Florida Coastal Everglades LTER

Sawgrass above ground biomass from the Taylor Slough, Everglades National Park (FCE LTER), Florida, USA, August 1999 - ongoing

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Authors: Tiffany Troxler, Daniel Childers
Time period: 1999-08-01 to 2024-01-01
Package id: knb-lter-fce.1086.13
Dataset id: LT_PP_Rubio_001

How to cite:
Troxler, T., D. Childers. 2024. Sawgrass above ground biomass from the Taylor Slough, Everglades National Park (FCE LTER), Florida, USA, August 1999 - ongoing. Environmental Data Initiative. https://doi.org/10.6073/pasta/f25ebd9957b5481b85652b702ec03806. Dataset accessed 2024-12-04.

Geographic Coverage

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Detailed Metadata

Dataset Creator(s)
- Name: Dr. Tiffany Troxler
- Address: Florida International University
  University Park
  OE 148
  Miami, FL 33199 USA
- Phone: 305-348-1453
- Fax: 305-348-4096
- Email: troxlert@fiu.edu
- URL: http://wetland.fiu.edu/
- Name: Dr. Daniel Childers
- Address: Arizona State University
  PO Box 875502
  Tempe, AZ 85287 USA
- Phone: 480-965-2320
- Fax: 480-965-8087
- Email: dan.childers@asu.edu

Dataset Abstract
Sawgrass biomass is measured for TS/Ph-1, 2, 3, & 6 since 1999; TS/Ph-4 & 5 since 1997 to 2006; SRS-1b, 2, & 3 since 2000; SRS1c for 2005 to 2006, and SRS1d since 2006. Three 1 m2 plots are placed on each site. The sites are measured every two months. The number of sawgrass plants is counted for each 1 m2 plot and one third or a minimum of fifteen plants is measured. For each measured plant, measurements of the total number of live leaves, length of the live leaves, and culm diameter at the base are taken. From these measurements we calculate the average leaf length, and the sum of the length of the leaves. We created a model for biomass using a stepwise regression to see which of the variables measured and calculated are more correlated to explain plant biomass. Obtaining the mean biomass for the plants within the plot and multiplying it by the number of plants counted in the plot calculates biomass for each plot. The total biomass for each plot is summed with the other two plots in the same site, and they are averaged to obtain one biomass number per site. To validate our model, plant clippings are obtained in which four plants are clipped (small, medium, large, inflorescence) from each site. The same measurements are applied to the clipped plants as those applied to the measured plants in the plots. The plant clippings are oven dried at 70 degrees C and weighed.

Geographic Coverage

Study Extent Description
The Study Extent of this dataset includes the FCE Taylor Slough research sites within Everglades National Park, South Florida

Bounding Coordinates
FCE LTER Site TS/Ph1b
N: 25.439, S: 25.439, E: -80.590, W: -80.590

FCE LTER Site TS/Ph2
N: 25.404, S: 25.404, E: -80.607, W: -80.607

FCE LTER Site TS/Ph3
N: 25.252, S: 25.252, E: -80.663, W: -80.663

FCE LTER Site TS/Ph6b
N: 25.216, S: 25.216, E: -80.651, W: -80.651

FCE LTER Sites
TS/Ph1b,TS/Ph2,TS/Ph3,TS/Ph6b

Temporal Coverage
Start Date: 1999-08-01
End Date: 2024-01-01

Attributes
- Data Table: Sawgrass above ground biomass from the Taylor Slough, Everglades National Park, South Florida
  
  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:
  
  Sawgrass_AG_Biomass
  
  Attribute Label:
  
  biomass
  
  Attribute Definition:
  
  Sawgrass above ground biomass
  
  Storage Type:
  
  data
  
  Measurement Scale:
  
  Units: gramPerMeterSquared
  Precision: 0.0001
  Number Type: real
  
  Missing Value Code:
  
  -9999.0000 (Value will never be recorded)
  
  Attribute Name:
  
  Sawgrass_AG_Biomass_STD
  
  Attribute Label:
  
  standard deviation
  
  Attribute Definition:
  
  sawgrass above ground Biomass standard deviation
  
  Storage Type:
  
  data
  
  Measurement Scale:
  
  Units: gramPerMeterSquared
  Precision: 0.0001
  Number Type: real
  
  Missing Value Code:
  
  -9999.0000 (Value will never be recorded)
  
  Attribute Name:
  
  Sawgrass_Culm_Density
  
  Attribute Label:
  
  culm density
  
  Attribute Definition:
  
  sawgrass culm density
  
  Storage Type:
  
  data
  
  Measurement Scale:
  
  Units: numberPerMeterSquared
  Precision: 0.01
  Number Type: real
  
  Missing Value Code:
  
  -9999.00 (Value will never be recorded)
  
  Attribute Name:
  
  Sawgrass_Culm_Density_STD
  
  Attribute Label:
  
  standard deviation
  
  Attribute Definition:
  
  sawgrass culm density standard deviation
  
  Storage Type:
  
  data
  
  Measurement Scale:
  
  Units: numberPerMeterSquared
  Precision: 0.01
  Number Type: real
  
  Missing Value Code:
  
  -9999.00 (Value will never be recorded)

Methods

Sampling Description
The number of sawgrass plants is counted for each 1 m^2 plot and one third or a minimum of fifteen plants is measured. For each measured plant, measurements of the total number of live leaves, length of the live leaves, and culm diameter of the live leaves at the base are taken. From these measurements we calculate the average leaf length, and the sum of the length of the leaves. We created a model for biomass using a stepwise regression to see which of the variables measured and calculated are more correlated to explain plant biomass. Obtaining the mean biomass for the plants within the plot and multiplying it by the number of plants counted in the plot calculates biomass for each plot. The total biomass for each plot is summed with the other two plots in the same site, and they are averaged to obtain one biomass number per site. To validate our model, plant clippings are obtained in which four plants are clipped (small, medium, large, inflorescence) from each site. The same measurements are applied to the clipped plants as those applied to the measured plants in the plots.

Method Step

Description
The number of sawgrass plants is counted for each 1 m^2 plot and one third or a minimum of fifteen plants is measured. For each measured plant, measurements of the total number of live leaves, length of the live leaves, and culm diameter of the live leaves at the base are taken. From these measurements we calculate the average leaf length, and the sum of the length of the leaves. We created a model for biomass using a stepwise regression to see which of the variables measured and calculated are more correlated to explain plant biomass. Obtaining the mean biomass for the plants within the plot and multiplying it by the number of plants counted in the plot calculates biomass for each plot. The total biomass for each plot is summed with the other two plots in the same site, and they are averaged to obtain one biomass number per site. To validate our model, plant clippings are obtained in which four plants are clipped (small, medium, large, inflorescence) from each site. The same measurements are applied to the clipped plants as those applied to the measured plants in the plots.
Submission notes:
The precision of the DATE (Column2) is ONLY to Month and Year (NOT DAY!). Biomass till Jan-04 = (0.6902+0.00317*TCH+0.30735*CDB+0.00058451*SLLB+0.00504*Fl Ht)^3.3333333, Biomass from Feb-04 on = (0.6902+0.00612*TCH+0.54446*CDB+0.00233*Fl Ht)^3.3333333;

Prior to December 1999, a minimum of 15 plants in each plot were not measured, only one third of the total plants in a plot were measured;
At the below sites and dates, one third of the total plants in a plot or a minimum of 15 plants were not measured;
TS/Ph1b: 01-Jan-00, 01-Mar-00, 01-Sep-00, 01-Mar-01,01-Jul-01, 01-Nov-01, 01-Nov-02, 01-Mar-03, 01-Sep-08, 01-Nov-12, 01-Jan-13, 01-Mar-13, 01-May-13, 01-Jul-13, 01-Sep-13, 01-Nov-13, 01-Jan14, 01-Mar-14, 01-May-14, 01-Jul-14, 01-Sep-14, 01-Nov-14, 01-Jan-15, 01-Mar-15, 01-May-15, 01-Jul-15, 01-Sep-15, 01-Nov-15, 01-Jan-16, 01-Mar-16, 01-May-16, 01-Jul-16, 01-Sep-16, 01-Nov-16, 01-Jan-17, 01-Mar-17, 01-May-17, 01-Jul-17, 01-Sep-17, 01-Nov-17, 01-Jan-18, 01-Mar-18, 01-May-18, 01-Jul-18, 01-Sep-18, 01-Nov-18, and 01-Jan-19, 01-Mar-19, 01-May-19, 01-Jul-19, 01-Sep-19, 01-Nov-19, 01-Jan-20, 01-Mar-20, 01-May-20, 01-Jul-20, 01-Sep-20, 01-Nov-20 and 01-Jan-21, 01-Mar-21, 01-May-21, 01-Jul-21, 01-Sept-21, 01-Nov-21, 01-Jan-22, 01-Mar-22, 01-May-22, 01-Jul-22, 01-Sept-22, 01-Nov-22, 01-Jan-23, 01-Mar-23, 01-May-23, 01-Jul-23, 01-Sept-23, 01-Nov-23, and 01-Jan-24;
TS/Ph2: 01-Mar-00, 01-Sep-00, 01-Jan-02, 01-Nov-02, 01-Sep-03, 01-Nov-03, 01-Mar-04, 01-Sep-04, 01-Nov-04, 01-Jan-05, 01-Mar-05, 01-May-05, 01-Jul-05, 01-Sep-05, 01-Nov-05, 01-Jan-06, 01-Mar-06, 01-May-06, 01-Jul-06, 01-Sep-06, 01-Nov-06, 01-Jan-07, 01-Mar-07, 01-May-07, 01-Jul-07, 01-Sep-07, 01-Nov-07, 01-Jan-08, 01-Mar-08, 01-May-08, 01-Jul-08, 01-Sep-08, 01-Nov-08, 01-Jan-09, 01-Mar-09, 01-May-09, 01-Jul-09, 01-Sep-09, 01-Nov-09, 01-Jan-09, 01-Mar-09, 01-Jul-09, 01-Sep-09, 01-Nov-09, 01-Jan-10, 01-Mar-10, 01-May-10, 01-Jul-10, 01-Sep-10, 01-Nov-10, 01-Jan-11, 01-Mar-11, 01-May-11, 01-Jul-11, 01-Sep-11, 01-Nov-11, 01-Jan-12, 01-Mar-11, 01-May-11, 01Jul11, 01-Sep-11, 01-Nov-11, 01-Jan-12, 01-Mar-12, 01-May-12, 01-Jul-12, 01-Sep-12, 01-Nov-12, 01-Jan-13, 01-Mar-13, 01-May-13, 01-Jul-13, 01-Sep-13, 01-Nov-13, 01-Jan-14, 01-Mar-14, 01-May-14, 01-Jul-14, 01-Sep-14, 01-Nov-14, 01-Jan-15, 01-Mar-15, 01-May-15, 01-Jul-15, 01-Sep-15, 01-Nov-15, 01-Jan-16, 01-Mar-16, 01-May-16, 01-Jul-16, 01-Sep-16, 01-Nov-16, 01-Jan-17, 01-Mar-17, 01-May-17, 01-Jul-17, 01-Sep-17, 01-Nov-17, 01-Jan-18, 01-Mar-18, 01-May-18, 01-Jul-18, 01-Sep-18, 01-Nov-18, 01-Jan-19, 01-Mar-19, 01-May-19, 01-Jul-19, 01-Sep-19, 01-Nov-19, 01-Jan-20, 01-Mar-20, 01-May-20, 01-Jul-20, 01-Sep-20, 01-Nov-20 and 01-Jan-21, 01-Mar-21, 01-May-21, 01-Jul-21, 01-Sept-21, 01-Nov-21, 01-Jan-22, 01-Mar-22, 01-May-22, 01-Jul-22, 01-Sept-22, 01-Nov-22, 01-Jan-23, 01-Mar-23, 01-May-23, 01-Jul-23, 01-Sept-23, 01-Nov-23, and 01-Jan-24;
TS/Ph3: 01-Jan-00, 01-Mar-00, 01-May-00, 01-Jul-00, 01-Sep-00, 01-Nov-00, 01-Mar-01, 01-May-01, 01-Jul-01, 01-Nov-01, 01-Jan-02, 01-May-02, 01-Jul-02, 01-Nov-02, 01-Jan-03, 01-Nov-03, 01-Mar-04, 01-Sep-04, 01-Nov-04, 01-Jan-07, 01-Mar-08, 01-Jul-08, 01-Jan-14, 01-Jan-15, 01-Mar-15, 01-Jul-15, 01-Nov-15, 01-Jan-16, 01-Mar-16, 01-May-16, 01-Jul-16, 01-Sep-16, 01-Nov-16, 01-Jan-17, 01-Mar-17, 01-May-17, 01-Jul-17, 01-Sep-17, 01-Nov-17, 01-Jan-18, 01-Mar-18, 01-May-18, 01-Jul-18, 01-Sep-18, 01-Nov-18, 01-Jan-19, 01-May-19, 01-Jul-19, 01-Sep-19, 01-Nov-19, 01-Jan-20, 01-Mar-20, 01-May-20, 01-Jul-20, 01-Sep-20, 01-Nov-20 and 01-Jan-21, 01-Mar-21, 01-May-21, 01-Jul-21, 01-Sept-21, 01-Nov-21, 01-Jan-22, 01-Mar-22, 01-May-22, 01-Jul-22, 01-Sept-22, 01-Nov-22, 01-Jan-23, 01-Mar-23, 01-May-23, 01-Jul-23, 01-Sept-23, 01-Nov-23, and 01-Jan-24;
TS/Ph6b: 01-Jan-00, 01-Mar-00, 01-May-00, 01-Sep-00, 01-Nov-00, 01-Jan-01, 01-Mar-01, 01-Jul-01, 01-Sep-01, 01-Nov-01, 01-Jan-02, 01-Mar-02, 01-May-02, 01-Jul-02, 01-Sep-02, 01-Nov-02, 01-Jan-04, 01-Mar-05, 01-Jul-05, 01-Mar-06, 01-Jan-16, 01-Jan-18;
No March 2019 measurements taken at all for TS/Ph 3 due to dry season and helicopter cancellations (site not visited in March or April);
No November 2021 measurements taken at all for TS/Ph6b due to boat issues

Instrumentation
calipers, meter sticks, PC

Quality Control
Data is checked by the following Excel formula for possible data entry mistakes: [=IF(OR({TCH}<30,{CBD}>1.5),"Problem","")]. Once Biomass and Culm densities are calculated the PI and Techinician review the values for possible peaks and valleys (usually those that are greater than 2-3 times the previous and post values for a given site).

Distribution and Intellectual Rights
Online distribution
https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1086/13/61b091fed113fa32af6259ce68c97166
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.

Keywords
FCE, Florida Coastal Everglades LTER, ecological research, long-term monitoring, Cladium jamaicense, culm density, above ground biomass, Taylor Slough, Everglades National Park, biomass, productivity, water, plants, processes, nutrients, leaves, freshwater macrophytes, primary production, primary productivity, aboveground biomass, primary production

Dataset Contact
- Name: Emily Standen
- Position: Technical Staff
- Organization: Southeast Environmental Research Center
- Address: Florida International University
  University Park
  OE 148
  Miami, FL 33199 USA
- Phone: 305-348-1576
- Fax: 305-348-4096
- Email: estanden@fiu.edu
- URL: http://www.fiu.edu/~ecosyst/
- 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: https://fcelter.fiu.edu

Data Table and Format
Data Table: Sawgrass above ground biomass from the Taylor Slough, Everglades National Park, South Florida

Entity Name:

LT_PP_Rubio_001.csv

Entity Description:

Sawgrass above ground biomass from the Taylor Slough, Everglades National Park, South Florida

Object Name:

LT_PP_Rubio_001.csv

Number of Header Lines:

1

Attribute Orientation:

column

Field Delimiter:

,

Number of Records:

585

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: https://fcelter.fiu.edu

Project permits
National Park Service scientific research and collecting permit EVER-2001-SCI-0071
National Park Service scientific research and collecting permit EVER-2002-SCI-0070
National Park Service scientific research and collecting permit EVER-2003-SCI-0067
National Park Service scientific research and collecting permit EVER-2004-SCI-0070
National Park Service scientific research and collecting permit EVER-2005-SCI-0081
National Park Service scientific research and collecting permit EVER-2007-SCI-0065
National Park Service scientific research and collecting permit EVER-2009-SCI-0070
National Park Service scientific research and collecting permit EVER-2011-SCI-0071
National Park Service scientific research and collecting permit EVER-2013-SCI-0058
National Park Service scientific research and collecting permit EVER-2015-SCI-0062
National Park Service scientific research and collecting permit EVER-2017-SCI-0054
National Park Service scientific research and collecting permit EVER-2019-SCI-0055
National Park Service scientific research and collecting permit EVER-2022-SCI-0029
National Park Service scientific research and collecting permit EVER-2023-SCI-0011

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Metadata

Sawgrass above ground biomass from the Taylor Slough, Everglades National Park (FCE LTER), Florida, USA, August 1999 - ongoing

At a Glance

Detailed Metadata