Data Package Metadata View Summary

Concentration of mercury in vegetation from Hubbard Brook Experimental Forest, NH; Sleepers Brook, VT; Bear Brook, ME; and Huntington Forest, NY

General Information

Data Package:
Local Identifier:	knb-lter-hbr.204.2
Title:	Concentration of mercury in vegetation from Hubbard Brook Experimental Forest, NH; Sleepers Brook, VT; Bear Brook, ME; and Huntington Forest, NY
Alternate Identifier:	knb-lter-hbr.204
Alternate Identifier:	doi:10.5072/FK2/c8261f76895a071205e3665f70e58096
Abstract:	Quantifying mercury (Hg) in tree tissues is essential to understanding the pools and fluxes of Hg in forest ecosystems. We collected and analyzed foliage, bark and bole wood of eight tree species at four sites in the northeastern USA (Huntington Forest, NY; Sleepers River, VT; Hubbard Brook, NH; Bear Brook, ME).
Short Name:	MercuryVegetation
Publication Date:	2019-02-14
Language:	English

Time Period

Begin:

2015-08-13

End:

2015-09-07

People and Organizations
Contact:	Information Manager (Hubbard Brook Ecosystem Study) [ email ]
Creator:	Yang, Yang
Creator:	Yanai, Ruth D

Data Entities
Data Table Name:	vegetation_mercury
Description:	Concentrations of Hg in composited tissue samples

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-hbr/204/2/e79dbeaffd1e1f35b8a3511f32cb8286
Name:	vegetation_mercury
Description:	Concentrations of Hg in composited tissue samples
Number of Records:	171
Number of Columns:	6

Table Structure

Object Name:

vegetation_mercury.csv

Size:

7262 byte

Authentication:

93be95bf5470cd5a7cf56c61b0a51f95 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Site

Stand Type

Species

Tissue Type

Replicate

Mercury Concentration

Column Name:

Site

Stand_type

Species

Tissue_Type

Replicate

Hg_Concentration

Definition:

Site name

Hardwood or conifer site

Tree species

Tissue type: bark, leaf or wood

Composited replicate number

Mercury concentration as ng/g

Storage Type:

string

short

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Definition

any text

Definition

any text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	BEAL2
Definition	Betula alleghaniensis Britton
Source

Code Definition

Code	ACSA3
Definition	Acer saccharum Marshall
Source

Code Definition

Code	ACRU
Definition	Acer rubrum L.
Source

Code Definition

Code	ABBA
Definition	Abies balsamea (L.) Mill.
Source

Code Definition

Code	PIST
Definition	Pinus strobus L.
Source

Code Definition

Code	PIRU
Definition	Picea rubens Sarg.
Source

Code Definition

Code	FRAM2
Definition	Fraxinus americana L.
Source

Code Definition

Code	FAGR
Definition	Fagus grandifolia Ehrh.
Source

Definition

any text

Unit	number
Type	integer

Unit	nanogramPerGram
Precision	0.01
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

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:
Hubbard Brook Ecosystem Study	bark, Bear Brook Watershed ME, bole wood, HBR, Hubbard Brook LTER, Huntington Forest NY, mercury, Sleepers River VT
LTER Network Controlled Vocabulary	forests, leaves, vegetation
LTER Network Core Research Areas	disturbance

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:

Dominant hardwood and conifer species were sampled in each stand. Material collected included: bark without visible lichen at 1.3m above ground; two cores from outer wood to pith 1m above ground; sun-exposed leaves without evidence of herbivory or pathogens from the upper canopy.

Samples were cleaned using DI water and freeze-dried to constant mass at -80C and 7Pa. Dried samples were ground to homogenized particles. For each type of tissue and species, samples were composited in groups of three trees prior to Hg analysis. Hg concentration was determined using thermal decomposition, catalytic conersion, amalgamation, and atomic absorption spectrophotometry, using a Milestone DMA 80 direct Hg analyzer. Complete details on methods can be found in Yang et al. 2018.

People and Organizations

Publishers:

Organization:

Hubbard Brook Ecosystem Study

Address:

234 Mirror Lake Road,

North Woodstock, NH 03262 United States

Creators:

Individual:

Yang Yang

Email Address:

yyang100@syr.edu

Individual:

Ruth D Yanai

Email Address:

rdyanai@syr.edu

Contacts:

Organization:

Hubbard Brook Ecosystem Study

Position:

Information Manager

Address:

234 Mirror Lake Road,

North Woodstock, NH 03262 United States

Email Address:

hbr-im@lternet.edu

Web Address:

https://hubbardbrook.org

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2015-08-13

End:

2015-09-07

Geographic Region:

Description:

Hubbard Brook Experimental Forest NH

Bounding Coordinates:

Northern:	43.959	Southern:	43.914
Western:	-71.8062	Eastern:	-71.7022

Project

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'ng/g'
        |     |     |     |  \___attribute 'id' = 'nanogramPerGram'
        |     |     |     |  \___attribute 'multiplierToSI' = '1E-09'
        |     |     |     |  \___attribute 'name' = 'nanogramPerGram'
        |     |     |     |  \___attribute 'parentSI' = 'gram'
        |     |     |     |  \___attribute 'unitType' = 'mass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'amount of substance per mass'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'number'
        |     |     |     |  \___attribute 'name' = 'number'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'a number'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Concentration of mercury in vegetation from Hubbard Brook Experimental Forest, NH; Sleepers Brook, VT; Bear Brook, ME; and Huntington Forest, NY

Data Entities

Data Table

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

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Concentration of mercury in vegetation from Hubbard Brook Experimental Forest, NH; Sleepers Brook, VT; Bear Brook, ME; and Huntington Forest, NY

+/- Data Entities

Data Table

+/- 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

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Additional Metadata