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

Dataset ID:  doi:10.6073/pasta/2ea2d47e2de9de450a9fa270c67733bf
Dataset Creator

	Name:		Edward Castañeda-Moya
	Organization:	Florida International University
	Email:		Edward.Castaneda@miamidade.gov

	Name:		Elena Solohin
	Organization:	Florida International University
	Email:		esolohin@fiu.edu

	Name:		John Kominoski
	Organization:	Florida International University
	Email:		jkominos@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:		https://fcelter.fiu.edu


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

		Geographic description:	FCE LTER Site SRS4
		West bounding coordinate:	-80.96431016
		East bounding coordinate:	-80.96431016
		North bounding coordinate:	25.40976421
		South bounding coordinate:	25.40976421
	
		Geographic description:	FCE LTER Site SRS5
		West bounding coordinate:	-81.03234716
		East bounding coordinate:	-81.03234716
		North bounding coordinate:	25.37702258
		South bounding coordinate:	25.37702258
	
		Geographic description:	FCE LTER Site SRS6
		West bounding coordinate:	-81.07794623
		East bounding coordinate:	-81.07794623
		North bounding coordinate:	25.36462994
		South bounding coordinate:	25.36462994
	
		Geographic description:	FCE LTER Site SRS7
		West bounding coordinate:	-81.114339
		East bounding coordinate:	-81.114339
		North bounding coordinate:	25.352825
		South bounding coordinate:	25.352825
	



Temporal Coverage

	Start Date:  2018
	End Date:  2019


Data Table

	Entity Name:  FCE_1278_Root_Biomass_post-Irma
	Entity Description:  Root biomass post-Irma
	Object Name:  FCE_1278_Root_Biomass_post-Irma.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:  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

	Entity Name:  FCE_1278_Root_Production_post-Irma
	Entity Description:  Root Production post-Irma
	Object Name:  FCE_1278_Root_Production_post-Irma.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:  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

	Entity Name:  FCE_1278_Root_Turnover_post-Irma
	Entity Description:  Root Turnover post-Irma
	Object Name:  FCE_1278_Root_Turnover_post-Irma.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:  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

	Entity Name:  FCE_1278_Root_CNP_post-Irma
	Entity Description:  Root CNP post-Irma
	Object Name:  FCE_1278_Root_CNP_post-Irma.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:  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

	Entity Name:  FCE_1278_Root_Decomposition_post-Irma
	Entity Description:  Root decomposition post-Irma
	Object Name:  FCE_1278_Root_Decomposition_post-Irma.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:  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

	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

	Data Format

		Number of Header Lines:  1
		Attribute Orientation:  column
		Field Delimiter:  ,
		Number of Records:  

	Attributes

		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

	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.


Dataset Keywords

	Root production
	Root turnover rates
	Belowground allocation
	P availability
	Root biomass
	FCE LTER
	LTER
	Florida Coastal Everglades LTER
	primary production
	mangroves
	primary production

Maintenance

	knb-lter-fce.1278.1: Data collection is complete; maintenance not planned.


Dataset Contact

	Name:		Edward Castañeda-Moya
	Email:		Edward.Castaneda@miamidade.gov
	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


Project permits

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