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Sawgrass above ground biomass from the Taylor Slough, just outside Everglades National Park (FCE), South Florida from October 1997 to December 2006


At a Glance


Authors: Tiffany Troxler, Daniel Childers
Time period: 1997-10-01 to 2006-12-01
Package id: knb-lter-fce.1085.3
Dataset id: LT_PP_Iwaniec_001

How to cite:
Troxler, T., D. Childers. 2008. Sawgrass above ground biomass from the Taylor Slough, just outside Everglades National Park (FCE), South Florida from October 1997 to December 2006. Environmental Data Initiative. https://doi.org/10.6073/pasta/e6640b978d38e54d88f2231ebc7db92d. Dataset accessed 2020-08-08.

Geographic Coverage


View detailed metadata as:   HTML    Text    XML


Detailed Metadata


  • Dataset Creator(s)
    • Name: Dr. Tiffany Troxler 
    • Position: Project Collaborator
    • Organization: Southeast Environmental Research Center
    • 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 
    • Position: Associate Director for Research| Professor
    • Organization: Global Institute of Sustainability| School of Sustainability
    • Address: Arizona State University
      PO Box 875402
      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 just outside Everglades National Park, South Florida

    Bounding Coordinates
    Data were collected in the Taylor Slough, within Everglades National Park, South Florida
    N: 25.315, S: 25.295, E: -80.520, W: -80.522

    Florida Coastal Everglades LTER Study Area: South Florida, Everglades National Park, and Florida Bay
    N: 25.761, S: 24.913, E: -80.490, W: -81.078

    FCE LTER Sites
    TS/Ph4, TS/Ph5

    All Sites
    Geographic Description
    Bounding Coordinates
    FCE LTER Site TS/Ph4
    N: 25.315, S: 25.315, E: -80.522, W: -80.522
    FCE LTER Site TS/Ph5
    N: 25.295, S: 25.295, E: -80.520, W: -80.520
  • Attributes
    • Data Table:   Sawgrass above ground biomass from the Taylor Slough, just outside Everglades National Park, South Florida
      Attribute Name:
      SITENAME
      Attribute Label:
      sitename
      Attribute Definition:
      Name of LTER site
      Storage Type:
      text
      Measurement Scale:
      Name of LTER site
      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: gramsPerSquareMeter
      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: gramsPerSquareMeter
      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.

    Instrumentation
    calipersmeter sticksPC

    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
    http://fcelter.fiu.edu/perl/public_data_download.pl?datasetid=LT_PP_Iwaniec_001.txt
    Data Submission Date:  2008-03-19

    Intellectual Rights
    These data are classified as 'Type I" whereby original FCE LTER experimental data collected by individual FCE researchers are available for scientific purposes 2 years after collection. Maximum lock period = 2 years. All publications based on this dataset must cite the data Contributor, the Florida Coastal Everglades Long-Term Ecological Research (LTER) Program and that this material is based upon work supported by the National Science Foundation through the Florida Coastal Everglades Long-Term Ecological Research program under Cooperative Agreement #DEB-9910514. Additionally, two copies of the manuscript must be submitted to the Florida Coastal Everglades LTER Program Office, LTER Program Manager, Florida International University, Southeast Environmental Research Center, OE 148, University Park, Miami, Florida 33199. For a complete description of the FCE LTER Data Distribution and Data User Agreement, please go to FCE Data Management Policy at http://fcelter.fiu.edu/data/DataMgmt.pdf and LTER Network Data Access Policy at http://fcelter.fiu.edu/data/core/data_user_agreement/distribution_policy.html.

  • Keywords
    FCE, Florida Coastal Everglades LTER, ecological research, long-term monitoring, Everglades National Park, Taylor Slough, plants, biomass, nutrients, primary production, productivity, processes, leaves, water, culm density, above ground biomass, Cladium jamaicense, freshwater macrophytes
  • Dataset Contact
    • Position: Information Manager
    • Organization: LTER Network Office
    • Address: UNM Biology Department, MSC03-2020
      1 University of New Mexico
      Albuquerque, NM 87131-0001 USA
    • Phone: 505 277-2535
    • Fax: 505 277-2541
    • Email: tech-support@lternet.edu
    • URL: http://www.lternet.edu

    • Name: Rafael Travieso 
    • Position: South Florida Wetland Ecosystems Lab Field Technican
    • Organization: Southeast Environmental Research Center
    • Address: Florida International University
      University Park
      OE 148
      Miami, FL 33199 USA
    • Phone: 305-348-7286
    • Fax: 305-348-4096
    • Email: travieso@fiu.edu
    • URL: http://www.fiu.edu/~ecosyst/

    • Position: Information Manager
    • Organization: Florida Coastal Everglades LTER Program
    • Address: Florida International University
      University Park
      OE 148
      Miami, FL 33199 USA
    • Phone: 305-348-6054
    • Fax: 305-348-4096
    • Email: fcelter@fiu.edu
    • URL: http://fcelter.fiu.edu

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

    Entity Name:
    LT_PP_Iwaniec_001
    Entity Description:
    Sawgrass above ground biomass from the Taylor Slough, just outside Everglades National Park, South Florida
    Object Name:
    LT_PP_Iwaniec_001
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    112