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Tree-ring width measurements and isotope data for riparian Populus species, Santa Clara River, 2019

General Information
Data Package:
Local Identifier:edi.1114.3
Title:Tree-ring width measurements and isotope data for riparian Populus species, Santa Clara River, 2019
Alternate Identifier:DOI PLACE HOLDER
Abstract:
This data set comprises tree-ring data collected from 114 cottonwood trees (Populus trichocarpa and Populus fremontii) within the floodplain of the Santa Clara River, CA. Tree-ring data include annual ring width measurements for all rings of each individual as well as semi-annual (earlywood and latewood) measurements of stable carbon and oxygen isotopes for pure alpha cellulose extracted from annual growth rings corresponding to calendar years 2010-2019 for a subset of 48 individuals. This data set is completed. Carbon and oxygen isotope ratios are reported using “delta” notation (i.e. δ13C and δ18O) calculated by the equation: δ13C (or δ18O) = (Rsample/Rstandard - 1) x1000 where R is the molar ratio of 13C/12C (or 18O/16O), with Rsample being that of tree ring cellulose and Rstandard that of Vienna Pee Dee Belemite (VPDB) for δ13C and Vienna Standard Mean Ocean Water (VSMOW) for δ18O. These data were used for the following publication: Williams, J., J.C. Stella, S.L. Voelker, A.M. Lambert, L. Pelletier, J.E. Drake, J.M. Friedman, D.A. Roberts, M.B. Singer. (2022). Local groundwater decline exacerbates response of dryland riparian woodlands to climatic drought. Global Change Biology.
Publication Date:2022-06-27
For more information:
Visit: DOI PLACE HOLDER

People and Organizations
Contact:Williams, Jared (SUNY College of Environmental Science and Forestry, PhD candidate) [  email ]
Contact:Stella, John (SUNY College of Environmental Science and Forestry, Vice President of Research) [  email ]
Creator:Williams, Jared (SUNY College of Environmental Science and Forestry, PhD candidate)

Data Entities
Data Table Name:
SCRdrought_TreeCoreCollectionData
Description:
Tree core collection data including collection coordinates, tree IDs, and core IDs that correspond with ring width and isotope data identifiers. Used for SCR drought study.
Data Table Name:
SCRdrought_d13Cdata
Description:
Stable carbon isotope data for SCR drought study.
Data Table Name:
SCRdrought_d18Odata
Description:
stable oxygen isotope data for SCR drought study.
Data Table Name:
SCRdrought_RWLdata
Description:
Raw ring width measurements (Ring Width Length) of annual growth rings of tree cores for SCR drought study.
Data Table Name:
SCRdrought_PithOffsetData
Description:
Data frame with pith offset for each tree included in ring width measurements. Pith offset is the estimated number of annual rings missing from ring width measurements (for cases in which the pith of the tree was not including in tree core sample). Pith offset was used to calculate RCS detrending for SCR drought study.
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1114/3/9727b3c32c47ef2a820e1ec1dc166d63
Name:SCRdrought_TreeCoreCollectionData
Description:Tree core collection data including collection coordinates, tree IDs, and core IDs that correspond with ring width and isotope data identifiers. Used for SCR drought study.
Number of Records:303
Number of Columns:15

Table Structure
Object Name:TreeCoreCollectionData.csv
Size:33510 byte
Authentication:998b47b9f680b465cdbfcab2a47651e3 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 sitesite_idspeciestree_idcore_lettercore_iddate_yymmddlatitudelongitudedbh_cmdch_cmcore_height_cmtotal_height _mplc_1plc_2
Column Name:site  
site_id  
species  
tree_id  
core_letter  
core_id  
date_yymmdd  
latitude  
longitude  
dbh_cm  
dch_cm  
core_height_cm  
total_height _m  
plc_1  
plc_2  
Definition:Name of the site where tree cores were collected. All cores collected from within the same site were grouped for statistical analyses.Three letter site code used as the first three digits of "core_id" to identify where tree cores were collected.Species of tree from which tree core was collected.Three digit code to identify tree from which tree cores were collected (i.e. tree ID). Each tree has a unique tree ID. Tree IDs correspond with d13C, d18O, and RWL data tabes.Alphabetically assigned identifier of replicate cores collected from the same tree (i.e. first core collected from the tree is core "A", second core collected is core "B" and so on).Unique identifier of each individual tree core collected. Format is three letters for site - three numbers for tree - single letter for core replicate.Date that tree core was collected, reported in the format YYMMDD (two digits for year, two digits for month, two digits for day of month).WGS84 latitude coordinate for tree from which core was collected.WGS84 longitude coordinate for tree from which core was collected.Diameter at breast height of tree from which core was collected. Recorded in centimeters.Diameter at core height (the diameter of the tree at the height at which core was extracted). Recorded in centimeters.Distance from the ground to point on the trunk of the tree at which tree core was extracted. Recorded in centimeters.Total height of the tree from which tree core was collected. Measured from where tree roots meet the ground to the highest living part of the tree (i.e. tallest green leaf). Measured in meters using a rangefinder. For some trees, this measurement was estimated due to canopy density. In these cases "~" denotes an estimate height, and "<" denotes less than an absolute height. Both approximations were based on heights of nearby trees that were measurable.Percent live crown volume estimate from field technician 1.Percent live crown volume estimate from field technician 2.
Storage Type:string  
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float  
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float  
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Measurement Type:nominalnominalnominalrationominalnominalratioratioratioratioratiorationominalratioratio
Measurement Values Domain:
DefinitionName of the site where tree cores were collected. All cores collected from within the same site were grouped for statistical analyses.
DefinitionThree letter site code used as the first three digits of "core_id" to identify where tree cores were collected.
DefinitionSpecies of tree from which tree core was collected.
Unitnumber
Typeinteger
DefinitionAlphabetically assigned identifier of replicate cores collected from the same tree (i.e. first core collected from the tree is core "A", second core collected is core "B" and so on).
DefinitionUnique identifier of each individual tree core collected. Format is three letters for site - three numbers for tree - single letter for core replicate.
UnitDate code
Typeinteger
UnitLatitude
Typereal
Unitlongitude
Typereal
Unitcentimeter
Typereal
Unitcentimeter
Typereal
Unitcentimeter
Typereal
DefinitionTotal height of the tree from which tree core was collected. Measured from where tree roots meet the ground to the highest living part of the tree (i.e. tallest green leaf). Measured in meters using a rangefinder. For some trees, this measurement was estimated due to canopy density. In these cases "~" denotes an estimate height, and "<" denotes less than an absolute height. Both approximations were based on heights of nearby trees that were measurable.
Unitpercent
Typeinteger
Unitpercent
Typeinteger
Missing Value Code:                              
Accuracy Report:                              
Accuracy Assessment:                              
Coverage:                              
Methods:                              

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1114/3/3d306efe27b7feef39ea5f3868fc66cb
Name:SCRdrought_d13Cdata
Description:Stable carbon isotope data for SCR drought study.
Number of Records:840
Number of Columns:4

Table Structure
Object Name:SCR_d13C_data.csv
Size:26373 byte
Authentication:c038937e925b476ccee9ede49adf2363 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 yeartree_idd13CE_L
Column Name:year  
tree_id  
d13C  
E_L  
Definition:Calendar year corresponding to carbon isotope values.Unique identifier for the tree from which tree core was collected. "tree_id" corresponds to "SCR_TreeCoreCollectionData" data set where characteristics of the tree (location, height, DBH, etc. can be found).Stable carbon isotope values reported in "delta" notation (δ13C = (Rsample/Rstandard - 1) x 1000) where R is the molar ratio of 13C/12C, with Rsample indicating tree ring cellulose and Rstandard indicating the Vienna Pee Dee Belemite (VPDB) standard.This columns denotes whether the stable carbon isotope values correspond with earlywood or latewood of the year listed in the "year" column. Each annual ring was split into earlywood and latewood before cellulose extraction and isotope analysis.
Storage Type:float  
float  
float  
string  
Measurement Type:ratioratiorationominal
Measurement Values Domain:
UnitYear
Typeinteger
Unitnumber
Typeinteger
Unitdelta
Typereal
DefinitionThis columns denotes whether the stable carbon isotope values correspond with earlywood or latewood of the year listed in the "year" column. Each annual ring was split into earlywood and latewood before cellulose extraction and isotope analysis.
Missing Value Code:    
CodeNA
ExplTree cores were collected during the 2019 growing season, so some trees did not yet show latewood formation. In these cases, there was no latewood d13C value for 2019.
  
Accuracy Report:        
Accuracy Assessment:        
Coverage:        
Methods:        

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1114/3/c53f935d98b57acfbfc536079b493e63
Name:SCRdrought_d18Odata
Description:stable oxygen isotope data for SCR drought study.
Number of Records:840
Number of Columns:4

Table Structure
Object Name:SCR_d18O_data.csv
Size:23853 byte
Authentication:0a049245c2aef2df4722e3b51199d7c5 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 yeartree_idd18OE_L
Column Name:year  
tree_id  
d18O  
E_L  
Definition:Calendar year corresponding to oxygen isotope values.Unique identifier for the tree from which tree core was collected. "tree_id" corresponds to "SCR_TreeCoreCollectionData" data set where characteristics of the tree (location, height, DBH, etc. can be found).Stable oxygen isotope values reported in "delta" notation (δ18O = (Rsample/Rstandard - 1) x 1000) where R is the molar ratio of 18O/16O, with Rsample indicating tree ring cellulose and Rstandard indicating the Vienna Standard Mean Ocean Water (VSMOW) standard.This columns denotes whether the stable carbon isotope values correspond with earlywood or latewood of the year listed in the "year" column. Each annual ring was split into earlywood and latewood before cellulose extraction and isotope analysis.
Storage Type:float  
float  
float  
string  
Measurement Type:ratioratiorationominal
Measurement Values Domain:
UnitYear
Typeinteger
Unitnumber
Typeinteger
Unitdelta
Typereal
DefinitionThis columns denotes whether the stable carbon isotope values correspond with earlywood or latewood of the year listed in the "year" column. Each annual ring was split into earlywood and latewood before cellulose extraction and isotope analysis.
Missing Value Code:    
CodeNA
ExplTree cores were collected during the 2019 growing season, so some trees did not yet show latewood formation. In these cases, there was no latewood d13C value for 2019.
  
Accuracy Report:        
Accuracy Assessment:        
Coverage:        
Methods:        

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1114/3/fa0520e09fd1c4f7b9040045c522316a
Name:SCRdrought_RWLdata
Description:Raw ring width measurements (Ring Width Length) of annual growth rings of tree cores for SCR drought study.
Number of Records:2120
Number of Columns:3

Table Structure
Object Name:SCR_rawRWL_data.csv
Size:37469 byte
Authentication:fe045f64162f9c297476daa9b87ef332 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 yeartree_idrwl
Column Name:year  
tree_id  
rwl  
Definition:Calendar year corresponding to ring width measurements.Unique identifier for the tree from which tree core was collected. "tree_id" corresponds to "SCR_TreeCoreCollectionData" data set where characteristics of the tree (location, height, DBH, etc. can be found).Ring width length. Measurement of the width of annual growth rings.
Storage Type:float  
float  
float  
Measurement Type:ratioratioratio
Measurement Values Domain:
UnitYear
Typeinteger
Unitnumber
Typeinteger
Unitmillimeter
Typereal
Missing Value Code:    
CodeNA
ExplNA values denote that there was no valid ring width measurement for that year.
Accuracy Report:      
Accuracy Assessment:      
Coverage:      
Methods:      

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1114/3/7a021f6d911d7d13bddaf875d81a5de5
Name:SCRdrought_PithOffsetData
Description:Data frame with pith offset for each tree included in ring width measurements. Pith offset is the estimated number of annual rings missing from ring width measurements (for cases in which the pith of the tree was not including in tree core sample). Pith offset was used to calculate RCS detrending for SCR drought study.
Number of Records:114
Number of Columns:2

Table Structure
Object Name:SCR_PithOffset_data.csv
Size:709 byte
Authentication:2ef11b4fc7a834a44c6fb6ffa2e5da9c Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 tree_idpith.offset
Column Name:tree_id  
pith.offset  
Definition:Unique identifier for the tree from which tree core was collected. "tree_id" corresponds to "SCR_TreeCoreCollectionData" data set where characteristics of the tree (location, height, DBH, etc. can be found).Estimated number of annual rings missing from tree cores for each tree. Estimated using the concentric circles method (Pirie et al., 2015). A value of "1" means that the pith was included in sample (i.e. no missing rings). A value of "2" means that there is a single annual ring estimated to be missing from tree core sample, and so on.
Storage Type:float  
float  
Measurement Type:ratioratio
Measurement Values Domain:
Unitnumber
Typeinteger
Unitnumber
Typeinteger
Missing Value Code:    
Accuracy Report:    
Accuracy Assessment:    
Coverage:    
Methods:    

Data Package Usage Rights

This data package is released under the Creative Commons License Attribution 4.0 International (CC BY 4.0, see https://creativecommons.org/licenses/by/4.0/). This license states that consumers ("Data Users" herein) may distribute, adapt, reuse, remix, and build upon this work, as long as they give appropriate credit, provide a link to the license, and indicate if changes were made. If redistributed, a Data User may not apply additional restrictions or technological measures that prevent access. The Data User has an ethical obligation to cite the data source appropriately in any publication or product that results from its use, and notify the data contact or creator. Communication, collaboration, or co-authorship (as appropriate) with the creators of this data package is encouraged to prevent duplicate research or publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. 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 duplication or inappropriate use. The Data User should realize that misinterpretation may occur if data are used outside of the context of the original study. The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. This data package (with its components) is made available “as is” and with no warranty of accuracy or fitness for use. The creators of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use or misuse of the data package or its components.

Keywords

By Thesaurus:
(No thesaurus)Populus, dendroisotopes, carbon stable isotopes, oxygen stable isotopes, tree-ring, Riparian, cottonwoods
LTER Controlled Vocabularydendrochronology

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:
Methods for tree core collections. Tree cores were collected in July 2019 from seven sites spread across the length of the lower SCR (Figure 1; Table 1). Sites were selected to represent the range of local climate (i.e., increasing aridity with distance from coast) and drought impact severity (estimated from aerial imagery). At each site, the largest living cottonwood trees (P. fremontii and P. trichocarpa) in dominant or co-dominant canopy positions and without signs of pest or pathogen infestation, were selected for coring. Within each site, all increment cores were collected from the same species, and each tree was cored with 5.15 and 12-mm Hagloff increment borers yielding at least two cores per tree. Cores were collected from as close to the ground as possible to provide a full age record, and on opposite sides of the tree to capture geometric heterogeneity (Speer, 2010). The number of suitable trees varied at each site, ranging from 9 to 22 trees, for a total of 114 trees sampled.
Description:
Methods for annual ring width measurements. Cores were dried, glued to wooden mounts, and sanded with progressively finer grit paper up to a final grit of 20 microns. Ring widths were measured using a stereomicroscope and digital tree-ring encoder (Velmex Inc., Bloomfield, NY). Measurements were visualized using Tellervo computer software (Tellervo.org, Tucson, Arizona). Ring boundaries were independently assessed by two lab technicians. Traditional crossdating using COFECHA was not possible due to the young age of sampled trees, so cores from the same tree were visually crossdated using Tellervo. Since at least two cores were collected from each tree, the combination of conferred ring boundary determination and comparison of cores from the same tree was sufficient to ensure accurate dating. Cores with ring boundaries that could not be confidently identified, or trees from which cores did not crossdate well, were removed from subsequent analyses. Raw ring width measurements of cores from the same tree were averaged. For trees from which pith was not hit by either core, pith offset (number of missing rings) was calculated using the concentric circles method (Pirie et al., 2015). Statistical analyses were completed using the computer program R version 3.6.2 (2019-12-12) using TreeClim, BootRes, and dplR packages (Bunn 2010; Zang and Biondi 2015).
Description:
Methods for separating earlywood and latewood for annual growth rings to be used as part of isotope analysis. Many of the annual rings from collected cores did not have clearly differentiated earlywood and latewood segments. In these cases, it was necessary to estimate the ratio of earlywood to latewood area before excising semi-annual ring segments for isotope analysis. To do so, the width of earlywood and latewood was measured for a subset of 65 rings for which they could be clearly differentiated based on change in wood color, xylem diameter, and xylem density (Figure S2.1). These measurements were used to calculate the average ratio of earlywood to latewood for annual rings, 0.524 +/- 0.012 (mean +/- standard error). Rings for which earlywood and latewood were not easily discernible were cut according to the average proportion of earlywood to latewood. Since tree cores were collected from June-July of 2019, rings for that year were not fully formed. For some trees, the 2019 ring width already exceeded the ring width of 2018 and there was a discernable boundary between earlywood and latewood. For trees without a discernable boundary, the 2019 ring was split at the same width as the 2018 ring to create equivalent sized earlywood samples, and remaining material was considered latewood. For trees with 2019 rings that were less than half the size of 2018 rings at the time of collection, the entire sample was considered to be earlywood.
Description:
Methods for extracting pure alpha cellulose from tree-rings. All woody material from excised rings was ground using a Wiley mini cutting mill (Thomas Scientific, Swedesboro, NJ) to pass through an 80-mesh sieve. Samples were heat-sealed in F57 polyethylene fiber filter bags (ANKOM Technology, Macedon, NY) and placed in an ultrasonic bath for the cellulose extraction process following the methods of Leavitt & Danzer (1993). Pure alpha cellulose samples were dissolved in deionized water and homogenized using an ultrasonic probe before being freeze dried for 72 hours.

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@edirepository.org
Web Address:
https://edirepository.org
Id:https://ror.org/0330j0z60
Creators:
Individual: Jared Williams
Organization:SUNY College of Environmental Science and Forestry
Position:PhD candidate
Email Address:
jwilli64@syr.edu
Id:https://orcid.org/0000-0002-0383-6650
Contacts:
Individual: Jared Williams
Organization:SUNY College of Environmental Science and Forestry
Position:PhD candidate
Email Address:
jwilli64@syr.edu
Id:https://orcid.org/0000-0002-0383-6650
Individual:Dr. John Stella
Organization:SUNY College of Environmental Science and Forestry
Position:Vice President of Research
Email Address:
stella@esf.edu
Id:https://orcid.org/0000-0001-6095- 7726

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:
Geographic Region:
Description:The lower Santa Clara River floodplain spanning from the city of Santa Paula in Ventura county (southwestern extent) to the city of Valencia in Los Angeles county (northeastern extent)
Bounding Coordinates:
Northern:  34.43459Southern:  34.30393
Western:  -119.10178Eastern:  -118.596
Taxonomic Range:
General Coverage:Populus balsamifera ssp. trichocarpa and Populus fremontii
Classification:
Rank Name:Kingdom
Rank Value:Plantae
Common Name:plants
Identifer:https://www.itis.gov
ID: 202422
Classification:
Rank Name:Subkingdom
Rank Value:Viridiplantae
Common Name:green plants
Identifer:https://www.itis.gov
ID: 954898
Classification:
Rank Name:Infrakingdom
Rank Value:Streptophyta
Common Name:land plants
Identifer:https://www.itis.gov
ID: 846494
Classification:
Rank Name:Division
Rank Value:Tracheophyta
Common Name:vascular plants
Identifer:https://www.itis.gov
ID: 846496
Classification:
Rank Name:Subdivision
Rank Value:Spermatophytina
Common Name:spermatophytes
Identifer:https://www.itis.gov
ID: 846504
Classification:
Rank Name:Class
Rank Value:Magnoliopsida
Identifer:https://www.itis.gov
ID: 18063
Classification:
Rank Name:Superorder
Rank Value:Rosanae
Identifer:https://www.itis.gov
ID: 846548
Classification:
Rank Name:Order
Rank Value:Malpighiales
Identifer:https://www.itis.gov
ID: 822428
Classification:
Rank Name:Family
Rank Value:Salicaceae
Common Name:willows
Identifer:https://www.itis.gov
ID: 22443
Classification:
Rank Name:Genus
Rank Value:Populus
Common Name:cottonwood
Identifer:https://www.itis.gov
ID: 22444
Classification:
Rank Name:Species
Rank Value:Populus trichocarpa
Common Name:black cottonwood
Identifer:https://www.itis.gov
ID: 195735

Project

Parent Project Information:

Title:Dendroisotopic analysis of cottonwood drought response along the Santa Clara River, CA
Personnel:
Individual: Jared Williams
Organization:SUNY ESF
Position:PhD candidate
Email Address:
jwilli64@syr.edu
Id:https://orcid.org/0000-0002-0383-6650
Role:Person who conducted the study
Abstract:Williams, J., J.C. Stella, S.L. Voelker, A.M. Lambert, L. Pelletier, J.E. Drake, J.M. Friedman, D.A. Roberts, M.B. Singer. (2022). Local groundwater decline exacerbates response of dryland riparian woodlands to climatic drought. Global Change Biology.
Additional Award Information:
Funder:Department of Defense's Strategic Environmental Research and Development Program
Number:RC18-1006
Title:Understanding and Assessing Riparian Habitat Vulnerability to Drought-Prone Climate Regimes on Department of Defense Bases in the Southwestern USA
Additional Award Information:
Funder:National Science Foundation
Number:BCS-1660490
Title:Linking Basin-Scale, Stand-Level, and Individual Tree Water Stress Indicators for Groundwater-Dependent Riparian Forests in Multiple-Use River Basins
Additional Award Information:
Funder:National Science Foundation
Number:EAR-1700517
Title:Collaborative Research: Impacts of Dynamic, Climate-Driven Water Availability on Tree Water Use and Health in Mediterranean Riparian Forests
Additional Award Information:
Funder:National Science Foundation
Number:EAR-1700555
Title:Collaborative Research: Impacts of Dynamic, Climate-Driven Water Availability on Tree Water Use and Health in Mediterranean Riparian Forests
Other Metadata

Additional Metadata

additionalMetadata
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        |     |     |     |___text '\n          '
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        |     |     |     |     |___text 'WGS84 coordinate system.'
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        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'longitude'
        |     |     |     |  \___attribute 'name' = 'longitude'
        |     |     |     |___text '\n          '
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        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Year'
        |     |     |     |  \___attribute 'name' = 'Year'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'Calendar year.'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'delta'
        |     |     |     |  \___attribute 'name' = 'delta'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'Deviation of the isotopic composition of the material from the VSMOW standard.'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
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        |     |___element 'fetchedFromEDI'
        |     |        \___attribute 'dateFetched' = '2022-06-27'
        |     |        \___attribute 'packageID' = 'edi.1114.1'
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Additional Metadata

additionalMetadata
        |___text '\n    '
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        |     |        \___attribute 'taxonomicCoverageExempt' = 'True'
        |     |___text '\n    '
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Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2022.06.04'
        |     |___text '\n    '
        |___text '\n  '

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