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Patterns of root biomass, productivity, turnover, and decomposition in riverine mangroves in the Everglades, Florida, USA, post-Irma, 2018-2019


At a Glance


(Zip file containing 6 files)

Authors: Edward Castañeda-Moya, Elena Solohin, John Kominoski
Time period: 2018-01-01 to 2019-12-31
Package id: knb-lter-fce.1278.1

How to cite:
Castañeda-Moya, E., E. Solohin, J. Kominoski. 2025. Patterns of root biomass, productivity, turnover, and decomposition in riverine mangroves in the Everglades, Florida, USA, post-Irma, 2018-2019. Environmental Data Initiative. https://doi.org/10.6073/pasta/2ea2d47e2de9de450a9fa270c67733bf. Dataset accessed 2025-01-18.

Geographic Coverage
This data set contains the following files.

FCE_1278_Root_Biomass_post-Irma
Root biomass post-Irma
Attribute table details     Download

FCE_1278_Root_Production_post-Irma
Root Production post-Irma
Attribute table details     Download

FCE_1278_Root_Turnover_post-Irma
Root Turnover post-Irma
Attribute table details     Download

FCE_1278_Root_CNP_post-Irma
Root CNP post-Irma
Attribute table details     Download

FCE_1278_Root_Decomposition_post-Irma
Root decomposition post-Irma
Attribute table details     Download

FCE_1278_Root_Decomposition_CNP_post-Irma
Root Decomposition CNP post-Irma
Attribute table details     Download



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Detailed Metadata


  • Dataset Abstract
    Patterns of root biomass, productivity, turnover, and decomposition in riverine mangroves in the Everglades, Florida, USA, post-Irma, 2018-2019: Mangrove root biomass, productivity, and decomposition in the shallow (0-45 cm depth) root zone were estimated at Florida Coastal Everglades Long Term Ecological Research (FCE-LTER) Program Shark River (SRS4, SRS5, SRS6, SRS7) mangrove sites during 2018-2019 following Hurricane Irma’s impacts. Root biomass was estimated at all sites in March 2018 with a PVC coring device (10.2 cm diameter x 45 cm length) using the same sampling protocol previously published for the study area (Castañeda-Moya et al. 2011). After collection, root cores were processed individually and initially rinsed with water through a 1-mm screen mesh to remove soil particles. Live roots were separated manually based on their buoyancy, turgor, and color (Castañeda-Moya et al. 2011; Cormier et al. 2015; Medina-Calderon et al. 2021). Live roots were further sorted into three size diameter classes including fine (<2 mm), small (2-5 mm), and coarse (5-20 mm). Roots greater than 20 mm in diameter were not included in this study due to sampling limitations (i.e., core area). All root samples were oven-dried at 60°C to a constant mass and weighed to estimate root biomass (g m-2). Root productivity was estimated with the ingrowth core technique (Vogt et al., 1998) using the same sampling protocol previously published for the study area (Castañeda-Moya et al. 2011). Ingrowth cores (10.2 cm diameter x 45 cm length) were made of synthetic material (3 mm mesh) and filled with root-free commercial sphagnum peat moss. This material has similar soil properties (i.e., bulk density, organic matter content, total C and N) as mangrove peat in our study sites. Ingrowth cores were installed in each of the cored holes formed during sampling of root biomass. At each site, ingrowth cores were deployed vertically into the soil to a depth of 45 cm and retrieved one year later (March 2019). Root growth within the ingrowth core was used to estimate annual root production (g m-2 yr-1) in the shallow root zone across all mangrove sites. After collection, ingrowth cores were processed individually using the same protocol as for root biomass. Turnover rate of fine roots in the shallow root zone was calculated as root productivity divided by root biomass at all sites. Root decomposition experiments were initiated in January 2018 at each site using the mesh bag (1-mm2; 10 x 40 cm) technique. Live roots were initially extracted by coring, rinsed with water to remove soil particles, air-dried for 24 hours, and then placed inside bags. Mesh bags were divided into two 20-cm depth sections (0-20 cm, 20-40 cm), each one containing 5-6 g of fresh root material from each site with an equal mixture of three root size classes: 1-4, 4-8, and 8-12 mm. A total of 18 bags were buried in the soil within two sampling points at each site. Bags were retrieved from sampling points after 190, 358, and 541 days of incubation, oven-dried at 60°C to a constant mass and weighed to estimate root mass loss. Decay rates of mangrove roots were calculated for all sites using the negative exponential model, Mt = M0 e-kt, where Mt = the percentage of dry root mass remaining at time t, M0 = original dry root mass, and k = decay constant (Nye 1961; Olson 1963). Data collection for this package is complete.

    See also, related pre-Irma root data (https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-fce&identifier=1277).

    References:
    Medina-Calderon, J.H., J.E. Mancera-Pineda, E. Castañeda-Moya, and V.H. Rivera-Monroy. 2021. Hydroperiod and salinity interactions control mangrove root dynamics in a karstic oceanic island in the Caribbean Sea (San Andres, Colombia). Frontiers in Marine Science 7: 598132. https://doi.org/10.3389/fmars.2020.598132.
    Cormier, N., R.R. Twilley, C.K. Ewel, and K.W. Krauss. 2015. Fine root productivity varies along nitrogen and phosphorus gradients in high-rainfall mangrove forests of Micronesia. Hydrobiologia 750, 69-87.
    Castañeda-Moya, E., R.R. Twilley, V.H. Rivera-Monroy, B.D. Marx, C. Coronado-Molina, and S.M.L. Ewe. 2011. Patterns of root dynamics in mangrove forests along environmental gradients in the Florida Coastal Everglades, USA. Ecosystems 14: 1178-1195. https://doi.org/10.1007/s10021-011-9473-3.
    Vogt, K.A., D.J. Vogt, J. Bloomfield. 1998. Analysis of some direct and indirect methods for estimating root biomass and production of forests at an ecosystem level. Plant Soil 200:71–89.
    Olson, J. S. 1963. Energy storage and the balance of producers and decomposers in ecological systems. Ecology 44: 322-331
    Nye, P. H. 1961. Organic matter and nutrient cycles under moist tropical forest. Plant and Soil 13: 333-346.
  • Geographic Coverage
    Bounding Coordinates
    FCE LTER Site SRS4
    N: 25.40976421, S: 25.40976421, E: -80.96431016, W: -80.96431016

    FCE LTER Site SRS5
    N: 25.37702258, S: 25.37702258, E: -81.03234716, W: -81.03234716

    FCE LTER Site SRS6
    N: 25.36462994, S: 25.36462994, E: -81.07794623, W: -81.07794623

    FCE LTER Site SRS7
    N: 25.352825, S: 25.352825, E: -81.114339, W: -81.114339

  • Attributes
    • Data Table:   Root biomass post-Irma
      Attribute Name:
      SITENAME
      Attribute Label:
      SITENAME
      Attribute Definition:
      sitename
      Storage Type:
      string
      Measurement Scale:
      SRS4= site
      SRS5= site
      SRS6= site
      SRS7= site
      Missing Value Code:
       

      Attribute Name:
      Sampling_period
      Attribute Label:
      Sampling_period
      Attribute Definition:
      Sampling period
      Storage Type:
      string
      Measurement Scale:
      Post-Irma= Post-Irma
      Missing Value Code:
       

      Attribute Name:
      Method_collection
      Attribute Label:
      Method_collection
      Attribute Definition:
      Method of collection
      Storage Type:
      string
      Measurement Scale:
      Root cores= Root cores
      Missing Value Code:
       

      Attribute Name:
      Month
      Attribute Label:
      Month
      Attribute Definition:
      Calendar month
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Precision: 1
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Year
      Attribute Label:
      Year
      Attribute Definition:
      Year
      Storage Type:
      dateTime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      Plot_ID
      Attribute Label:
      Plot_ID
      Attribute Definition:
      Plot ID
      Storage Type:
      string
      Measurement Scale:
      1= 1
      2= 2
      Missing Value Code:
       

      Attribute Name:
      Point
      Attribute Label:
      Point
      Attribute Definition:
      Sampling point
      Storage Type:
      string
      Measurement Scale:
      A= A
      B= B
      C= C
      D= D
      Missing Value Code:
       

      Attribute Name:
      Position
      Attribute Label:
      Position
      Attribute Definition:
      Position
      Storage Type:
      string
      Measurement Scale:
      Inland= Inland
      Missing Value Code:
       

      Attribute Name:
      Location
      Attribute Label:
      Location
      Attribute Definition:
      Sampling depth
      Storage Type:
      string
      Measurement Scale:
      0-45cm= Shallow root zone
      Missing Value Code:
       

      Attribute Name:
      Core_ID
      Attribute Label:
      Core_ID
      Attribute Definition:
      Core ID
      Storage Type:
      integer
      Measurement Scale:
      Units: number
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      Root_size
      Attribute Label:
      Root_size
      Attribute Definition:
      Root size diameter
      Storage Type:
      string
      Measurement Scale:
      <2mm= Fine roots
      2-5mm= Small roots
      >5mm= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_size_class
      Attribute Label:
      Root_size_class
      Attribute Definition:
      Root size class
      Storage Type:
      string
      Measurement Scale:
      Fine= Fine roots
      Small= Small roots
      Coarse= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_Biomass
      Attribute Label:
      Root_Biomass
      Attribute Definition:
      Root biomass
      Storage Type:
      float
      Measurement Scale:
      Units: gramPerMeterSquared
      Precision: 0.1
      Number Type: real
      Missing Value Code:
      -9999.0 (missing value)


    • Data Table:   Root Production post-Irma
      Attribute Name:
      SITENAME
      Attribute Label:
      SITENAME
      Attribute Definition:
      sitename
      Storage Type:
      string
      Measurement Scale:
      SRS4= site
      SRS5= site
      SRS6= site
      SRS7= site
      Missing Value Code:
       

      Attribute Name:
      Sampling_period
      Attribute Label:
      Sampling_period
      Attribute Definition:
      Sampling period
      Storage Type:
      string
      Measurement Scale:
      Post-Irma= Post-Irma
      Missing Value Code:
       

      Attribute Name:
      Method_collection
      Attribute Label:
      Method_collection
      Attribute Definition:
      Method of collection
      Storage Type:
      string
      Measurement Scale:
      Ingrowth cores= Ingrowth cores
      Missing Value Code:
       

      Attribute Name:
      Month
      Attribute Label:
      Month
      Attribute Definition:
      Calendar month
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Precision: 1
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Year
      Attribute Label:
      Year
      Attribute Definition:
      Year
      Storage Type:
      dateTime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      Plot_ID
      Attribute Label:
      Plot_ID
      Attribute Definition:
      Plot ID
      Storage Type:
      string
      Measurement Scale:
      1= 1
      2= 2
      Missing Value Code:
       

      Attribute Name:
      Point
      Attribute Label:
      Point
      Attribute Definition:
      Sampling point
      Storage Type:
      string
      Measurement Scale:
      A= A
      B= B
      C= C
      D= D
      Missing Value Code:
       

      Attribute Name:
      Position
      Attribute Label:
      Position
      Attribute Definition:
      Position
      Storage Type:
      string
      Measurement Scale:
      Inland= Inland
      Missing Value Code:
       

      Attribute Name:
      Location
      Attribute Label:
      Location
      Attribute Definition:
      Sampling depth
      Storage Type:
      string
      Measurement Scale:
      0-45cm= Shallow root zone
      Missing Value Code:
       

      Attribute Name:
      Core_ID
      Attribute Label:
      Core_ID
      Attribute Definition:
      Core ID
      Storage Type:
      integer
      Measurement Scale:
      Units: number
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      Root_size
      Attribute Label:
      Root_size
      Attribute Definition:
      Root size diameter
      Storage Type:
      string
      Measurement Scale:
      <2mm= Fine roots
      2-5mm= Small roots
      >5mm= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_size_class
      Attribute Label:
      Root_size_class
      Attribute Definition:
      Root size class
      Storage Type:
      string
      Measurement Scale:
      Fine= Fine roots
      Small= Small roots
      Coarse= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_Production
      Attribute Label:
      Root_Production
      Attribute Definition:
      Root Production
      Storage Type:
      float
      Measurement Scale:
      Units: gramPerMeterSquaredPerYear
      Precision: 0.1
      Number Type: real
      Missing Value Code:
      -9999.0 (missing value)


    • Data Table:   Root Turnover post-Irma
      Attribute Name:
      SITENAME
      Attribute Label:
      SITENAME
      Attribute Definition:
      sitename
      Storage Type:
      string
      Measurement Scale:
      SRS4= site
      SRS5= site
      SRS6= site
      SRS7= site
      Missing Value Code:
       

      Attribute Name:
      Sampling_period
      Attribute Label:
      Sampling_period
      Attribute Definition:
      Sampling period
      Storage Type:
      string
      Measurement Scale:
      Post-Irma= Post-Irma
      Missing Value Code:
       

      Attribute Name:
      Plot_ID
      Attribute Label:
      Plot_ID
      Attribute Definition:
      Plot ID
      Storage Type:
      string
      Measurement Scale:
      1= 1
      2= 2
      Missing Value Code:
       

      Attribute Name:
      Point
      Attribute Label:
      Point
      Attribute Definition:
      Sampling point
      Storage Type:
      string
      Measurement Scale:
      A= A
      B= B
      C= C
      D= D
      Missing Value Code:
       

      Attribute Name:
      Location
      Attribute Label:
      Location
      Attribute Definition:
      Sampling depth
      Storage Type:
      string
      Measurement Scale:
      0-45cm= Shallow root zone
      Missing Value Code:
       

      Attribute Name:
      Root_size
      Attribute Label:
      Root_size
      Attribute Definition:
      Root size diameter
      Storage Type:
      string
      Measurement Scale:
      <2mm= Fine roots
      2-5mm= Small roots
      >5mm= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_size_class
      Attribute Label:
      Root_size_class
      Attribute Definition:
      Root size class
      Storage Type:
      string
      Measurement Scale:
      Fine= Fine roots
      Small= Small roots
      Coarse= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_Turnover
      Attribute Label:
      Root_Turnover
      Attribute Definition:
      Root Turnover
      Storage Type:
      float
      Measurement Scale:
      Units: perYear
      Precision: 0.001
      Number Type: real
      Missing Value Code:
       


    • Data Table:   Root CNP post-Irma
      Attribute Name:
      SITENAME
      Attribute Label:
      SITENAME
      Attribute Definition:
      sitename
      Storage Type:
      string
      Measurement Scale:
      SRS4= site
      SRS5= site
      SRS6= site
      SRS7= site
      Missing Value Code:
       

      Attribute Name:
      Sampling_period
      Attribute Label:
      Sampling_period
      Attribute Definition:
      Sampling period
      Storage Type:
      string
      Measurement Scale:
      Post-Irma= Post-Irma
      Missing Value Code:
       

      Attribute Name:
      Plot_ID
      Attribute Label:
      Plot_ID
      Attribute Definition:
      Plot ID
      Storage Type:
      string
      Measurement Scale:
      1= 1
      2= 2
      Missing Value Code:
       

      Attribute Name:
      Point
      Attribute Label:
      Point
      Attribute Definition:
      Sampling point
      Storage Type:
      string
      Measurement Scale:
      A= A
      B= B
      C= C
      D= D
      Missing Value Code:
       

      Attribute Name:
      Position
      Attribute Label:
      Position
      Attribute Definition:
      Position
      Storage Type:
      string
      Measurement Scale:
      Inland= Inland
      Missing Value Code:
       

      Attribute Name:
      Location
      Attribute Label:
      Location
      Attribute Definition:
      Sampling depth
      Storage Type:
      string
      Measurement Scale:
      0-45cm= Shallow root zone
      Missing Value Code:
       

      Attribute Name:
      Root_size (mm)
      Attribute Label:
      Root_size (mm)
      Attribute Definition:
      Root size diameter
      Storage Type:
      string
      Measurement Scale:
      <2mm= Fine roots
      2-5mm= Small roots
      >5mm= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_size_class
      Attribute Label:
      Root_size_class
      Attribute Definition:
      Root size class
      Storage Type:
      string
      Measurement Scale:
      Fine= Fine roots
      Small= Small roots
      Coarse= Coarse roots
      Missing Value Code:
       

      Attribute Name:
      Root_Total_C
      Attribute Label:
      Root_Total_C
      Attribute Definition:
      Root Total C content
      Storage Type:
      float
      Measurement Scale:
      Units: milligramPerGram
      Precision: 0.01
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_Total_N
      Attribute Label:
      Root_Total_N
      Attribute Definition:
      Root Total N content
      Storage Type:
      float
      Measurement Scale:
      Units: milligramPerGram
      Precision: 0.01
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_Total_P
      Attribute Label:
      Root_Total_P
      Attribute Definition:
      Root Total P content
      Storage Type:
      float
      Measurement Scale:
      Units: milligramPerGram
      Precision: 0.01
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_C_N
      Attribute Label:
      Root_C_N
      Attribute Definition:
      Root_C:N ratio
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Precision: 0.1
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_N_P
      Attribute Label:
      Root_N_P
      Attribute Definition:
      Root_N:P ratio
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Precision: 0.1
      Number Type: real
      Missing Value Code:
       


    • Data Table:   Root decomposition post-Irma
      Attribute Name:
      SITENAME
      Attribute Label:
      SITENAME
      Attribute Definition:
      sitename
      Storage Type:
      string
      Measurement Scale:
      SRS4= site
      SRS5= site
      SRS6= site
      SRS7= site
      Missing Value Code:
       

      Attribute Name:
      Sampling_period
      Attribute Label:
      Sampling_period
      Attribute Definition:
      Sampling period
      Storage Type:
      string
      Measurement Scale:
      Post-Irma= Post-Irma
      Missing Value Code:
       

      Attribute Name:
      Experiment
      Attribute Label:
      Experiment
      Attribute Definition:
      Experiment ID
      Storage Type:
      string
      Measurement Scale:
      Root Decomposition= Root Decomposition
      Missing Value Code:
       

      Attribute Name:
      Method_collection
      Attribute Label:
      Method_collection
      Attribute Definition:
      Method of collection
      Storage Type:
      string
      Measurement Scale:
      Mesh bags= Mesh bags
      Missing Value Code:
       

      Attribute Name:
      Collection_date
      Attribute Label:
      Collection_date
      Attribute Definition:
      Collection date
      Storage Type:
      dateTime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      Point
      Attribute Label:
      Point
      Attribute Definition:
      Sampling point
      Storage Type:
      string
      Measurement Scale:
      1= 1
      2= 2
      Missing Value Code:
       

      Attribute Name:
      Location
      Attribute Label:
      Location
      Attribute Definition:
      Sampling depth
      Storage Type:
      string
      Measurement Scale:
      0-20cm= Shallow root zone
      20-40cm= Shallow root zone
      Missing Value Code:
       

      Attribute Name:
      Incubation_days
      Attribute Label:
      Incubation_days
      Attribute Definition:
      Incubation days
      Storage Type:
      string
      Measurement Scale:
      190= 190
      358= 358
      541= 541
      Missing Value Code:
       

      Attribute Name:
      Mesh_bag_ID
      Attribute Label:
      Mesh_bag_ID
      Attribute Definition:
      Mesh bag ID
      Storage Type:
      integer
      Measurement Scale:
      Units: number
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      Replicate_bags
      Attribute Label:
      Replicate_bags
      Attribute Definition:
      Replicate bags
      Storage Type:
      string
      Measurement Scale:
      a= a
      b= b
      c= c
      Missing Value Code:
       

      Attribute Name:
      Root_mass_remaining
      Attribute Label:
      Root_mass_remaining
      Attribute Definition:
      Root mass remaining
      Storage Type:
      float
      Measurement Scale:
      Units: percent
      Precision: 0.1
      Number Type: real
      Missing Value Code:
      -9999.0 (missing value)

      Attribute Name:
      Root_decay_Kd
      Attribute Label:
      Root_decay_Kd
      Attribute Definition:
      Root decay rate Kd value
      Storage Type:
      float
      Measurement Scale:
      Units: perDay
      Precision: 0.0001
      Number Type: real
      Missing Value Code:
      -9999.0000 (missing value)


    • Data Table:   Root Decomposition CNP post-Irma
      Attribute Name:
      SITENAME
      Attribute Label:
      SITENAME
      Attribute Definition:
      sitename
      Storage Type:
      string
      Measurement Scale:
      SRS4= site
      SRS5= site
      SRS6= site
      SRS7= site
      Missing Value Code:
       

      Attribute Name:
      Sampling_period
      Attribute Label:
      Sampling_period
      Attribute Definition:
      Sampling period
      Storage Type:
      string
      Measurement Scale:
      Post-Irma= Post-Irma
      Missing Value Code:
       

      Attribute Name:
      Experiment
      Attribute Label:
      Experiment
      Attribute Definition:
      Experiment ID
      Storage Type:
      string
      Measurement Scale:
      Roo Decomposition= Root Decomposition
      Missing Value Code:
       

      Attribute Name:
      Method_collection
      Attribute Label:
      Method_collection
      Attribute Definition:
      Method of collection
      Storage Type:
      string
      Measurement Scale:
      Mesh bags= Mesh bags
      Missing Value Code:
       

      Attribute Name:
      Collection_date
      Attribute Label:
      Collection_date
      Attribute Definition:
      Collection date
      Storage Type:
      dateTime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      Point
      Attribute Label:
      Point
      Attribute Definition:
      Sampling point
      Storage Type:
      string
      Measurement Scale:
      Initial= Initial
      1= 1
      2= 2
      Missing Value Code:
       

      Attribute Name:
      Location
      Attribute Label:
      Location
      Attribute Definition:
      Sampling depth
      Storage Type:
      string
      Measurement Scale:
      Initial= Initial
      0-20cm= Shallow root zone
      20-40cm= Shallow root zone
      Missing Value Code:
       

      Attribute Name:
      Incubation_days
      Attribute Label:
      Incubation_days
      Attribute Definition:
      Incubation days
      Storage Type:
      string
      Measurement Scale:
      0= 0
      190= 190
      358= 358
      541= 541
      Missing Value Code:
       

      Attribute Name:
      Replicate_bag
      Attribute Label:
      Replicate_bag
      Attribute Definition:
      Replicate bags
      Storage Type:
      string
      Measurement Scale:
      a= a
      b= b
      c= c
      Missing Value Code:
       

      Attribute Name:
      Root_Total_C
      Attribute Label:
      Root_Total_C
      Attribute Definition:
      Root Total C content
      Storage Type:
      float
      Measurement Scale:
      Units: milligramPerGram
      Precision: 0.01
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_Total_N
      Attribute Label:
      Root_Total_N
      Attribute Definition:
      Root Total N content
      Storage Type:
      float
      Measurement Scale:
      Units: milligramPerGram
      Precision: 0.01
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_Total_P
      Attribute Label:
      Root_Total_P
      Attribute Definition:
      Root Total P content
      Storage Type:
      float
      Measurement Scale:
      Units: milligramPerGram
      Precision: 0.01
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_C_N
      Attribute Label:
      Root_C:N
      Attribute Definition:
      Root_C:N ratio
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Precision: 0.1
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      Root_N_P
      Attribute Label:
      Root_N:P
      Attribute Definition:
      Root_N:P ratio
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Precision: 0.1
      Number Type: real
      Missing Value Code:
       


  • Methods
    Method Step

    Description
    Mangrove root biomass, productivity, and decomposition in the shallow (0-45 cm depth) root zone were estimated at Florida Coastal Everglades Long Term Ecological Research (FCE-LTER) Program Shark River (SRS4, SRS5, SRS6, SRS7) mangrove sites during 2018-2019 following Hurricane Irma’s impacts. Root biomass was estimated at all sites in March 2018 with a PVC coring device (10.2 cm diameter x 45 cm length) using the same sampling protocol previously published for the study area (Castañeda-Moya et al. 2011). After collection, root cores were processed individually and initially rinsed with water through a 1-mm screen mesh to remove soil particles. Live roots were separated manually based on their buoyancy, turgor, and color (Castañeda-Moya et al. 2011; Cormier et al. 2015; Medina-Calderon et al. 2021). Live roots were further sorted into three size diameter classes including fine (<2 mm), small (2-5 mm), and coarse (5-20 mm). Roots greater than 20 mm in diameter were not included in this study due to sampling limitations (i.e., core area). All root samples were oven-dried at 60°C to a constant mass and weighed to estimate root biomass (g m-2). Root productivity was estimated with the ingrowth core technique (Vogt et al., 1998) using the same sampling protocol previously published for the study area (Castañeda-Moya et al. 2011). Ingrowth cores (10.2 cm diameter x 45 cm length) were made of synthetic material (3 mm mesh) and filled with root-free commercial sphagnum peat moss. This material has similar soil properties (i.e., bulk density, organic matter content, total C and N) as mangrove peat in our study sites. Ingrowth cores were installed in each of the cored holes formed during sampling of root biomass. At each site, ingrowth cores were deployed vertically into the soil to a depth of 45 cm and retrieved one year later (March 2019). Root growth within the ingrowth core was used to estimate annual root production (g m-2 yr-1) in the shallow root zone across all mangrove sites. After collection, ingrowth cores were processed individually using the same protocol as for root biomass. Turnover rate of fine roots in the shallow root zone was calculated as root productivity divided by root biomass at all sites. Root decomposition experiments were initiated in January 2018 at each site using the mesh bag (1-mm2; 10 x 40 cm) technique. Live roots were initially extracted by coring, rinsed with water to remove soil particles, air-dried for 24 hours, and then placed inside bags. Mesh bags were divided into two 20-cm depth sections (0-20 cm, 20-40 cm), each one containing 5-6 g of fresh root material from each site with an equal mixture of three root size classes: 1-4, 4-8, and 8-12 mm. A total of 18 bags were buried in the soil within two sampling points at each site. Bags were retrieved from sampling points after 190, 358, and 541 days of incubation, oven-dried at 60°C to a constant mass and weighed to estimate root mass loss. Decay rates of mangrove roots were calculated for all sites using the negative exponential model, Mt = M0 e-kt, where Mt = the percentage of dry root mass remaining at time t, M0 = original dry root mass, and k = decay constant (Nye 1961; Olson 1963).


  • Distribution and Intellectual Rights
    Online distribution
    https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1278/1/0e806e3373e494bcc79ee823c2205849
    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
    Root production, Root turnover rates, Belowground allocation, P availability, Root biomass, FCE LTER, LTER, Florida Coastal Everglades LTER, primary production, mangroves, primary production
  • Data Table and Format
    Data Table:  Root biomass post-Irma

    Entity Name:
    FCE_1278_Root_Biomass_post-Irma
    Entity Description:
    Root biomass post-Irma
    Object Name:
    FCE_1278_Root_Biomass_post-Irma.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    96

    Data Table:  Root Production post-Irma

    Entity Name:
    FCE_1278_Root_Production_post-Irma
    Entity Description:
    Root Production post-Irma
    Object Name:
    FCE_1278_Root_Production_post-Irma.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    96

    Data Table:  Root Turnover post-Irma

    Entity Name:
    FCE_1278_Root_Turnover_post-Irma
    Entity Description:
    Root Turnover post-Irma
    Object Name:
    FCE_1278_Root_Turnover_post-Irma.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    44

    Data Table:  Root CNP post-Irma

    Entity Name:
    FCE_1278_Root_CNP_post-Irma
    Entity Description:
    Root CNP post-Irma
    Object Name:
    FCE_1278_Root_CNP_post-Irma.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    48

    Data Table:  Root decomposition post-Irma

    Entity Name:
    FCE_1278_Root_Decomposition_post-Irma
    Entity Description:
    Root decomposition post-Irma
    Object Name:
    FCE_1278_Root_Decomposition_post-Irma.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    144

    Data Table:  Root Decomposition CNP post-Irma

    Entity Name:
    FCE_1278_Root_Decomposition_CNP_post-Irma
    Entity Description:
    Root Decomposition CNP post-Irma
    Object Name:
    FCE_1278_Root_Decomposition_CNP_post-Irma.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    60

  • Project permits
    National Park Service scientific research and collecting permit EVER-2017-SCI-0054