Dataset title:  The Salinity and phosphorus mesocosm experiment in freshwater sawgrass wetlands: Determining the trajectory and capacity of freshwater wetland ecosystems to recover carbon losses from saltwater intrusion (FCE LTER), Florida, USA from 2015 to 2018

Dataset ID:  doi:10.6073/pasta/a269722318964f74cb5cabf87f0d3fb3
Dataset Creator

	Name:		Dong Yoon Lee
	Organization:	SFWMD
	Email:		dlee@sfwmd.gov

	Name:		Ben Wilson
	Organization:	FIU
	Email:		bwils034@fiu.edu

	Name:		Shelby Servais
	Organization:	FIU
	Email:		sserv005.fiu.edu

	Name:		Viviana Mazzei
	Organization:	FIU
	Email:		vmazz001@fiu.edu

	Name:		John Kominoski
	Organization:	FIU
	Email:		jkominos@fiu.edu


Dataset Abstract

	
  In experimental wetland mesocosms located at Florida Bay Interagency
  Science Center, Key Largo, Florida, researchers continuously added
  salinity (approximately 6.9 g salt d-1) and phosphorus ( approximately
  0.5 mg P d-1) to Cladium jamaicense peat monoliths from February 2015
  to February 2017 and quantified changes in carbon partitioning.
  Several studies, focusing on the functional roles of marsh, soil,
  periphyton and microbe in the sawgrass-peat ecosystem, summarized
  detailed methodology and results (Wilson et al. 2019; Servais et al.
  2019; Mazzei et al. in press). Briefly, salinity was increased (~10
  ppt) and phosphorus was added (0.45 mg P d-1) to simulate four
  treatment effects (n = 24 plots): i) freshwater and no-added
  phosphorus, ii) freshwater and added phosphorus, iii) saltwater and
  no-added phosphorus, and iv) saltwater and added phosphorus. Upon the
  termination of manipulation study (early February 2017), containers
  holding water and peat-sawgrass cores were drained, rinsed, and
  refilled with only freshwater without any added nutrient and salt.
  Then, we experimentally restored freshwater to previous treatment and
  control mesocosms from February 2017 to June 2018 to examine the
  capacity of wetland ecosystems to recover carbon losses from saltwater
  intrusion. Note that FCE1226_Water_quality.csv summarizes water
  quality during both the manipulation and restoration study; however,
  all other files in the Dataset Title section only summarize results
  from the restoration study. Detailed methodology is provided below.



Geographic Coverage


	Bounding Coordinates

		Geographic description:	Florida Bay Interagency Science Center, Key Largo, Florida
		West bounding coordinate:	-80.45188
		East bounding coordinate:	-80.45188
		North bounding coordinate:	25.08522
		South bounding coordinate:	25.08522
	



Temporal Coverage

	Start Date:  2015-02-01
	End Date:  2018-06-01


Data Table

	Entity Name:  Water quality data
	Entity Description:  Water quality data
	Object Name:  FCE1226_Water_quality.csv

	Data Format

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

	Attributes

		Attribute Name:  Binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  N_umol_pw
		Attribute Label:  
		Attribute Definition:  Nitrate+Nitrite as N in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NO3_umol_pw
		Attribute Label:  
		Attribute Definition:  Nitrate as NO3-N; NO3-N  = N+N  -  NO2-N in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NO2_umol_pw
		Attribute Label:  
		Attribute Definition:  Nitrite as N, Dissolved in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NH4_umol_pw
		Attribute Label:  
		Attribute Definition:  Ammonium as N in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  SRP_umol_pw
		Attribute Label:  
		Attribute Definition:  Soluble Reactive Phosphorus in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  DOC_umol_pw
		Attribute Label:  
		Attribute Definition:  Dissolved organic carbon in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  N_umol_sw
		Attribute Label:  
		Attribute Definition:  Nitrate+Nitrite as N in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NO3_umol_sw
		Attribute Label:  
		Attribute Definition:  Nitrate as NO3-N; NO3-N  = N+N  -  NO2-N in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NO2_umol_sw
		Attribute Label:  
		Attribute Definition:  Nitrite as N, Dissolved in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NH4_umol_sw
		Attribute Label:  
		Attribute Definition:  Ammonium as N in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  SRP_umol_sw
		Attribute Label:  
		Attribute Definition:  Soluble Reactive Phosphorus in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  DOC_umol_sw
		Attribute Label:  
		Attribute Definition:  Dissolved organic carbon in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  TN_umol_sw
		Attribute Label:  
		Attribute Definition:  Nitrogen, Total in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  TP_umol_sw
		Attribute Label:  
		Attribute Definition:  Phosphorus, Total in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  TOC_umol_sw
		Attribute Label:  
		Attribute Definition:  Total Organic Carbon in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerLiter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  salinity_pw
		Attribute Label:  
		Attribute Definition:  Salinity in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		practicalSalinityUnit
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  conductivity_pw
		Attribute Label:  
		Attribute Definition:  Conductivity in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:		siemenPerCentimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  pH_pw
		Attribute Label:  
		Attribute Definition:  pH in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  temp_pw
		Attribute Label:  
		Attribute Definition:  Temperature in porewater
		Storage Type:  float
		Measurement Scale: 
			Units:  celsius
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  salinity_sw
		Attribute Label:  
		Attribute Definition:  Salinity in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		practicalSalinityUnit
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  conductivity_sw
		Attribute Label:  
		Attribute Definition:  Conductivity in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:		siemenPerCentimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  pH_sw
		Attribute Label:  
		Attribute Definition:  pH in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  temp_sw
		Attribute Label:  
		Attribute Definition:  Temperature in surface water
		Storage Type:  float
		Measurement Scale: 
			Units:  celsius
			Number Type:  real
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Aboveground sawgrass biomass data
	Entity Description:  Aboveground sawgrass biomass data
	Object Name:  FCE1226_Aboveground_sawgrass_biomass.csv

	Data Format

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

	Attributes

		Attribute Name:  Binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-aboveground sawgrass monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Totalbiomass
		Attribute Label:  
		Attribute Definition:  Total aboveground sawgrass biomass dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		gramPerMeterSquare
			Number Type:  real
		Missing Value Code: NA  (Missing)




Data Table

	Entity Name:  Ecosystem carbon flux during saltwater intrusion experiment
	Entity Description:  Ecosystem carbon flux during saltwater intrusion experiment
	Object Name:  FCE1226_Gas_flux_manipulation.csv

	Data Format

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

	Attributes

		Attribute Name:  Binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Light
		Attribute Label:  
		Attribute Definition:  Light treatment; 0_full_Sun: no cover; 1_shade: 1 layer of mesh shade; 2_shade: 2 layers of mesh shade; 3_Dark: dark cover
		Storage Type:  string
		Measurement Scale: 
			0_full_Sun= no cover
			1_shade= 1 layer of shade mesh
			2_shade= 2 layers of shade mesh
			3_Dark= dark cover
		Missing Value Code: 


		Attribute Name:  NEP
		Attribute Label:  
		Attribute Definition:  Net Ecosystem Production
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerMeterSquaredPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  GEP
		Attribute Label:  
		Attribute Definition:  Gross Ecosystem Production
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerMeterSquaredPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  ER
		Attribute Label:  
		Attribute Definition:  Ecosystem Respiration
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerMeterSquaredPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Ecosystem carbon flux study during freshwater restoration experiment
	Entity Description:  Ecosystem carbon flux study during freshwater restoration experiment
	Object Name:  FCE1226_Gas_flux_restoration.csv

	Data Format

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

	Attributes

		Attribute Name:  Binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FWX= freshwater
			FWP= freshwater and phosphorus
			SWX= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Light
		Attribute Label:  
		Attribute Definition:  Light treatment; 0_full_Sun: no cover; 1_shade: 1 layer of mesh shade; 2_shade: 2 layers of mesh shade; 3_Dark: dark cover
		Storage Type:  string
		Measurement Scale: 
			0_full_Sun= no cover
			1_shade= 1 layer of shade mesh
			2_shade= 2 layers of shade mesh
			3_Dark= dark cover
		Missing Value Code: 


		Attribute Name:  T_air
		Attribute Label:  
		Attribute Definition:  Temperature in air
		Storage Type:  float
		Measurement Scale: 
			Units:  celsius
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  T_soil
		Attribute Label:  
		Attribute Definition:  Temperature in soil 5cm deep
		Storage Type:  float
		Measurement Scale: 
			Units:  celsius
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  T_box_i
		Attribute Label:  
		Attribute Definition:  Temperature inside incubation chamber at the beginning of incubation (0_full_Sun treatment)
		Storage Type:  float
		Measurement Scale: 
			Units:  celsius
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  T_box_f
		Attribute Label:  
		Attribute Definition:  Temperature inside incubation chamber at the end of incubation (3_Dark treatment)
		Storage Type:  float
		Measurement Scale: 
			Units:  celsius
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  PAR
		Attribute Label:  
		Attribute Definition:  Photosynthetically active radiation measured on the top of incubation chamber
		Storage Type:  float
		Measurement Scale: 
			Units:		microEinsteinPerMeterSquaredPerSecond
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  CO2_ppm
		Attribute Label:  
		Attribute Definition:  The slope of CO2 change over ~3 min incubation for each light level. When CO2_ppm < 0, CO2 was being uptaked (i.e., net photosynthesis)
		Storage Type:  float
		Measurement Scale: 
			Units:		partsPerMillionPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Atmpresure
		Attribute Label:  
		Attribute Definition:  Atmospheric pressure
		Storage Type:  float
		Measurement Scale: 
			Units:  kilopascal
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  GEP_ppm
		Attribute Label:  
		Attribute Definition:  Gross ecosystem productivity calculated by subtracting CO2_ppm at 0, 1, and 2 light levels from CO2_ppm at the dark
		Storage Type:  float
		Measurement Scale: 
			Units:		partsPerMillionPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  GEP_g
		Attribute Label:  
		Attribute Definition:  Gross ecosystem photosynthesis; Coefficients: Chamber volume: 312.97 L, plot area: 0.2032 m2; Equation: [GEP = (GEP{ppm/min} x Chamber volume{L} x kPa / 101.325 atm) / (0.08206 {atm x L / mol / K} x (T + 273.15))]
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerMeterSquaredPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  NEE_g
		Attribute Label:  
		Attribute Definition:  Net ecosystem exchange
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerMeterSquaredPerMinute
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Note
		Attribute Label:  
		Attribute Definition:  Notes about observations
		Storage Type:  string
		Measurement Scale: 
			Notes about observations
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Sawgrass litter decomposition and the elemental (carbon, nitrogen, and phosphorus) composition of sawgrass litter
	Entity Description:  Sawgrass litter decomposition and the elemental (carbon, nitrogen, and phosphorus) composition of sawgrass litter
	Object Name:  FCE1226_Litter_decomposition_element.csv

	Data Format

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

	Attributes

		Attribute Name:  Bin_num
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= salt water
			SWP= salt water and phosphorus
		Missing Value Code: 


		Attribute Name:  Rep
		Attribute Label:  
		Attribute Definition:  Replicate
		Storage Type:  string
		Measurement Scale: 
			A= Replicate A
			B= Replicate B
		Missing Value Code: 


		Attribute Name:  Type
		Attribute Label:  
		Attribute Definition:  Vegetation type
		Storage Type:  string
		Measurement Scale: 
			sawgrass= Vegetation type = sawgrass
			cellulose= Vegetation type = cellulose
			wood= Vegetation type = wood
		Missing Value Code: 


		Attribute Name:  InitDW
		Attribute Label:  
		Attribute Definition:  Initial dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  TotalDW
		Attribute Label:  
		Attribute Definition:  Total dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_P
		Attribute Label:  
		Attribute Definition:  Total_P
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_C
		Attribute Label:  
		Attribute Definition:  Total_C
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_N
		Attribute Label:  
		Attribute Definition:  Total_N
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_P_ug_g
		Attribute Label:  
		Attribute Definition:  Total_P_ug_g
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_C_mg_g
		Attribute Label:  
		Attribute Definition:  Total_C_mg_g
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_N_mg_g
		Attribute Label:  
		Attribute Definition:  Total_N_mg_g
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Sawgrass leaf elemental analysis data
	Entity Description:  Sawgrass leaf elemental analysis data
	Object Name:  FCE1226_Sawgrass_leaf_element.csv

	Data Format

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

	Attributes

		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date of sample
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Bin_num
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-aboveground sawgrass monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Total_P_ug_g
		Attribute Label:  
		Attribute Definition:  Total P in aboveground sawgrass dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_C_mg_g
		Attribute Label:  
		Attribute Definition:  Total C in aboveground sawgrass dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_N_mg_g
		Attribute Label:  
		Attribute Definition:  Total N in aboveground sawgrass dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_C
		Attribute Label:  
		Attribute Definition:  Percent P in aboveground sawgrass leaf
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_N
		Attribute Label:  
		Attribute Definition:  Percent C in aboveground sawgrass leaf
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_P
		Attribute Label:  
		Attribute Definition:  Percent N in aboveground sawgrass leaf
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Root elemental analysis data
	Entity Description:  Root elemental analysis data
	Object Name:  FCE1226_Root_biomass_element.csv

	Data Format

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

	Attributes

		Attribute Name:  Binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Fine_dry
		Attribute Label:  
		Attribute Definition:  Gram of fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_dry
		Attribute Label:  
		Attribute Definition:  Gram of coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Volume
		Attribute Label:  
		Attribute Definition:  Sum of volumes (cm^3) in three vertical sections of soils
		Storage Type:  float
		Measurement Scale: 
			Units:		centimeterCubed
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  W_D1
		Attribute Label:  
		Attribute Definition:  Top soil volume dimension (cm); Depth1: 0-7.5cm
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  D_D1
		Attribute Label:  
		Attribute Definition:  Top soil volume dimension (cm)
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  W_D2
		Attribute Label:  
		Attribute Definition:  Mid soil volume dimension (cm); Depth2: 7.5-15cm
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  D_D2
		Attribute Label:  
		Attribute Definition:  Mid soil volume dimension (cm)
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  W_D3
		Attribute Label:  
		Attribute Definition:  Bottom soil volume dimension (cm); Depth3: 15-25cm
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  D_D3
		Attribute Label:  
		Attribute Definition:  Bottom soil volume dimension (cm)
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Fine_P_ug_g
		Attribute Label:  
		Attribute Definition:  Total Phosphorus in fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_P_ug_g
		Attribute Label:  
		Attribute Definition:  Total Phosphorus in coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Fine_C_mg_g
		Attribute Label:  
		Attribute Definition:  Total Carbon in fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_C_mg_g
		Attribute Label:  
		Attribute Definition:  Total Carbon in coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Fine_N_mg_g
		Attribute Label:  
		Attribute Definition:  Total Nitrogen in fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_N_mg_g
		Attribute Label:  
		Attribute Definition:  Total Nitrogen in coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Fine_P_percent
		Attribute Label:  
		Attribute Definition:  Percent P in fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_P_percent
		Attribute Label:  
		Attribute Definition:  Percent P in coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Fine_C_percent
		Attribute Label:  
		Attribute Definition:  Percent C in fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_C_percent
		Attribute Label:  
		Attribute Definition:  Percent C in coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Fine_N_percent
		Attribute Label:  
		Attribute Definition:  Percent N in fine roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Coarse_N_percent
		Attribute Label:  
		Attribute Definition:  Percent N in coarse roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_P_ug_g
		Attribute Label:  
		Attribute Definition:  Total Phosphorus in roots
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_C_mg_g
		Attribute Label:  
		Attribute Definition:  Total Carbon in roots
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_N_mg_g
		Attribute Label:  
		Attribute Definition:  Total Nitrogen in roots
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_P
		Attribute Label:  
		Attribute Definition:  Percent P in roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_C
		Attribute Label:  
		Attribute Definition:  Percent C in roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  Total_N
		Attribute Label:  
		Attribute Definition:  Percent N in roots
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Belowground_biomass_manipulation
	Entity Description:  Belowground_biomass_manipulation
	Object Name:  FCE1226_Belowground_biomass_manipulation.csv

	Data Format

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

	Attributes

		Attribute Name:  Bin
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-aboveground sawgrass monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  0to7cm
		Attribute Label:  
		Attribute Definition:  Gram of fine roots in 0-7cm soil column taken at end of experiment
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  7to15cm
		Attribute Label:  
		Attribute Definition:  Gram of fine roots in 7-15cm soil column taken at end of experiment
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)


		Attribute Name:  15to25cm
		Attribute Label:  
		Attribute Definition:  Gram of fine roots in 15-25cm soil column taken at end of experiment
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (missing)




Data Table

	Entity Name:  Soil bulk density and the elemental (carbon, nitrogen, and phosphorus) composition of sawgrass peat
	Entity Description:  Soil bulk density and the elemental (carbon, nitrogen, and phosphorus) composition of sawgrass peat
	Object Name:  FCE1226_Soil_density_element.csv

	Data Format

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

	Attributes

		Attribute Name:  Bin_num
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Depth
		Attribute Label:  
		Attribute Definition:  Depth (1: 0-7.5cm, 2: 7.5-15cm, 3: 15-25cm)
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  natural
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Volume
		Attribute Label:  
		Attribute Definition:  Volumes
		Storage Type:  float
		Measurement Scale: 
			Units:		centimeterCubed
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Height
		Attribute Label:  
		Attribute Definition:  Height of soil sample
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Width
		Attribute Label:  
		Attribute Definition:  Width of soil sample
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Length
		Attribute Label:  
		Attribute Definition:  Length of soil sample
		Storage Type:  float
		Measurement Scale: 
			Units:  centimeter
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Wet_wt
		Attribute Label:  
		Attribute Definition:  Wet weight
		Storage Type:  float
		Measurement Scale: 
			Units:  kilogram
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Dry_wt
		Attribute Label:  
		Attribute Definition:  Dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:  gram
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Total_P_ug_g
		Attribute Label:  
		Attribute Definition:  Percent P in soil
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Total_C_mg_g
		Attribute Label:  
		Attribute Definition:  Percent C in soil
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Total_N_mg_g
		Attribute Label:  
		Attribute Definition:  Percent N in soil
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Total_P
		Attribute Label:  
		Attribute Definition:  Total P in soil dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Total_C
		Attribute Label:  
		Attribute Definition:  Total C in soil dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Total_N
		Attribute Label:  
		Attribute Definition:  Total N in soil dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramPerGram
			Number Type:  real
		Missing Value Code: NA  (Not collected)


		Attribute Name:  Bulk_density
		Attribute Label:  
		Attribute Definition:  Bulk density taken at end of experiment
		Storage Type:  float
		Measurement Scale: 
			Units:		gramPerCentimeterCubed
			Number Type:  real
		Missing Value Code: NA  (Not collected)




Data Table

	Entity Name:  Sawgrass Aboveground Net Primary Production
	Entity Description:  Sawgrass Aboveground Net Primary Production
	Object Name:  FCE1226_ANPP.csv

	Data Format

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

	Attributes

		Attribute Name:  binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FW= freshwater
			FWP= freshwater and phosphorus
			SW= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  ANPP
		Attribute Label:  
		Attribute Definition:  Aboveground net primary production
		Storage Type:  float
		Measurement Scale: 
			Units:		gramPerMeterSquaredPerYear
			Number Type:  real
		Missing Value Code: 




Data Table

	Entity Name:  Soil methane flux study during saltwater intrusion experiment
	Entity Description:  Soil methane flux study during saltwater intrusion experiment
	Object Name:  FCE1226_SoilCH4_R.csv

	Data Format

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

	Attributes

		Attribute Name:  binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FWX= freshwater
			FWP= freshwater and phosphorus
			SWX= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  SoilCH4
		Attribute Label:  
		Attribute Definition:  Soil methane flux
		Storage Type:  float
		Measurement Scale: 
			Units:		nanomolesPerMeterSquaredPerSecond
			Number Type:  real
		Missing Value Code: NA  (Not collected)




Data Table

	Entity Name:  Soil CO2 flux study during saltwater intrusion experiment
	Entity Description:  Soil CO2 flux study during saltwater intrusion experiment
	Object Name:  FCE1226_SoilCO2_R.csv

	Data Format

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

	Attributes

		Attribute Name:  binnum
		Attribute Label:  
		Attribute Definition:  Bin number (a container used for incubating sawgrass-soil monolith)
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  treatment
		Attribute Label:  
		Attribute Definition:  FW: freshwater, FWP: freshwater and phosphorus, SW: saltwater, SWP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			FWX= freshwater
			FWP= freshwater and phosphorus
			SWX= saltwater
			SWP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  SoilCO2
		Attribute Label:  
		Attribute Definition:  Soil carbon dioxide flux
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerMeterSquaredPerSecond
			Number Type:  real
		Missing Value Code: NA  (Missing)




Data Table

	Entity Name:  Extracellular enzyme activity on root litter and bulk soil during saltwater intrusion experiment
	Entity Description:  Extracellular enzyme activity on root litter and bulk soil during saltwater intrusion experiment
	Object Name:  FCE1226_Enzyme.csv

	Data Format

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

	Attributes

		Attribute Name:  days
		Attribute Label:  
		Attribute Definition:  number of days since the start of the experiment when the enzymes were sampled
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  natural
		Missing Value Code: 


		Attribute Name:  nut_trt
		Attribute Label:  
		Attribute Definition:  treatement conditons (np - no phosphorus, p - with phosphorus)
		Storage Type:  string
		Measurement Scale: 
			np= no phosphorus
			p= with phosphorus
		Missing Value Code: 


		Attribute Name:  water_trt
		Attribute Label:  
		Attribute Definition:  treatment conditions (fresh and salt)
		Storage Type:  string
		Measurement Scale: 
			fresh= freshwater
			salt= saltwater
		Missing Value Code: 


		Attribute Name:  trt_label
		Attribute Label:  
		Attribute Definition:  treatment label (fresh.P, fhresh, salt.P, salt)
		Storage Type:  string
		Measurement Scale: 
			fresh= freshwater
			fresh.P= freshwater with P
			salt= saltwater
			salt.P= saltwater with P
		Missing Value Code: 


		Attribute Name:  phos
		Attribute Label:  
		Attribute Definition:  phosphatase activity (umol/g/h)
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerGramPerHour
			Number Type:  real
		Missing Value Code: NA  (Missing)


		Attribute Name:  ars
		Attribute Label:  
		Attribute Definition:  arylsulfatase activity (umol/g/h)
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerGramPerHour
			Number Type:  real
		Missing Value Code: NA  (Missing)


		Attribute Name:  bg
		Attribute Label:  
		Attribute Definition:  beta-1,4-glucosidsase activity (umol/g/h)
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerGramPerHour
			Number Type:  real
		Missing Value Code: NA  (Missing)


		Attribute Name:  cel
		Attribute Label:  
		Attribute Definition:  beta-1,4-cellobiosidase activity (umol/g/h)
		Storage Type:  float
		Measurement Scale: 
			Units:		micromolesPerGramPerHour
			Number Type:  real
		Missing Value Code: NA  (Missing)




Data Table

	Entity Name:  Elemental analysis of periphyton cores
	Entity Description:  Elemental analysis of periphyton cores
	Object Name:  FCE1226_PeriphytonCores_Chemistry.csv

	Data Format

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

	Attributes

		Attribute Name:  Sampling_Event
		Attribute Label:  
		Attribute Definition:  Sampling period
		Storage Type:  string
		Measurement Scale: 
			Sampling period
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Periphyton sample collection date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Mesocosm
		Attribute Label:  
		Attribute Definition:  Mesocosm identification number
		Storage Type:  string
		Measurement Scale: 
			Mesocosm identification number
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  F: freshwater, FP: freshwater and phosphorus, S: saltwater, SP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			F= freshwater
			FP= freshwater and phosphorus
			S= saltwater
			SP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  TP
		Attribute Label:  
		Attribute Definition:  Periphyton total phosphorus concentration in micrograms per gram of periphyton
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (data not collected)


		Attribute Name:  TN
		Attribute Label:  
		Attribute Definition:  Periphyton total nitrogen concentration in micrograms per gram of periphyton
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (data not collected)


		Attribute Name:  TC
		Attribute Label:  
		Attribute Definition:  Periphyton total carbon concentration in micrograms per gram of periphyton
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (data not collected)


		Attribute Name:  Mineral_Content
		Attribute Label:  
		Attribute Definition:  Periphyton percent inorganic weight of total dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (data not collected)


		Attribute Name:  Organic_Content
		Attribute Label:  
		Attribute Definition:  Periphyton percent organic weight of total dry weight
		Storage Type:  float
		Measurement Scale: 
			Units:		percent
			Number Type:  real
		Missing Value Code: NA  (data not collected)


		Attribute Name:  Chla
		Attribute Label:  
		Attribute Definition:  Periphyton chlorophyll-a concentration in micrograms per unit of ash-free dry mass
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramPerGram
			Number Type:  real
		Missing Value Code: NA  (data not collected)




Data Table

	Entity Name:  Periphyton Accumulation Rates
	Entity Description:  Periphyton Accumulation Rates
	Object Name:  FCE1226_PeriphytonPlates_AccumulationRates.csv

	Data Format

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

	Attributes

		Attribute Name:  Sampling_Event
		Attribute Label:  
		Attribute Definition:  Sampling period
		Storage Type:  string
		Measurement Scale: 
			Sampling period
		Missing Value Code: 


		Attribute Name:  Deploy_Date
		Attribute Label:  
		Attribute Definition:  Settlement plate deployment date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Retrieve_Date
		Attribute Label:  
		Attribute Definition:  Settlement plate retrieval data
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Mesocosm
		Attribute Label:  
		Attribute Definition:  Mesocosm identification number
		Storage Type:  string
		Measurement Scale: 
			Mesocosm identification number
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  F: freshwater, FP: freshwater and phosphorus, S: saltwater, SP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			F= freshwater
			FP= freshwater and phosphorus
			S= saltwater
			SP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Total_Mass_Accumulation_Rate
		Attribute Label:  
		Attribute Definition:  Periphyton total mass accumulation rate on settlement plates (clear acrylic) in milligrams per meter squared per day
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramsPerMeterSquaredPerDay
			Number Type:  real
		Missing Value Code: NA  (not collected)


		Attribute Name:  Organic_Mass_Accumulation_Rate
		Attribute Label:  
		Attribute Definition:  Periphyton organic mass accumulation rate on settlement plates (clear acrylic) in milligrams per meter squared per day
		Storage Type:  float
		Measurement Scale: 
			Units:		milligramsPerMeterSquaredPerDay
			Number Type:  real
		Missing Value Code: NA  (not collected)


		Attribute Name:  Chla_Accumulation_Rate
		Attribute Label:  
		Attribute Definition:  Periphyton chlorophyll-a accumulation rate on settlement plates (clear acrylic) in micrograms per meter squared per day
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramsPerMeterSquaredPerDay
			Number Type:  real
		Missing Value Code: NA  (not collected)


		Attribute Name:  Chla_Accumulation_Rate_AFDM
		Attribute Label:  
		Attribute Definition:  Periphyton chlorophyll-a accumulation rate on settlement plates (clear acrylic) in micrograms per gram of periphyton ash-free dry mass per day
		Storage Type:  float
		Measurement Scale: 
			Units:		microgramsPerMeterSquaredPerDay
			Number Type:  real
		Missing Value Code: NA  (not collected)




Data Table

	Entity Name:  Relative Abundance of Diatoms on PeriphytonPlates
	Entity Description:  Relative Abundance of Diatoms on PeriphytonPlates
	Object Name:  FCE1226_PeriphytonPlates_DiatomRelAbund.csv

	Data Format

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

	Attributes

		Attribute Name:  Sampling_Event
		Attribute Label:  
		Attribute Definition:  sampling period
		Storage Type:  string
		Measurement Scale: 
			sampling period
		Missing Value Code: 


		Attribute Name:  Date
		Attribute Label:  
		Attribute Definition:  Sampling date
		Storage Type:  date
		Measurement Scale: 
		Missing Value Code: 


		Attribute Name:  Mesocosm
		Attribute Label:  
		Attribute Definition:  Mesocosm identification number
		Storage Type:  string
		Measurement Scale: 
			Mesocosm identification number
		Missing Value Code: 


		Attribute Name:  Treatment
		Attribute Label:  
		Attribute Definition:  F: freshwater, FP: freshwater and phosphorus, S: saltwater, SP: saltwater and phosphorus
		Storage Type:  string
		Measurement Scale: 
			F= freshwater
			FP= freshwater and phosphorus
			S= saltwater
			SP= saltwater and phosphorus
		Missing Value Code: 


		Attribute Name:  Species
		Attribute Label:  
		Attribute Definition:  Diatom species
		Storage Type:  string
		Measurement Scale: 
			Diatom species
		Missing Value Code: 


		Attribute Name:  Abundance
		Attribute Label:  
		Attribute Definition:  relative abundance
		Storage Type:  float
		Measurement Scale: 
			Units:  dimensionless
			Number Type:  real
		Missing Value Code: 




Methods



	Method Step 

		Description 

			
  Dataset: 
			
            PeriphytonCores_Chemistry
          
			
			
  Ten mL periphyton mat subsamples were collected bimonthly, starting in
  April 2015, from each mesocosm using a plastic syringe. In the lab,
  the mat samples were placed in a 500-mL beaker and homogenized with
  deionized water (DI) water to a periphyton slurry with a minimum
  volume of 200-mL. The beaker was placed on a stir plate to facilitate
  continuous mixing while the slurry was subsampled for biomass, chl-a
  total carbon (TC), total nitrogen (TN), and total phosphorus (TP)
  analyses. The biomass and chl-a subsamples were analyzed using the
  same methods described for the settlement plate samples. The TP
  subsample was dried at 80 degrees C and pulverized with a mortar and
  pestle. We processed a known amount of each subsample and used
  colorimetric analysis to estimate TP concentration, expressed as
  micrograms gram AFDM, following the methods of Solorzano and Sharp
  (1980). TC and TN subsamples were ground down to a fine powder by
  mortar and pestle, dried at 60 degrees C, and analyzed for total C and
  N content using a Flash 1112 elemental analyzer (CE Elantech,
  Lakewood, New Jersey, USA) following standard procedures.

			
            PeriphytonPlates_AccumulationRates
          
			
  Clear, acrylic settlement plates (approximately 104 square
  centimeters) were deployed in each mesocosm to measure periphyton
  biomass and chlorophyll-a accumulation rates. The settlement plates
  were incubated on the soil surface of the mesocosm for two months to
  allow periphyton mats in the mesocosms to colonize the plates. At the
  end of the two-month incubation period, settlement plates were
  retrieved and transported to the laboratory, where they were scrapped
  clean using a razor blade and deionized water. Settlement plates were
  sterilized using a bleach solution and redeployed the following month.
  This was done quarterly from March 2015 to April 2016 for a total of 4
  settlement plate samples per mesocosm over the duration of the
  experiment. The material scraped from the settlement plates was
  collected in a beaker and homogenized with deionized water (DI) water
  to a minimum volume of 200-mL. The beaker was placed on a stir plate
  to facilitate continuous mixing while the slurry was subsampled for
  biomass, chlorophyll-a, and diatom analysis. The biomass subsample was
  placed in a drying oven at 80 degrees C for at least 48 h to obtain a
  dry mass (g) measurement and then in a furnace where it was combusted
  at 500 degrees C for 1 h to obtain the ash (mineral) mass (g). We
  calculated ash-free dry mass (AFDM) by the loss-on-ignition method as
  the difference between the ash mass and the total dry mass. The chl-a
  subsample was filtered onto Whatman 25-mm diameter glass fiber filter
  (GFF) paper, frozen, and later subjected to 48 h 90 percent cold
  acetone extraction at 20 degrees C. Chl-a concentrations were
  determined using a Gildford FLUORO IV fluorometer (Gilford Instrument,
  Oberlin, Ohio, USA; excitation 435 nm; emission 667 nm). AFDM and
  chl-a accumulation rates (mgPerMeterSquaredPerDay) were calculated by
  standardizing AFDM and chl-a values by the area of the settlement
  plates and the number of days incubated.

			
            PeriphytonPlates_DiatomRelAbund
          
			
  A subsample of the periphyton material scrapped from the settlement
  plates was used to analyze diatom species composition. Diatom
  subsamples were cleaned of mineral debris and organic matter using the
  sulfuric acid oxidation methods prescribed by Hasle and Fryxell
  (1970). We pipetted a known volume of cleaned diatom sample onto a
  glass coverslip, permanently mounted it on a microscope slide with
  Naphrax (PhycoTech Inc., St. Joseph, Michigan, USA) mounting medium,
  and viewed the diatoms under a compound light microscope (Axioskop 2;
  Zeiss, Thornwood, New York) equipped with differential interference
  contrast and a digital camera (Leica DFC425, Wetzlar, Germany). We
  counted at least 500 diatom valves along random transects at 600×
  magnification under oil immersion and identified them to the species
  level. Raw diatom counts were converted to relative abundance by
  standardizing the number of valves counted for each species by the
  total number of valves counted. We chose to analyze periphyton diatom
  species composition from the settlement plates rather than samples
  taken from the mesocosm soil surface because, as diatoms are counted
  and identified from cleaned (oxidized) samples, testing treatment
  effects on the diatom assemblage using established mats would have
  been confounded by the presence of dead diatom frustules; using
  settlement plates allowed us to better pick up diatom community
  response to treatments over time.



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