Dataset title: Sawgrass above ground biomass from the Taylor Slough, just outside Everglades National Park (FCE), South Florida from October 1997 to December 2006 Dataset ID: LT_PP_Iwaniec_001 Research type: Short-term Dataset Creator 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 Metadata Provider Organization: Florida Coastal Everglades LTER Program Address: Florida International University University Park OE 148 Miami, FL 33199 USA Phone: 305-348-6054 Email: fcelter@fiu.edu URL: http://fcelter.fiu.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 Geographic description: Data were collected in the Taylor Slough, within Everglades National Park, South Florida West bounding coordinate: -80.522 East bounding coordinate: -80.520 North bounding coordinate: 25.315 South bounding coordinate: 25.295 Geographic description: Florida Coastal Everglades LTER Study Area: South Florida, Everglades National Park, and Florida Bay West bounding coordinate: -81.078 East bounding coordinate: -80.490 North bounding coordinate: 25.761 South bounding coordinate: 24.913 FCE LTER Sites: TS/Ph4, TS/Ph5 All Sites Geographic Description:FCE LTER Site TS/Ph4 Longitude:-80.522 Latitude:25.315 Geographic Description:FCE LTER Site TS/Ph5 Longitude:-80.520 Latitude:25.295 Temporal Coverage Start Date: 1997-10-01 End Date: 2006-12-01 Data Table 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 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: 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 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 Online distribution: http://fcelter.fiu.edu/perl/public_data_download.pl?datasetid=LT_PP_Iwaniec_001.txt 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. Dataset 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 Data Submission Date: 2008-03-19 Maintenance This is a short-term primary production dataset and research sites have been decommissioned so there will be no subsequent data addtions to this file. This dataset replaces all previous versions of LT_PP_Iwaniec_001 original and (v1-v5). The FCE program is discontinuing its practice of versioning data as of March 2013. 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 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 Dataset Submission Date 2008-03-19 Data Submission Notes 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. For TS/Ph5, DATE 01-Oct-03, the SAWGRASS_AG_BIOMASS and SAWGRASS_AG_BIOMASS_STD have changed since the last submission of data (v4 to v5 - present version). Dataset Anomalies 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.;For the following dates, one third of the total plants in a plot were not measured at both TS/Ph4 & TS/Ph5:01-Sep-97,01-Dec-97,01-Feb-98,01-Apr-98,01-May-98,01-Aug-98,01-Apr-99,01-Aug-99,01-Oct-99,01-Feb-00,01-Apr-00,01-Aug-00,01-Oct-00,01-Dec-00,01-Feb-01,01-Apr-01,01-Jul-01,01-Apr-02; For the following dates at TS/Ph4 only, one third of the total plants in a plot were not measured:01-Oct-98,01-Dec-98,01-Feb-99,01-Nov-99,01-Jun-00,01-Jun-02,01-Aug-02,01-Aug-04; For the following dates at TS/Ph5 only, one third of the total plants in a plot were not measured:01-Oct-01,01-Dec-01,01-Feb-02,01-Jun-03,01-Aug-03,01-Dec-04,01-Jun-05,01-Oct-05,01-Feb-06. Information Management Notes This is a short-term primary production dataset and research sites have been decommissioned so there will be no subsequent data addtions to this file. This dataset replaces all previous versions of LT_PP_Iwaniec_001 original and (v1-v5). The FCE program is discontinuing its practice of versioning data as of March 2013.