/ http://orcid.org/0000-0002-6837-360X principalInvestigator Linda Deegan Woodwell Climate Research Center 508-444-1557 ldeegan@woodwellclimate.org http://orcid.org/0000-0002-1017-9599 principalInvestigator Joe Vallino Marine Biological Laboratory (508) 289-7648 (508) 457-1548 jvallino@mbl.edu http://orcid.org/0000-0002-4184-4512 principalInvestigator Robert Pontius Clark University (508) 793-7761 (508) 793-8881 rpontius@clarku.edu http://www2.clarku.edu/~rpontius/ http://orcid.org/0000-0001-7287-5875 principalInvestigator Jarrett Byrnes University of Massachusetts Boston (617) 287-3145 Jarrett.Byrnes@umb.edu http://byrneslab.net/ http://orcid.org/0000-0002-9791-9472 principalInvestigator The Plum Island Ecosystems (PIE) LTER is developing a predictive understanding of the response of a linked watershed-marsh-estuarine system in northeastern Massachusetts to rapid environmental change. Over the last 30 years, surface sea water temperatures in the adjacent Gulf of Maine have risen at 3 times the global average, rates of sea-level rise have accelerated, and precipitation has increased. Coupled with these changes in climate and sea level are substantial changes within the rapidly urbanizing watersheds that influence water, sediment, and nutrient delivery to the marsh and estuary. In PIE IV our focus is on: Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts. NSF OCE LTER-Plum Island Ecosystems: Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts. 1637630 LTE-MP-LPC-porewatermeans_csv Nutrient concentrations from porewater samples at a Spartina patens-dominated salt marsh at Law's Point, Rowley River, Plum Island Ecosystem, MA. LTE-MP-LPC-porewatermeans.csv 8248 c8b078d7acca0e4529c89a837790b117 ec1f6730efe3ae0718dc153e602c00a9498fc6f3 1 0 \r\n column , https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/LTE-MP-LPC-porewatermeans_8.csv
 
SITE SITE name of sampling station string LPC Laws Point Patens Control YEAR YEAR year date YYYY MONTH MONTH month date MM DAY DAY day date DD SALINITY SALINITY salinity; ppt partPertThousand real . missing value BD below detection L1 (SALINITY) L1 (SALINITY) lower limit; 95% confidence interval; ppt partPerThousand real . missing value BD below detection L2 (SALINITY) L2 (SALINITY) upper limit; 95% confidence interval; ppt partPerThousand real . missing value BD below detection NH4 NH4 ammonium concentration, uM-N micromolePerLiter real . missing value BD below detection L1 (NH4) L1 (NH4) lower limit; 95% confidence interval; NH4, uM-N micromolePerLiter real . missing value BD below detection L2 (NH4) L2 (NH4) upper limit; 95% confidence interval; NH4, uM-N micromolePerLiter real . missing value BD below detection PO4 PO4 phosphate concentration, uM-P micromolePerLiter real . missing value BD below detection L1 (PO4) L1 (PO4) lower limit; 95% confidence interval; PO4, uM-P micromolePerLiter real . missing value BD below detection L2 (PO4) L2 (PO4) upper limit; 95% confidence interval; PO4, uM-P micromolePerLiter real . missing value BD below detection S2 S2 sulfide concentration, uM-S micromolePerLiter real . missing value BD below detection L1 (S2) L1 (S2) lower limit; 95% confidence interval; S2, uM-S micromolePerLiter real . missing value BD below detection L2 (S2) L2 (S2) upper limit; 95% confidence interval; S2, uM-S micromolePerLiter real . missing value BD below detection 103
LTE-MP-LPC-porewatermeans_xls Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data. LTE-MP-LPC-porewatermeans.xls 124416 c07070dc0eb05467bbdcc251010f53ae 5bb74cfceee8486ecb70326407be31fc15ca54e6 application/vnd.ms-excel https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/LTE-MP-LPC-porewatermeans_6.xls
 
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