Dataset title: Sediment and nutrient deposition and plant-soil phosphorus interactions associated with Hurricane Irma (2017) in mangroves of the Florida Coastal Everglades (FCE LTER), Florida
Dataset ID: doi:10.6073/pasta/2eb6663175051c21427304e75d0840fb
Dataset Creator
Name: Edward Castaneda
Organization: Florida International University
Email: ecastane@fiu.edu
Name: Victor Rivera-Monroy
Organization: Louisiana State University
Email: vhrivera@lsu.edu
Dataset Abstract
We quantified how Hurricane Irma influenced soil nutrient pools,
vertical accretion, and plant phosphorus (P) uptake after its passage
across the Florida Coastal Everglades in September 2017. Mangrove leaf
litter data from three years (2008, 2014, 2018) were selected for each
site at Shark River estuary to identify species-specific foliar P
responses post-Wilma’s impact in 2005 and immediate post-Irma’s impact
in 2017. We also monitored porewater SRP concentrations in the Shark
River mangrove sites to evaluate the effect of Hurricane Irma on soil
chemistry. The data in this data package were used in the following
paper: Castañeda-Moya, E., V.H. Rivera-Monroy, R.M. Chambers, X. Zhao,
L. Lamb-Wotton, A. Gorsky, E.E. Gaiser, T.G. Troxler, J.S. Kominoski,
and M. Hiatt. 2020. Hurricanes fertilize mangrove forests in the Gulf
of Mexico (Florida Everglades, USA). PNAS. In Press.
Geographic Coverage
Bounding Coordinates
Geographic description: FCE LTER Site SRS5
West bounding coordinate: -81.032
East bounding coordinate: -81.032
North bounding coordinate: 25.377
South bounding coordinate: 25.377
Geographic description: FCE LTER Site SRS6
West bounding coordinate: -81.078
East bounding coordinate: -81.078
North bounding coordinate: 25.365
South bounding coordinate: 25.365
Geographic description: Site SRS7 - mouth of Shark River estuary
West bounding coordinate: -81.114
East bounding coordinate: -81.114
North bounding coordinate: 25.353
South bounding coordinate: 25.353
Geographic description: WSC-8 in Harney River
West bounding coordinate: -81.06
East bounding coordinate: -81.06
North bounding coordinate: 25.423
South bounding coordinate: 25.423
Geographic description: WSC-9 in Harney River
West bounding coordinate: -81.1
East bounding coordinate: -81.1
North bounding coordinate: 25.431
South bounding coordinate: 25.431
Geographic description: WSC-10 in Harney River
West bounding coordinate: -81.132
East bounding coordinate: -81.132
North bounding coordinate: 25.417
South bounding coordinate: 25.417
Geographic description: WSC-11 in Broad River
West bounding coordinate: -81.082
East bounding coordinate: -81.082
North bounding coordinate: 25.5
South bounding coordinate: 25.5
Geographic description: WSC-12 in Broad River
West bounding coordinate: -81.108
East bounding coordinate: -81.108
North bounding coordinate: 25.487
South bounding coordinate: 25.487
Geographic description: WSC-13 in Broad River
West bounding coordinate: -81.144
East bounding coordinate: -81.144
North bounding coordinate: 25.475
South bounding coordinate: 25.475
Geographic description: Taylor Ridge area
West bounding coordinate: -80.639
East bounding coordinate: -80.639
North bounding coordinate: 25.191
South bounding coordinate: 25.191
Temporal Coverage
Start Date: 2008-01-01
End Date: 2018-12-31
Data Table
Entity Name: Sediment and nutrient deposition from Hurricane Irma in mangrove forests of the Florida Coastal Everglades
Entity Description: Sediment and nutrient deposition from Hurricane Irma in mangrove forests of the Florida Coastal Everglades
Object Name: FCE1227_Irma_Sediment.txt
Data Format
Number of Header Lines: 1
Attribute Orientation: column
Field Delimiter: ,
Number of Records:
Attributes
Attribute Name: SITENAME
Attribute Label:
Attribute Definition: Name of mangrove site
Storage Type: string
Measurement Scale:
Name of mangrove site
Missing Value Code:
Attribute Name: Date
Attribute Label:
Attribute Definition: Collection date
Storage Type: date
Measurement Scale:
Missing Value Code:
Attribute Name: Transect_Distance
Attribute Label:
Attribute Definition: Sampling point along transect
Storage Type: float
Measurement Scale:
Units: meter
Number Type: whole
Missing Value Code:
Attribute Name: Core_Rep
Attribute Label:
Attribute Definition: core A or B within a sampling point along transect
Storage Type: string
Measurement Scale:
core A or B within a sampling point along transect
Missing Value Code:
Attribute Name: Soil_Layer
Attribute Label:
Attribute Definition: storm sediments or surface soils
Storage Type: string
Measurement Scale:
Storm layer= storm sediments
Surface soils= surface layer
Missing Value Code:
Attribute Name: Soil_Layer_Depth
Attribute Label:
Attribute Definition: Depth of soil layer sampled
Storage Type: float
Measurement Scale:
Units: centimeter
Number Type: real
Missing Value Code:
Attribute Name: Bulk_Density
Attribute Label:
Attribute Definition: soil dried mass per unit volume of soil calculated by grams of dried mass divided by volume (cm3) of wet soil
Storage Type: float
Measurement Scale:
Units: gramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Organic_Matter_content
Attribute Label:
Attribute Definition: percent of organic matter in soil (loss-on-ignition technique - % ashed-free dry weight)
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Total_C
Attribute Label:
Attribute Definition: C concentration (C content from elemental analyzer divided by the bulk density of the layer)
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Total_Organic_C
Attribute Label:
Attribute Definition: organic C concentration (C content from elemental analyzer divided by the bulk density of the layer)
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Total_Inorganic_C
Attribute Label:
Attribute Definition: inorganic C concentration (C content from elemental analyzer divided by the bulk density of the layer)
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Total_N
Attribute Label:
Attribute Definition: nitrogen concentration
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Total_P
Attribute Label:
Attribute Definition: phosphorus concentration (A standard curve (Linear relationship) was used to convert absorbance readings to nutrient concentrations: y = ax+b.)
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code:
Attribute Name: Soil_N_P_ratio
Attribute Label:
Attribute Definition: nutrient N:Pratio (this is an atomic mass ratio of N and P concentrations)
Storage Type: float
Measurement Scale:
Units: dimensionless
Number Type: real
Missing Value Code:
Attribute Name: Ca_bound_P
Attribute Label:
Attribute Definition: P Fraction: A standard curve (Linear relationship) was used to convert absorbance readings to nutrient concentrations: y = ax+b.
Storage Type: float
Measurement Scale:
Units: milligramsPerCubicCentimeter
Number Type: real
Missing Value Code: -9999 (Sample was not analyzes)
Data Table
Entity Name: TP concentrations in leaf litter of mangrove species along Shark River estuary in southwestern Florida Coastal Everglades
Entity Description: TP concentrations in leaf litter of mangrove species along Shark River estuary in southwestern Florida Coastal Everglades
Object Name: FCE1227_LeafLitter.txt
Data Format
Number of Header Lines: 1
Attribute Orientation: column
Field Delimiter: ,
Number of Records:
Attributes
Attribute Name: SITENAME
Attribute Label:
Attribute Definition: name of sampling location
Storage Type: string
Measurement Scale:
name of sampling location
Missing Value Code:
Attribute Name: Year
Attribute Label:
Attribute Definition: year of data collection
Storage Type: date
Measurement Scale:
Missing Value Code:
Attribute Name: Month
Attribute Label:
Attribute Definition: month of data collection
Storage Type: string
Measurement Scale:
month of data collection
Missing Value Code:
Attribute Name: Magrove_species
Attribute Label:
Attribute Definition: name of species
Storage Type: string
Measurement Scale:
name of species
Missing Value Code:
Attribute Name: Total_P_leaf_litter
Attribute Label:
Attribute Definition: concentration of TP
Storage Type: float
Measurement Scale:
Units: microgramsPerGram
Number Type: real
Missing Value Code: -9999 (no data)
Attribute Name: Relative_Canopy_P_Retranslocation
Attribute Label:
Attribute Definition: percent P retranslocation
Storage Type: float
Measurement Scale:
Units: dimensionless
Number Type: real
Missing Value Code: -9999 (no data)
Data Table
Entity Name: Porewater Soluble Reactive Phosphorus (SRP) concentrations in Shark River mangrove sites from 2008 to 2018
Entity Description: Porewater Soluble Reactive Phosphorus (SRP) concentrations in Shark River mangrove sites from 2008 to 2018
Object Name: FCE1227_Porewater.txt
Data Format
Number of Header Lines: 1
Attribute Orientation: column
Field Delimiter: ,
Number of Records:
Attributes
Attribute Name: SITENAME
Attribute Label:
Attribute Definition: Name of collection site
Storage Type: string
Measurement Scale:
Name of collection site
Missing Value Code:
Attribute Name: Date
Attribute Label:
Attribute Definition: Date of collection
Storage Type: date
Measurement Scale:
Missing Value Code:
Attribute Name: Season
Attribute Label:
Attribute Definition: Wet for June-November and dry for December-May
Storage Type: string
Measurement Scale:
Wet for June-November and dry for December-May
Missing Value Code:
Attribute Name: Plot
Attribute Label:
Attribute Definition: Plot 1 or 2 within the site
Storage Type: string
Measurement Scale:
Plot 1 or 2 within the site
Missing Value Code:
Attribute Name: Subplot
Attribute Label:
Attribute Definition: subplot indicates which subdivision of the two plots
Storage Type: string
Measurement Scale:
subplot indicates which subdivision of the two plots
Missing Value Code:
Attribute Name: Depth
Attribute Label:
Attribute Definition: collection depth in the soil
Storage Type: float
Measurement Scale:
Units: centimeter
Number Type: natural
Missing Value Code:
Attribute Name: Porewater_PO4
Attribute Label:
Attribute Definition: SRP concentrations; A standard curve (Linear relationship) was used to convert absorbance readings to nutrient concentrations: y = ax+b. Values below detection limit are considered zero.
Storage Type: float
Measurement Scale:
Units: micromolesPerLiter
Number Type: real
Missing Value Code:
Methods
Method Step
Description
1. Soil Sediment Cores
We used a comprehensive spatial sampling design (i.e., transect sites
and discrete sites) to compare gradients in storm deposits and
nutrient inputs associated with Hurricane Irma across mangrove sites
in the FCE. We measured the thickness, distribution, and
physico-chemical properties (bulk density, OM content, total C, N, P,
TOC, TIC, and Ca-bound P) of storm sediments using duplicate cores
collected at different distances along transect sites and discrete
sites across the FCE. All soil-sediment cores were collected with a
piston core (2.5 cm diameter x 15 cm length) and sectioned into two
layers, storm sediments (variable depths) and surface (top 10 cm)
mangrove soils, and the depth of each layer was registered. Each layer
was stored separately in pre-labeled 50 mL centrifuge tubes, placed on
ice, and transported to the laboratory for further analyses using
standard protocols. For the transect data, we used a randomized block
ANOVA design to test for differences in physico-chemical variables
among sites, distance along transects, and layers (soil vs. sediment).
Data collected within the discrete sites were analyzed separately with
a two-way ANOVA, with sites and layers as main factors.
Duplicate soil-sediment cores were collected with a piston corer and
sectioned into two layers, storm sediments (variable depths) and
surface (top 10 cm) mangrove soils, and the depth of each layer was
registered. Each layer was stored separately in pre-labeled 50 mL
centrifuge tubes, placed on ice, and transported to the laboratory for
further analyses.
2. Total P in mangrove leaf litter:
Mangrove litterfall dynamics have been monitored in all Shark River
sites (SRS-4, SRS-5, SRS-6) since January 2001 using the same
collection method stated in Castañeda-Moya et al. 2013 (metadata:
LT_PP_Castaneda_001.v6_eml). Briefly, litterfall was collected monthly
at all sites (10 baskets per site) using permanent 0.25 m2 wooden
baskets supported approximately 1.3 m above the soil surface and lined
with 1 mm mesh screening. Litterfall from each basket was sorted,
dried, and weighed by leaf species, reproductive parts by species, and
woody material. For this study, leaf litter data from three years
(2008, 2014, 2018) were selected for each site to identify
species-specific foliar P responses post-Wilma’s impact in 2005 and
immediate post-Irma’s impact in 2017. Monthly leaf litter samples were
analyzed separately by species for all years after grinding with a
Wiley Mill to pass through a 40-µm mesh screen. Total leaf litter P
was extracted with 1 N HCl after combustion in a furnace at 550 ºC
(Aspila et al. 1976) and determined by colorimetric analysis using a
segmented flow analysis Flow Solution IV autoanalyzer (OI Analytical).
Relative (%) canopy P retranslocation was calculated using P
concentrations of green and senescent (leaf litter) leaves for all
mangrove species present at SRS-6. We used an unbalanced factorial
ANOVA to evaluate differences in foliar P content of senescent leaves
among mangrove species and sites. All pairwise comparisons were
performed with Tukey’s honestly significant difference (HSD).
Statistical analyses were performed with PROC MIXED (SAS Institute,
Cary, NC, USA).
3. Porewater Soluble Reactive Phosphorus
(SRP):
Porewater nutrients have been monitored in all Shark River mangrove
sites since December 2000 using the same collection method stated in
Castañeda-Moya et al. 2013. For this study, we used SRP concentrations
for all sites from 2008 to 2018. Porewater samples were taken with a
porewater sipper in the middle of each subplot at all sites.
Concentrations of orthophosphate (i.e., SRP) were determined using
either a spectrophotometer, a Lachat auto analyzer or an OI analytical
autoanalyzer. Apha standard methods (1992) were used to derive the
nutrient concentrations.
Two permanent plots (20x20 m) were established in each mangrove site,
which where subdivided into four 10x10 m subplots. In the middle of
each subplot porewater samples for nutrient and sulfide analyses have
been collected repeatedly 2-3 times a year over 19 years next to
physical data. The null hypothesis is that there is no significant
difference between the mangrove sites that are monitored.
4. Quality Control on all Datasets:
Dataset is inspected by PI for QA/QC; descriptive statistics, normal
distribution plots, standard validation checks for negative numbers,
graphs to detect potential outliers Nutrient dataset QA/QC performed
during analysis of samples; samples with 5% between lab replicates
were redone; data was graphed to check for outliers
5. References cited:
Castañeda-Moya,
E., R.R. Twilley and V.H. Rivera-Monroy. 2013. Allocation of biomass
and net primary productivity of mangrove forests along environmental
gradients in the Florida Coastal Everglades, USA. Forest Ecology and
Management 307: 226-241
.
https://doi.org/10.1016/j.foreco.2013.07.011
Method Step
Description
This method step describes provenance-based metadata as specified in the LTER EML Best Practices.
This provenance metadata does not contain entity specific information.
Dataset Contact
Position: Information Manager
Organization: FCE LTER
Email: fcelter@fiu.edu