The file contains measurements of the two tallest Phragmites australis stems per five meter interval along transects at the Argilla Rd. salt marsh restoration site (Ipswich, MA) and Rough Meadows reference marsh (Rowley, MA – Stackyard Road area). The culvert feeding Argilla Marsh was enlarged in late November 1998, thus data from 1999 onward is considered as representing a hydrologically restored marsh.
A long term study not directly part of the PIE LTER, but a companion study related to tidal restrictions and hydrological alterations of salt marshes in the Plum Island ecosystem.
Transect lines laid out as described in LTE-EX-ARGILLA-RM-VEGSTN. There were six transects that contained Phragmites australis in the tidally restricted (Argilla) marsh and nine in the reference (Rough
Meadow) marsh. At every five meter interval in which P. australis was present, the two tallest individual stems were measured from the sediment surface to the top of the stem, usually at the tip of its flower cluster.
See the below file names for additional associated data.
NOTES AND COMMENTS:
This data set includes zeros for years in which P. australis had been present in a 5 meter interval in the restored marsh pre restoration, but no longer was there post restoration.
More than two P. australis heights were taken per five meter intervals in years after 1999 (post-restoration). These additional data are available upon request.
Version 01, July 20, 2007 Level 3+ EML using Jim Laundre's Excel program
Version 02, March 12, 2008 Data and metadata update
Version 03, 25Jan2010 keywors update
Version 04: January 17, 2017, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jul2016.xlsm 7/20/16 5:08 PM for QA/QC to EML 2.1.0
Version 05: January 28, 2021, 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.