Data Package Metadata View Summary

Water soluble organic matter from Delmarva Bay soils

General Information

Data Package:

Local Identifier:

edi.869.2

Title:

Water soluble organic matter from Delmarva Bay soils

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Little is known about how hydrologic processes along the terrestrial-aquatic interface in wetland dominated landscapes influence carbon dynamics, particularly regarding soil-derived dissolved organic matter (DOM) transport and transformation. To understand the role of different soil horizons as potential sources of DOM to wetland systems, we measured water soluble organic matter (WSOM) in soil horizons collected from upland to wetland transects at four Delmarva Bay wetlands. The Delmarva Bays used in this study are located on property managed by The Nature Conservancy on the Delmarva Peninsula in the eastern United States. Transects ranged from 25 – 45 m in length beginning from a monitoring well in the wetland center to an upland monitoring well. Each transect had four points (Upland, Transition, Edge, and Wetland). Soils were sampled in the late winter (January 17 and March 10) and autumn (September 21 and November 1) of 2020. Soils were sampled by horizon to a depth of approximately 50 cm at each transect point. WSOM extracted in the laboratory was analyzed for WSOM concentration, reported as Water Soluble Organic Carbon (mg WSOC / g soil). WSOM absorbance and fluorescence data were used to calculate composition metrics, providing insight to organic matter sources and chemical characteristics. WSOM fluorescence excitation-emission matrices were evaluated using the 13 component Cory and McKnight (2005) PARAFAC model. Extracted leaf litter, surface water, and groundwater samples were collected in addition to soil samples for the purpose of comparing WSOM to DOM end-members along the Delmarva Bay terrestrial-aquatic continuum. Continuous water level data, averaged to a daily time-step, was collected over the 2020 water year (October 1, 2019 to September 30, 2020) in previously established wetland and upland monitoring wells. The hydrologic conditions (e.g. mean water level, number of saturation events, duration of saturation) at each transect point were characterized by assuming a linear water table between wetland and upland monitoring wells. Hydrologic conditions and WSOM data were used to estimate potential realized DOM release in Wetland and Upland O horizons.

Publication Date:

2022-05-16

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2019-10-01

End:

2020-11-01

People and Organizations
Contact:	Wardinski, Katherine (Virginia Tech) [ email ]
Creator:	Wardinski, Katherine (Virginia Tech)
Creator:	Scott, Durelle (Virginia Tech)
Creator:	McLaughlin, Daniel (Virginia Tech)
Creator:	Hotchkiss, Erin (Virginia Tech)
Creator:	Jones, C. Nathan (The University of Alabama)
Creator:	Strahm, Brian (Virginia Tech)

Data Entities
Data Table Name:	WSOM_Results
Description:	Results from Water Soluble Organic Matter (WSOM) extractions including soil horizon characteristics, water soluble carbon and nitrogen concentrations, fluorescence metrics, and Cory and McKnight (2005) PARAFAC loadings.
Data Table Name:	raw_waterlevel
Description:	Daily water level data at upland and wetland monitoring wells.
Data Table Name:	survey
Description:	Survey data for each transect point and monitoring well at the four wetland sites. Includes elevation relative to wetland center well, distance from wetland center well, and bottom soil horizon elevation relative to the ground surface (in meters).
Data Table Name:	DOM_Release_Studies
Description:	Data from Chow et al. (2006) and Christ and David (1996) used to determine release constants (k) in conceptual DOM release model R script.
Data Table Name:	Synoptic_GW_SW
Description:	Synoptic surface water and groundwater samples collected at the time of soil sampling.
Other Name:	1_Caculate_WaterLevel
Description:	Estimate depth to water table.
Other Name:	2_HydrologicMetrics
Description:	Calculate hydrologic metrics and plot hydrologic data.
Other Name:	3_WSOM_Plots
Description:	Generate figures to explore patterns in WSOM data.
Other Name:	4_Soil_Profile_Plots
Description:	Generate figures of soil horizons and soil colors at each transect point for the four wetland sites.
Other Name:	5_ClusterAnalysis
Description:	Perform cluster analysis on WSOM data.
Other Name:	6_Conceptual_DOM_Release_Model
Description:	Estimate DOM released from Wetland O and Upland O horizons using a simplified first order release model.
Other Name:	7_Statistics
Description:	Hypothesis testing for hydrologic metrics and WSOM data.

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/869/2/46eec6d2b8657cc3809cbd9d8c5beed3
Name:	WSOM_Results
Description:	Results from Water Soluble Organic Matter (WSOM) extractions including soil horizon characteristics, water soluble carbon and nitrogen concentrations, fluorescence metrics, and Cory and McKnight (2005) PARAFAC loadings.
Number of Records:	113
Number of Columns:	65

Table Structure

Object Name:

WSOM_Results.csv

Size:

69835 byte

Authentication:

1e27b6bbad4b3f38a719cbed5b9bbe0b Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Month

Sample_Name

wetland

station

Point

Generic_Horizon

Horizon_Subdesignation

Horizon

Munsell_Color

Hue

Value

Chroma

Percent_Silt

Percent_Clay

Percent_Sand

Texture

Horizon_Start_cm

Horizon_End_cm

Layer_Thickness_cm

Percent_Soil_Moisture

Kottkamp_bd_gpercm3

TDN_mgN_L

TDN_mgN_gsoil

NO3_mgN_L

NO3_mgN_gsoil

NPOC_mgC_L

WSOC_mgC_gsoil

Bulk_WSOC_gWSOC_m2

HIX

T/M

T/N

T/C

A/T

A/C

A/M

M/C

C/N

Abs_254nm

Abs_275nm

Abs_295nm

Abs_350nm

Abs_400nm

SUVA254_L_mgm

SSR

Percent_Protein

C2_Q2

C4_HQ

C5_SQ1

C7_SQ2

C8_Trypto

C9_SQ3

C10

C11_Q1

C12_Q3

C13_Tyrosine

Column Name:

Month

Sample_Name

wetland

station

Point

Generic_Horizon

Horizon_Subdesignation

Horizon

Munsell_Color

Hue

Value

Chroma

Percent_Silt

Percent_Clay

Percent_Sand

Texture

Horizon_Start_cm

Horizon_End_cm

Layer_Thickness_cm

Percent_Soil_Moisture

Kottkamp_bd_gpercm3

TDN_mgN_L

TDN_mgN_gsoil

NO3_mgN_L

NO3_mgN_gsoil

NPOC_mgC_L

WSOC_mgC_gsoil

Bulk_WSOC_gWSOC_m2

HIX

T/M

T/N

T/C

A/T

A/C

A/M

M/C

C/N

Abs_254nm

Abs_275nm

Abs_295nm

Abs_350nm

Abs_400nm

SUVA254_L_mgm

SSR

Percent_Protein

C2_Q2

C4_HQ

C5_SQ1

C7_SQ2

C8_Trypto

C9_SQ3

C10

C11_Q1

C12_Q3

C13_Tyrosine

Definition:

Month sample was collected

Sample name includes wetland name, transect point, and soil horizon

Wetland site identifier

Transect point identifier

Numbered transect point identifier for ease of graphing

A generic horizon assignment that excludes subordinate designations for ease of graphing

Horizon classifications including subordinate designation

Horizon without subordinate designation

Soil color as Hue Value/Chroma (e.g. 10YR 4/3)

Soil hue according to Munsell Color System

Soil value according to Munsell Color System

Soil chroma according to Munsell Color System

Percent silt determined using the hydrometer method for soil texture analysis

Percent clay determined using the hydrometer method for soil texture analysis

Percent sand determined using the hydrometer method for soil texture analysis

Soil texture determined using percent silt, clay, and sand

Top of soil horizon (depths below ground surface)

Bottom of soil horizon (depth below ground surface)

Thickness of soil horizon

Soil moisture content

Delmarva soil horizon bulk densities measured and reported by Kottkamp et al (2021)

Total dissolved nitrogen

Total dissolved nitrogen normalized to extractant volume and mass of soil extracted

Nitrate

Nitrate concentration normalized to volume of extractant and mass of soil extracted

Non-purgeable organic carbon (dissolved organic carbon)

Water soluble organic carbon concentration (Non-purgeable organic carbon normalized to volume of extractant and mass of soil extracted)

Water soluble organic carbon scaled to horizon thickness using bulk density

Peak T, Fluorescence intensity measured at Ex = 275 nm; Em = 340 nm

Peak A, Fluorescence intensity measured at Ex = 260 nm; Em = 400-460 nm

Peak C, Fluorescence intensity measured at Ex = 320-360 nm; Em = 420-460 nm

Peak M, Fluorescence intensity measured at Ex = 290-310 nm; Em = 370-410 nm

Peak N, Fluorescence intensity measured at Ex = 280 nm; Em = 370 nm

Fluorescence index (FI), Ratio of fluorescence intensity measured at Ex = 370 nm; Em = 470 nm/520 nm

Humification index (HIX), Ratio of fluorescence intensity Em = 435-480 nm/300-345 nm measured at Ex = 254 nm

Ratio of Peak T and Peak M

Ratio of Peak T and Peak N

Ratio of Peak T and Peak C

Ratio of Peak A and Peak T

Ratio of Peak A and Peak C

Ratio of Peak A and Peak M

Ratio of Peak M and Peak C

Ratio of Peak C and Peak N

Absorbance intensity at 245 nm

Absorbance intensity at 275 nm

Absorbance intensity at 295 nm

Absorbance intensity at 350 nm

Absorbance intensity at 400 nm

Specific ultraviolet absorbance at 254 nm

Spectral slope ratio (Ratio of Abs 275 nm - Abs 295 nm / Abs 350 nm - Abs 400 nm)

Percent Protein = Component 8 + Component 13 from the Cory and McKnight (2005) PARAFAC Model

Redox Index (ratio of reduced quinones to total quinones)

Percent (as decimal) loading of Component 1 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 2 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 3 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 4 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 5 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 6 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 7 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 8 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 9 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 10 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 11 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 12 from the Cory and McKnight (2005) PARAFAC model

Percent (as decimal) loading of Component 13 from the Cory and McKnight (2005) PARAFAC model

Storage Type:

string

float

string

float

Measurement Type:

nominal

ratio

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	2020-01
Definition	January 2020
Source

Code Definition

Code	2020-03
Definition	March 2020
Source

Code Definition

Code	2020-09
Definition	September 2020
Source

Code Definition

Code	2020-11
Definition	November 2020
Source

Definition

Sample name includes wetland name, transect point, and soil horizon

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Channel
Definition	Channel between Wetland 4 (QB) and an adjacent wetland (DF).
Source

Code Definition

Code	DB
Definition	Wetland 2
Source

Code Definition

Code	FF
Definition	Forested flat adjacent to Wetland 4 (QB).
Source

Code Definition

Code	ND
Definition	Wetland 1
Source

Code Definition

Code	QB
Definition	Wetland 4
Source

Code Definition

Code	TB
Definition	Wetland 3
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	KW-1W
Definition	Wetland
Source

Code Definition

Code	KW-2E
Definition	Edge
Source

Code Definition

Code	KW-3T
Definition	Transition
Source

Code Definition

Code	KW-4U
Definition	Upland
Source

Code Definition

Code	KW-CHL
Definition	Channel
Source

Code Definition

Code	KW-FF
Definition	Forested Flat
Source

Code Definition

Code	KW-LL
Definition	Leaf Litter
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0 LL
Definition	Leaf Litter
Source

Code Definition

Code	1 Wetland
Definition	Wetland
Source

Code Definition

Code	2 Edge
Definition	Edge
Source

Code Definition

Code	3 Transition
Definition	Transition
Source

Code Definition

Code	4 Upland
Definition	Upland
Source

Code Definition

Code	Channel
Definition	Channel
Source

Code Definition

Code	Forested Flat
Definition	Forested Flat
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0LL
Definition	Leaf Litter (Oi Horizon)
Source

Code Definition

Code	1O
Definition	O horizons (Oa, Oe, and O/A horizons)
Source

Code Definition

Code	2A
Definition	A horizons
Source

Code Definition

Code	3B
Definition	B horizons (Bg, Bt, Bw)
Source

Definition

Horizon classifications including subordinate designation

Definition

Horizon without subordinate designation

Definition

Soil color as Hue Value/Chroma (e.g. 10YR 4/3)

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	nan
Definition	No data available
Source

Code Definition

Code	10YR
Definition	Soil hue
Source

Code Definition

Code	2.5Y
Definition	Soil hue
Source

Code Definition

Code	2.5YR
Definition	Soil hue
Source

Code Definition

Code	7.5YR
Definition	Soil hue
Source

Unit	NA
Type	real

Unit	NA
Type	real

Unit	percent
Type	real

Unit	percent
Type	real

Unit	percent
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	nan
Definition	Data not available
Source

Code Definition

Code	Loam
Definition	Loam
Source

Code Definition

Code	Loamy Sand
Definition	Loamy Sand
Source

Code Definition

Code	Organic
Definition	Organic
Source

Code Definition

Code	Sandy Clay Loam
Definition	Sandy Clay Loam
Source

Code Definition

Code	Sandy Loam
Definition	Sandy Loam
Source

Unit	centimeter
Type	real

Unit	centimeter
Type	real

Unit	centimeter
Type	real

Unit	percent
Type	real

Unit	gramPerCentimeterCubed
Type	real

Unit	mg N / L
Type	real

Unit	mg N / g soil
Type	real

Unit	mg NO3-N / L
Type	real

Unit	mg NO3-N / g soil
Type	real

Unit	mg C / L
Type	real

Unit	mg WSOC / g soil
Type	real

Unit	g WOSC / square m
Type	real

Unit	Relative Fluorescence Units
Type	real

Unit	Relative Fluorescence Units
Type	real

Unit	Relative Fluorescence Units
Type	real

Unit	Relative Fluorescence Units
Type	real

Unit	Relative Fluorescence Units
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	1/cm
Type	real

Unit	1/cm
Type	real

Unit	1/cm
Type	real

Unit	1/cm
Type	real

Unit	1/cm
Type	real

Unit	L/mg-m
Type	real

Unit	dimensionless
Type	real

Unit	percent as decimal
Type	real

Unit	dimensionless
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Unit	percent as decimal
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/869/2/d6bf40f2bb918e5caab501b008437562
Name:	raw_waterlevel
Description:	Daily water level data at upland and wetland monitoring wells.
Number of Records:	14040
Number of Columns:	3

Table Structure

Object Name:

raw_waterlevel.csv

Size:

750628 byte

Authentication:

975444d6198ff406ffbc97f7df18a481 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Timestamp

Site_Name

waterLevel

Column Name:

Timestamp

Site_Name

waterLevel

Definition:

Timestamp

Wetland site and monitoring well name

Water level at upland and wetland monitoring wells

Storage Type:

dateTime

string

float

Measurement Type:

dateTime

nominal

ratio

Measurement Values Domain:

Format	YYYY-MM-DDThh:mm:ssZ
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	DB Upland Well 1
Definition	Upland monitoring well
Source

Code Definition

Code	DB Wetland Well Shallow
Definition	Wetland monitoring well
Source

Code Definition

Code	ND Upland Well 1
Definition	Upland monitoring well
Source

Code Definition

Code	ND Upland Well 2
Definition	Upland monitoring well
Source

Code Definition

Code	ND Wetland Well Shallow
Definition	Wetland monitoring well
Source

Code Definition

Code	QB Upland Well 1
Definition	Upland monitoring well
Source

Code Definition

Code	QB Upland Well 2
Definition	Upland monitoring well
Source

Code Definition

Code	QB Wetland Well Deep
Definition	Wetland monitoring well
Source

Code Definition

Code	QB Wetland Well Shallow
Definition	Wetland monitoring well
Source

Code Definition

Code	TB Upland Well 1
Definition	Upland monitoring well
Source

Code Definition

Code	TB Upland Well 2
Definition	Upland monitoring well
Source

Code Definition

Code	TB Upland Well 3
Definition	Upland monitoring well
Source

Code Definition

Code	TB Wetland Well Shallow
Definition	Wetland monitoring well
Source

Unit	meter
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/869/2/2fa7b041eea9ee875e012bac495a639c
Name:	survey
Description:	Survey data for each transect point and monitoring well at the four wetland sites. Includes elevation relative to wetland center well, distance from wetland center well, and bottom soil horizon elevation relative to the ground surface (in meters).
Number of Records:	24
Number of Columns:	7

Table Structure

Object Name:

survey.csv

Size:

1111 byte

Authentication:

7b9748c7502d17153159e9acec5daf94 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

wetland

station

distance

elevation

O_lower

A_lower

B_lower

Column Name:

wetland

station

distance

elevation

O_lower

A_lower

B_lower

Definition:

Wetland site names: Wetland 1 (ND), Wetland 2 (DB), Wetland 3 (TB), Wetland 4 (QB)

Transect point names: KW-1W = Wetland, KW-2E = Edge, KW-3T = Transition, KW-4U = Upland

Distance along the transect from the wetland center well

Elevation of transect point and/or monitoring well relative to wetland center well

Elevation of the bottom of the O horizon relative to the ground surface

Elevation of the bottom of the A horizon relative to the ground surface

Elevation of the bottom of the B horizon relative to the ground surface

Storage Type:

string

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	DB
Definition	Wetland 2
Source

Code Definition

Code	ND
Definition	Wetland 1
Source

Code Definition

Code	QB
Definition	Wetland 4
Source

Code Definition

Code	TB
Definition	Wetland 3
Source

Definition

Transect point names: KW-1W = Wetland, KW-2E = Edge, KW-3T = Transition, KW-4U = Upland

Unit	meter
Type	real

Unit	meter
Type	real

Unit	meter
Type	real

Unit	meter
Type	real

Unit	meter
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/869/2/a45a6cde63b8733a555b905b4cdc9128
Name:	DOM_Release_Studies
Description:	Data from Chow et al. (2006) and Christ and David (1996) used to determine release constants (k) in conceptual DOM release model R script.
Number of Records:	17
Number of Columns:	3

Table Structure

Object Name:

DOM_Release_Studies.csv

Size:

413 byte

Authentication:

ccf73827ea3483a0c6813414a969274e Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Study

Time_d

DOC_mgC_gSoil

Column Name:

Study

Time_d

DOC_mgC_gSoil

Definition:

Study DOM release data was gathered from

Time (d)

DOC concentration

Storage Type:

string

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Chow2006
Definition	DOM release data estimated from Chow et al. (2006) Figure 2b.
Source

Code Definition

Code	ChristDavid1996
Definition	DOM release data estimated from Christ and David (1996) Figure 1.
Source

Unit	day
Type	integer

Unit	mg C / g soil
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/869/2/6f5e35adfa5b57e2470399137a31b658
Name:	Synoptic_GW_SW
Description:	Synoptic surface water and groundwater samples collected at the time of soil sampling.
Number of Records:	41
Number of Columns:	31

Table Structure

Object Name:

Synoptic_GW_SW.csv

Size:

10158 byte

Authentication:

5fd6ccd1ae7d12d55f3296e37c4ed68f Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Month

Sample_Name

wetland

Point

Generic_Horizon

Cl_mg_L

SO4_mg_L

oPO4_mgP_L

TDP_mgP_L

TDN_mgN_L

NO3_mgN_L

NPOC_mgC_L

BIX

Abs_254nm_perm

Abs_300nm_perm

s275_295

s350_400

SUVA254_L_mgm

SSR

23Na_ppb

24Mg_ppb

27Al_ppb

29Si_ppb

31P_ppb

34S_ppb

35Cl_ppb

39K_ppb

44Ca_ppb

54Fe_ppb

55Mn_ppb

Column Name:

Month

Sample_Name

wetland

Point

Generic_Horizon

Cl_mg_L

SO4_mg_L

oPO4_mgP_L

TDP_mgP_L

TDN_mgN_L

NO3_mgN_L

NPOC_mgC_L

BIX

Abs_254nm_perm

Abs_300nm_perm

s275_295

s350_400

SUVA254_L_mgm

SSR

23Na_ppb

24Mg_ppb

27Al_ppb

29Si_ppb

31P_ppb

34S_ppb

35Cl_ppb

39K_ppb

44Ca_ppb

54Fe_ppb

55Mn_ppb

Definition:

Month sample was collected

Wetland site and well identifier (UW = groundwater well, SW = surface water well)

Wetland site identifier

Numbered SW and GW labels for ease of graphing data

Generic GW vs SW identifier

Chloride ion concentration

Sulfate ion concentration

Orthophosphate

Total dissolved phosphorus

Total dissolved nitrogen

Nitrate

Non-purgeable organic carbon (dissolved organic carbon)

Fluorescence index (FI), Ratio of fluorescence intensity measured at Ex = 370 nm; Em = 470 nm/520 nm

Biological Index (BIX), Ratio of fluorescence intensity Em = 380 nm/430 nm measured at Ex = 310 nm

Absorbance intensity at 245 nm

Absorbance intensity at 300 nm

Slope of absorbance intensity 275 nm - 295 nm

Slope of absorbance intensity 350 nm - 400 nm

Specific ultraviolet absorbance at 254 nm

Spectral slope ratio (Ratio of Abs 275 nm - Abs 295 nm / Abs 350 nm - Abs 400 nm)

Sodium concentration

Magnesium concentration

Aluminum concentration

Silicon concentration

Phosphorus concentration

Sulfur concentration

Chloride concentration

Potassium concentration

Calcium concentration

Iron concentration

Manganese concentration

Storage Type:

string

float

string

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	2020-01
Definition	January 2020
Source

Code Definition

Code	2020-03
Definition	March 2020
Source

Code Definition

Code	2020-09
Definition	September 2020
Source

Code Definition

Code	2020-11
Definition	November 2020
Source

Definition

Wetland site and well identifier (UW = groundwater well, SW = surface water well)

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	DB
Definition	Wetland 2
Source

Code Definition

Code	ND
Definition	Wetland 1
Source

Code Definition

Code	QB
Definition	Wetland 4
Source

Code Definition

Code	TB
Definition	Wetland 3
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1 SW
Definition	Surface water sample
Source

Code Definition

Code	6 GW
Definition	Groundwater sample
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	GW
Definition	Groundwater sample
Source

Code Definition

Code	SW
Definition	Surface water sample
Source

Unit	mg Cl / L
Type	real

Unit	mg SO4 / L
Type	real

Unit	mg oPO4-P / L
Type	real

Unit	mg P / L
Type	real

Unit	mg N / L
Type	real

Unit	mg NO3-N / L
Type	real

Unit	mg C / L
Type	real

Unit	dimensionless
Type	real

Unit	dimensionless
Type	real

Unit	1/m
Type	real

Unit	1/m
Type	real

Unit	1/m
Type	real

Unit	1/m
Type	real

Unit	L/mg-m
Type	real

Unit	dimensionless
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Unit	ppb
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

1_Caculate_WaterLevel

Entity Type:

Rmd

Description:

Estimate depth to water table.

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4727 byte

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Non-Categorized Data Resource

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2_HydrologicMetrics

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Rmd

Description:

Calculate hydrologic metrics and plot hydrologic data.

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16530 byte

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Description:

Generate figures to explore patterns in WSOM data.

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Non-Categorized Data Resource

Name:

4_Soil_Profile_Plots

Entity Type:

Description:

Generate figures of soil horizons and soil colors at each transect point for the four wetland sites.

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3453 byte

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Non-Categorized Data Resource

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Perform cluster analysis on WSOM data.

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13907 byte

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6_Conceptual_DOM_Release_Model

Entity Type:

Rmd

Description:

Estimate DOM released from Wetland O and Upland O horizons using a simplified first order release model.

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9274 byte

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Non-Categorized Data Resource

Name:

7_Statistics

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Description:

Hypothesis testing for hydrologic metrics and WSOM data.

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Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
(No thesaurus)	water soluble organic matter, dissolved organic matter
LTER Controlled Vocabulary	soil, wetlands, hydrology

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

SAMPLE COLLECTION: Four Delmarva Bay wetland sites (referred to as Wetlands 1-4) were used in this study. At each wetland site, an upland to wetland transect of approximately 25 - 45 m was previously established, beginning from a monitoring well in the wetland center to an upland monitoring well (Kottkamp, et al 2021). Each transect contained four equally spaced sampling points (Upland, Transition, Edge, and Wetland). Soils were sampled in late winter (Wetland 1 on January 17, 2020 and Wetlands 2 - 4 on March 10, 2020) and in autumn (All four wetlands on September 21, 2020, and Wetland 4 on November 1, 2020). At each transect point, a one-inch diameter push probe was used to collect soil samples to an approximate depth of 50 cm. Each sample typically captured the Oe or Oa (organic), A (topsoil), and portions of the B (subsoil) horizon within the 50 cm sample length. During March and September sampling, soils were also collected from a seasonal channel and a forested flat near Wetland 4. Leaf litter samples were collected at each of the four sites during the winter sampling campaign. During all sampling events, wetland surface water and upland groundwater samples at each site were filtered into pre-combusted 40 mL amber vials using an acid washed plastic syringe and pre-combusted 0.7 um Whatman GF/F filters. All samples were stored on ice and then in a refrigerator at 4 °C until laboratory analysis was performed.

Description:

WATER LEVEL MONITORING: Continuous water level data, averaged to a daily time-step, was collected over the 2020 water year (October 1, 2019 to September 30, 2020) using HOBO pressure transducers (Model No. U20-001-04) in the previously established wetland and upland monitoring wells (Kottkamp et al 2021, Maietta et al 2020). Due to the relatively small spatial scale and low-relief landscape setting of Delmarva Bays, water table elevation along the transects was estimated assuming a linear groundwater table in-between the two monitoring wells. Water level data were used to calculate minimum, maximum, median, and mean water level relative to the ground surface at each transect point. Additionally, the water level data were used to calculate duration of saturation and number of saturation events for each soil horizon at each transect point.

Description:

WSOM PROCEDURE: The water soluble organic matter (WSOM) extraction procedure was developed using methods from Duston (2020), Jones and Willett (2006), Gabor et al. (2006) and Rennert et al. (2007). On the date of extraction, field-moist soil samples were removed from the refrigerator and sorted to remove any large rocks, roots, and debris. 30 g of field moist soil was mixed with 150 mL of 0.01 M calcium chloride in a flask. The flasks were then placed on a shaker table for one hour at a speed of 200 rpm at room temperature (25 °C). An additional 15 g of soil was measured out and placed in an oven at 110 °C for 24 hours to determine moisture content of each soil horizon. Immediately following shaking, the well-mixed soil-extract solution was divided into two 50 mL Falcon centrifuge tubes and centrifuged at 4,000 rpm (~3,580 g) for 10 minutes. The centrifuged solution was then filtered into two pre-combusted 40 mL amber vials using an acid washed plastic syringe and pre-combusted 0.7 μm Whatman GF/F filter. The vials were stored in a refrigerator at 4 °C until further analysis. Winter leaf litter samples from each of the four sites were also extracted using this procedure. Soil texture was determined using the hydrometer method (Day, 1953).

Description:

INSTRUMENTAL ANALYSES AND SPECTRAL METRICS: Filtered extracted soil solution (WSOM), extracted leaf litter solution (LL), surface water (SW), and groundwater (GW) samples were analyzed for Non-Purgeable Organic Carbon (NPOC) (all samples) and Total Dissolved Nitrogen (WSOM and LL only) on a Shimadzu TOC-Vcph Carbon Analyzer. Nitrate (WSOM and LL only), chloride (SW and GW only), and sulfate (SW and GW only) concentrations were measured on a Dionex ICS 3000. SW and GW samples were also analyzed for Total Dissolved Nitrogen, Nitrate, Total Dissolved Phosphorus, and Orthophosphate on a SEAL AutoAnalyzer 3. Metal concentrations in SW and GW were measured using inductively coupled plasma mass spectrometry. All samples were analyzed for absorbance on a Shimadzu UV Spectrophotometer immediately followed by fluorescence analysis on a Horiba FluoroMax-4 Spectrofluorometer. The spectrophotometer collected absorbance data from 190 to 850 nm in 1 nm increments and samples were blank-corrected during post-processing. To reduce inner-filter effects during fluorescence analysis, samples with absorbance values greater than 0.2 (1/cm) at 240 nm were diluted so that they fell within 0.02 – 0.2 (1/cm) (Ohno, 2002). Excitation-Emission Matrices (EEMs) were collected with an excitation wavelength range of 240-450 nm in 5 nm increments and emission wavelength range of 300-600 nm in 2 nm increments. During post-processing, EEMs were corrected for inner-filter effects, Raman normalized, and blank-corrected following community protocols (Cory et al., 2010, Hounshell, et al., 2021, McKnight et. al, 2001). Spectral metrics including Specific Ultraviolet Absorbance, Fluorescence Index, Humification Index, Biological Index, and Spectral Slope Ratio were calculated after post-processing of absorbance and fluorescence data to characterize WSOM, LL, SW, and GW composition. SUVA254 normalizes absorbance at 254 nm to NPOC concentration (Weishaar et al., 2003). FI is the ratio of emission at wavelengths 470 nm and 520 nm at an excitation wavelength of 370 nm (McKnight, 2001). HIX is the ratio of emission (435 nm – 480 nm) / (300 – 345 nm) measured at 254 nm excitation (Ohno, 2002, Gabor et. al, 2015, Zsolnay et al., 1999). BIX is the ratio between emission 380 nm and 430 nm measured at an excitation wavelength of 310 nm (Huguet et al. 2009). SSR is the ratio of (275 nm – 295 nm) to (350 nm – 400 nm) absorbance values (Helms et al., 2009). Additionally, fluorescence intensity at Peaks T, A, C, M, and N was determined in WSOM and LL samples (Cobble, 2006, Fellman et al., 2010). Parallel factor analysis (PARAFAC) decomposes the fluorescence signature of EEMs to identify the underlying organic matter signals (Murphy et al 2013). Cory and McKnight (2005) developed a thirteen component PARAFAC model using whole water samples from a wide range of aquatic environments. Using MATLAB (ver. 2019b), we assessed WSOM and LL sample loadings across the thirteen components from the Cory and McKnight (2005) PARAFAC model. Using sample loadings, we calculated Percent Protein (summation of protein-like component loadings) and Redox Index (ratio of reduced quinones to total quinones) (Cory and McKnight, 2005, Mladenov et al., 2006, Miller et al., 2006).

Description:

REFERENCES: [1] Chow, A. T., Tanji, K. K., Gao, S., & Dahlgren, R. A. (2006). Temperature, water content and wet-dry cycle effects on DOC production and carbon mineralization in agricultural peat soils. Soil Biology and Biochemistry, 38(3), 477–488. https://doi.org/10.1016/j.soilbio.2005.06.005 [2] Christ, M. J., & David, M. B. (1996). Temperature and moisture effects on the production of dissolved organic carbon in a Spodosol. Soil Biology and Biochemistry, 28(9), 1191–1199. https://doi.org/10.1016/0038-0717(96)00120-4 [3] Coble, P. G. (2007). Marine optical biogeochemistry: The chemistry of ocean color. Chemical Reviews, 107(2), 402–418. https://doi.org/10.1021/cr050350 [4] Cory, R. M., & McKnight, D. M. (2005). Fluorescence spectroscopy reveals ubiquitous presence of oxidized and reduced quinones in dissolved organic matter. Environmental Science and Technology, 39(21), 8142–8149. https://doi.org/10.1021/es0506962 [5] Cory, R. M., Miller, M. P., Mcknight, D. M., Guerard, J. J., & Miller, P. L. (2010). Effect of instrument-specific response on the analysis of fulvic acid fluorescence spectra. Limnology and Oceanography: Methods, 8(2), 67–78. https://doi.org/10.4319/lom.2010.8.67 [6] Day, P. R. (1953). Experimental confirmation of hydrometer theory. Soil Science, 75(3), 181–186. [7] Duston, S. A. (2020). Capturing and Characterizing Soluble Organic Matter Dynamics in Soil Formation Processes. Virginia Tech. [8] Fellman, J.B., E. Hood, and R.G.M. Spencer. 2010. Fluorescence spectroscopy opens new windows into dissolved organic matter dynamics in freshwater ecosystems: A review. Limnology and Oceanography 55, 2452-2462. https://doi.org/10.4319/lo.2010.55.6.2452 [9] Gabor, R. S., Burns, M. A., Lee, R. H., Elg, J. B., Kemper, C. J., Barnard, H. R., & McKnight, D. M. (2015). Influence of leaching solution and catchment location on the fluorescence of water-soluble organic matter. Environmental Science and Technology, 49(7), 4425–4432. https://doi.org/10.1021/es504881t [10] Helms, R. J., Stubbins, A., Ritchie, J. D., Minor, E. C., Kieber, D. J., & Mopper, K. (2009). Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter (Limnology and Oceanography 53 955-969). Limnology and Oceanography, 54(3), 1023. https://doi.org/10.4319/lo.2009.54.3.1023 [11] Hounshell, Alexandria G., Thai, Rose H., Peeler, Kelly A., Scott, Durelle T., Carey, C. C. (n.d.). Time series of optical measurements (absorbance, fluorescence) for Beaverdam and Falling Creek Reservoir in Southwestern Virginia, USA 2019-2020 ver 1. Environmental Data Initiative. https://doi.org/https://doi.org/10.6073/pasta/d1062b14ed1df86507414afe8d45dc75 [12] Huguet, A., L. Vacher, S. Relexans, S. Saubusse, J.M. Froidefond, and E. Parlanti. 2009. Properties of fluorescent dissolved organic matter in the Gironde Estuary. Organic Geochemistry 40, 706-719. https://doi.org/10.1016/j.orggeochem.2009.03.002 [13] Jones, D. L., & Willett, V. B. (2006). Experimental evaluation of methods to quantify dissolved organic nitrogen (DON) and dissolved organic carbon (DOC) in soil. Soil Biology and Biochemistry, 38(5), 991–999. https://doi.org/10.1016/j.soilbio.2005.08.012 [14] Kottkamp, A., Jones, C. N., Palmer, M. A., & Tully, K. L. (2021). Physical protection in aggregates and organo-mineral associations contribute to carbon stabilization at the transition zone of seasonally saturated wetlands. https://doi.org/10.21203/rs.3.rs-358092/v2 [15] Maietta, C. E., Hondula, K. L., Jones, C. N., & Palmer, M. A. (2020). Hydrological Conditions Influence Soil and Methane-Cycling Microbial Populations in Seasonally Saturated Wetlands. Frontiers in Environmental Science, 8(November), 1–13. https://doi.org/10.3389/fenvs.2020.593942 [16] McKnight, D. M., Boyer, E. W., Westerhoff, P. K., Doran, P. T., Kulbe, T., & Andersen, D. T. (2001). Spectrofluorometric characterization of dissolved organic matter for indication of precursor organic material and aromaticity. Limnology and Oceanography, 46(1), 38–48. https://doi.org/10.4319/lo.2001.46.1.0038 [17] Miller, M. P., McKnight, D. M., Cory, R. M., Williams, M. W., & Runkel, R. L. (2006). Hyporheic exchange and fulvic acid redox reactions in an alpine stream/wetland ecosystem, Colorado front range. Environmental Science and Technology, 40(19), 5943–5949. https://doi.org/10.1021/es060635j [18] Mladenov, N., Huntsman-Mapila, P., Wolski, P., Masamba, W. R. L., & McKnight, D. M. (2008). Dissolved organic matter accumulation, reactivity, and redox state in ground water of a recharge wetland. Wetlands, 28(3), 747–759. [19] Murphy, K. R., Stedmon, C. A., Graeber, D., & Bro, R. (2013). Fluorescence spectroscopy and multi-way techniques. PARAFAC. Analytical Methods, 5(23), 6557–6566. https://doi.org/10.1039/c3ay41160e [20] Ohno, T. (2002). Fluorescence inner-filtering correction for determining the humification index of dissolved organic matter. Environmental Science and Technology, 36(4), 742–746. https://doi.org/10.1021/es0155276 [21] Rennert, T., Gockel, K. F., & Mansfeldt, T. (2007). Extraction of water-soluble organic matter from mineral horizons of forest soils. Journal of Plant Nutrition and Soil Science, 170(4), 514–521. https://doi.org/10.1002/jpln.200625099 [22] Weishaar, J. L., Aiken, G. R., Bergamaschi, B. A., Fram, M. S., Fujii, R., & Mopper, K. (2003). Evaluation of specific ultraviolet absorbance as an indicator of the chemical composition and reactivity of dissolved organic carbon. Environmental Science and Technology, 37(20), 4702–4708. https://doi.org/10.1021/es030360x [23] Zsolnay, A., Baigar, E., Jimenez, M., Steinweg, B., & Saccomandi, F. (1999). Differentiating with fluorescence spectroscopy the sources of dissolved organic matter in soils subjected to drying. Chemosphere, 38(1), 45–50. https://doi.org/10.1016/S0045-6535(98)00166-0

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Katherine Wardinski

Organization:

Virginia Tech

Address:

1230 Washington Street SW,

HABB1, Suite 0554,

Blacksburg, Virginia 24061 United States

Email Address:

wardinskik@vt.edu

Id:

https://orcid.org/0000-0002-3722-5663

Individual:

Durelle Scott

Organization:

Virginia Tech

Email Address:

dscott@vt.edu

Id:

https://orcid.org/0000-0002-5792-789X

Individual:

Daniel McLaughlin

Organization:

Virginia Tech

Email Address:

mclaugd@vt.edu

Id:

https://orcid.org/0000-0001-7394-4780

Individual:

Erin Hotchkiss

Organization:

Virginia Tech

Email Address:

ehotchkiss@vt.edu

Id:

https://orcid.org/0000-0001-6132-9107

Individual:

C. Nathan Jones

Organization:

The University of Alabama

Email Address:

cnjones7@au.edu

Id:

https://orcid.org/0000-0002-5804-0510

Individual:

Brian Strahm

Organization:

Virginia Tech

Email Address:

brian.strahm@vt.edu

Id:

https://orcid.org/0000-0002-4025-2304

Contacts:

Individual:

Katherine Wardinski

Organization:

Virginia Tech

Address:

1230 Washington Street SW,

HABB1, Suite 0554,

Blacksburg, Virginia 24061 United States

Email Address:

wardinskik@vt.edu

Id:

https://orcid.org/0000-0002-3722-5663

Metadata Providers:

Individual:

Katherine Wardinski

Organization:

Virginia Tech

Email Address:

wardinskik@vt.edu

Id:

https://orcid.org/0000-0002-3722-5663

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2019-10-01

End:

2020-11-01

Geographic Region:

Description:

Location of Delmarva Bay wetland sites on the Delmarva Peninsula, Maryland, United States.

Bounding Coordinates:

Northern:	39.066812	Southern:	39.04632
Western:	-75.839628	Eastern:	-75.741742

Project

Parent Project Information:

Title:

Hydrologic Connectivity and Water Storage as Drivers of Carbon Export and Emissions from Wetland-Dominated Catchments

Personnel:

Individual:

Daniel McLaughlin

Organization:

Virginia Tech

Email Address:

mclaugd@vt.edu

Id:

https://orcid.org/0000-0001-7394-4780

Role:

Individual:

Erin Hotchkiss

Organization:

Virginia Tech

Email Address:

ehotchkiss@vt.edu

Id:

https://orcid.org/0000-0001-6132-9107

Role:

Co-PI

Individual:

Durelle Scott

Organization:

Virginia Tech

Email Address:

dscott@vt.edu

Id:

https://orcid.org/0000-0002-5792-789X

Role:

Co-PI

Individual:

C. Nathan Jones

Organization:

The University of Alabama

Email Address:

cnjones7@ua.edu

Id:

https://orcid.org/0000-0002-5804-0510

Role:

Individual:

Margaret Palmer

Organization:

University of Maryland

Email Address:

mpalmer@umd.edu

Id:

https://orcid.org/0000-0003-1468-7993

Role:

Co-PI

Abstract:

Worldwide, rich forested wetlands have been converted to agriculture through ditching and draining. These wetlands are important for regional water and carbon cycles. They reduce downstream flooding through water storage, providing dissolved organic carbon to downstream ecosystems, and contributing to carbon storage. While efforts are being made to restore drained wetlands, recovery of ecosystem services has lagged. Research is urgently needed to understand how hydrology influences delivery of wetland ecosystem services to guide future restoration and management. This project will investigate water movement and carbon cycling in wetland-rich Delmarva Bay. Research will focus on freshwater wetlands that are often isolated from adjacent rivers. These small wetlands are vulnerable to land-use change, and their impact on regional water and carbon cycling is poorly understood. This research will inform management, contribute to meeting national research priorities, and build capacity in the scientific workforce. Students will be engaged in all aspects of the research, as well as in interactive meetings with managers and training workshops on actionable science. This project will also provide data on carbon budgets and in advancing next-generation models to estimate carbon dynamics.

Additional Award Information:

Funder:	National Science Foundation
Number:	1856560
Title:	Collaborative Research: Hydrologic Connectivity and Water Storage as Drivers of Carbon Export and Emissions from Wetland-Dominated Catchments
URL:	https://www.nsf.gov/awardsearch/showAward?AWD_ID=1856560&HistoricalAwards=false

Maintenance

Maintenance:

Description:	Data collection completed.
Frequency:	asNeeded

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg N / L'
        |     |     |     |  \___attribute 'name' = 'mg N / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg N / g soil'
        |     |     |     |  \___attribute 'name' = 'mg N / g soil'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'TDN (mg N / g soil) = TDN (mg N/L) * Vol Extractant (L) / Mass Soil (g)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg NO3-N / L'
        |     |     |     |  \___attribute 'name' = 'mg NO3-N / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg NO3-N / g soil'
        |     |     |     |  \___attribute 'name' = 'mg NO3-N / g soil'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'NO3 (mg NO3-N / g soil) = NO3 (mg NO3-N/L) * Vol Extractant (L) / Mass Soil (g)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg C / L'
        |     |     |     |  \___attribute 'name' = 'mg C / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg WSOC / g soil'
        |     |     |     |  \___attribute 'name' = 'mg WSOC / g soil'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'WSOC (mg WSOC / g soil) = NPOC (mg C/L) * Vol Extractant (L) / Mass Soil (g)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'g WOSC / square m'
        |     |     |     |  \___attribute 'name' = 'g WOSC / square m'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'WSOC (g WSOC / square m) = WOSC (mg WSOC / g soil) * Horizon Thickness (cm) * Bulk Density (g/cubic cm) * (100 cm / m)^2 * (1 g / 1000 mg)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'L/mg-m'
        |     |     |     |  \___attribute 'name' = 'L/mg-m'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'SUVA254 (L/mg-m) = UV Absorbance @ 254nm (1/m) / NPOC (mg C / L)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg Cl / L'
        |     |     |     |  \___attribute 'name' = 'mg Cl / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg SO4 / L'
        |     |     |     |  \___attribute 'name' = 'mg SO4 / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg oPO4-P / L'
        |     |     |     |  \___attribute 'name' = 'mg oPO4-P / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg P / L'
        |     |     |     |  \___attribute 'name' = 'mg P / L'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = '1/m'
        |     |     |     |  \___attribute 'name' = '1/m'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'ppb'
        |     |     |     |  \___attribute 'name' = 'ppb'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'Parts per billion'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'NA'
        |     |     |     |  \___attribute 'name' = 'NA'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'day'
        |     |     |     |  \___attribute 'name' = 'day'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'mg C / g soil'
        |     |     |     |  \___attribute 'name' = 'mg C / g soil'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'percent as decimal '
        |     |     |     |  \___attribute 'name' = 'percent as decimal '
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = '1/cm'
        |     |     |     |  \___attribute 'name' = '1/cm'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Relative Fluorescence Units'
        |     |     |     |  \___attribute 'name' = 'Relative Fluorescence Units'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'dimensionless'
        |     |     |     |  \___attribute 'name' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'RI = (C4 + C5 + C7 + C9) / (C2 + C4 + C5 + C7 + C9 + C11 + C12), C = Component from Cory and McKnight (2005) PARAFAC model'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2022.05.10'
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Water soluble organic matter from Delmarva Bay soils

Data Entities

Data Table

Data Table

Data Table

Data Table

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Data Package Usage Rights

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Water soluble organic matter from Delmarva Bay soils

+/- Data Entities

Data Table

Data Table

Data Table

Data Table

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata

Additional Metadata