Dataset title: Sawgrass Above and Below Ground Total Nitrogen and Total Carbon from the Shark River Slough, Everglades National Park (FCE LTER), Florida, USA, September 2002 - ongoing Dataset ID: LT_ND_Grahl_004 Research type: Long-term Dataset Creator Name: Dr. Evelyn Gaiser Address: 11200 S.W. 8th Street Miami, Florida 33199 USA Phone: 305-348-6145 Fax: 305-348-4096 Email: gaisere@fiu.edu URL: http://algae.fiu.edu/ Name: Dr. Daniel Childers Address: Arizona State University PO Box 875502 Tempe, AZ 85287 USA Phone: 480-965-2320 Email: dan.childers@asu.edu Name: Rafael Travieso Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Phone: 305-348-3095 Email: travieso@fiu.edu Metadata Provider Organization: Florida Coastal Everglades LTER Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Phone: 305-348-6054 Email: fcelter@fiu.edu URL: http://fcelter.fiu.edu Dataset Abstract Once a year during the dry season (Dec-May) three live sawgrass plants are collected from each site. These plants are divided into their live above and live below ground parts. Then both the above and below ground parts are analyzed for total nitrogen (TN), total carbon (TC), and total phosphorus (TP). The TN and TC data are included in this data package. For Shark River Slough sawgrass TP data, please see package knb-lter-fce.1071 in the FCE LTER website's data catalog or in the EDI repository. Geographic Coverage Study Extent Description The Study Extent of this dataset includes 3 FCE Shark River Slough research sites within Everglades National Park, South Florida Bounding Coordinates Geographic description: SRS1b West bounding coordinate: -80.726 East bounding coordinate: -80.726 North bounding coordinate: 25.758 South bounding coordinate: 25.758 Geographic description: SRS1c West bounding coordinate: -80.574 East bounding coordinate: -80.574 North bounding coordinate: 25.755 South bounding coordinate: 25.755 Geographic description: SRS1d West bounding coordinate: -80.654 East bounding coordinate: -80.654 North bounding coordinate: 25.746 South bounding coordinate: 25.746 Geographic description: SRS2 West bounding coordinate: -80.785 East bounding coordinate: -80.785 North bounding coordinate: 25.55 South bounding coordinate: 25.55 Geographic description: SRS3 West bounding coordinate: -80.853 East bounding coordinate: -80.853 North bounding coordinate: 25.468 South bounding coordinate: 25.468 Temporal Coverage Start Date: 2002-09-01 End Date: 2023-03-01 Data Table Entity Name: LT_ND_Grahl_004.csv Entity Description: Sawgrass Above and Below Ground Total Nitrogen and Total Carbon from the Shark River Slough, Everglades National Park, South Florida Object Name: LT_ND_Grahl_004.csv Data Format Number of Header Lines: 1 Attribute Orientation: column Field Delimiter: , Number of Records: Attributes Attribute Name: SITENAME Attribute Label: sitename Attribute Definition: Name of LTER site Storage Type: text Measurement Scale: text Missing Value Code: Attribute Name: Date Attribute Label: date Attribute Definition: Collection date Storage Type: datetime Measurement Scale: Missing Value Code: Attribute Name: Type Attribute Label: type Attribute Definition: Type of Carbon and Nitrogen measured, aboveground or belowground Storage Type: text Measurement Scale: text Missing Value Code: Attribute Name: mgC/g Attribute Label: total carbon Attribute Definition: milligrams carbon per gram sawgrass Storage Type: data Measurement Scale: Units: milligramsPerGram Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: mgN/g Attribute Label: total nitrogen Attribute Definition: milligrams nitrogen per grams sawgrass Storage Type: data Measurement Scale: Units: milligramsPerGram Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Methods Sampling Description Three live random sawgrass plants were collected from each site. Plants were stored in a freezer for later analysis. After plants were defrosted, they were separated between into live above and live below gorund material. Below ground material was washed to remove any sediment attached. Then, plants were placed in an oven at 70oC for 72 hours. After the plant material was dry, it was ground up for nutrient analysis using a whiley mill. Material was stored in 7mL vials. The analysis of TN & TC was done using the a Carlo Erba elemental auto-analyzer. Method Step Description Three live random sawgrass plants were collected from each site. Plants were stored in a freezer for later analysis. After plants were defrosted, they were separated between into live above and live below gorund material. Below ground material was washed to remove any sediment attached. Then, plants were placed in an oven at 70C for 72 hours. After the plant material was dry, it was ground up for nutrient analysis using a whiley mill. Material was stored in 7mL vials. The analysis of TN & TC was done using the a Carlo Erba elemental auto-analyzer. Instrumentation oven, clippers, whiley mill, microscale, Carlo Erba elemental auto-analyzer, PC, Microsoft Excel Quality Control Field data are written in pencil on waterproof paper and photocopied upon return to the laboratory. They are then entered into the appropriate digital format. These data are reviewed in hard copy and digital format by the lab manager. Laboratory data are written in pencil on waterproof paper, photocopied prior to computer entry and then entered digitally in duplicate and cross-referenced to hard copy notes. Data outliers, determined by comparison to long-term variance in that parameter, are highlighted in resulting spreadsheets for examination by the principal investigator, who may discard the values. Distribution Online distribution: https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1070/14/5340bfe54ec51861d148e190838c9336 Intellectual Rights This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you. Dataset Keywords FCE Florida Coastal Everglades LTER FCE LTER ecological research sawgrass Cladium jamaicense TN TC Above ground total nitrogen Below ground total nitrogen Above ground total carbon Below ground total carbon long-term monitoring total carbon biogeochemistry long term monitoring roots marshes total nitrogen primary production Maintenance 1070.14: Added 2023 data; updated metadata to replace crossref IDs with ROR IDs in project funding elements, added information to abstract about related dataset Dataset Contact Position: Information Manager Organization: Florida Coastal Everglades LTER Address: Florida International University 11200 SW 8th Street, OE 148 Miami, FL 33199 USA Email: fcelter@fiu.edu URL: http://fcelter.fiu.edu Project permits EVER-2002-SCI-0070 EVER-2003-SCI-0067 EVER-2004-SCI-0070 EVER-2005-SCI-0081 EVER-2007-SCI-0065 EVER-2009-SCI-0070 EVER-2011-SCI-0071 EVER-2013-SCI-0058 EVER-2015-SCI-0062 EVER-2017-SCI-0054 EVER-2019-SCI-0055 EVER-2022-SCI-0029