Data Package Metadata View Summary

Eight Mile Lake Research Watershed, Thaw Gradient: Foliar mineral element concentrations, stocks and annual litterfall fluxes estimated for July 2017

General Information

Data Package:

Local Identifier:

knb-lter-bnz.782.3

Title:

Eight Mile Lake Research Watershed, Thaw Gradient: Foliar mineral element concentrations, stocks and annual litterfall fluxes estimated for July 2017

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

In this study, we are asking the question: how permafrost degradation may influence foliar mineral element cycling with changing subarctic tundra vegeatation? We are answering this question by using a combination of field measurements (aboveground biomass, foliar biomass, foliar net primary productivity (NPP)) and laboratory measurements (mineral element foliar concentration: Al, Ca, Fe, K, Mn, P, S, Si, and Zn) to evaluate the mineral element foliar stocks and the mineral element foliar fluxes upon annual litterfall. We covered 7 vascular plant species and 2 groups of non-vascular species (mosses and lichens) from an established tundra field site near Healy, Alaska in the foothills of the Alaska Range. Field measurements center on a natural experiment where permafrost has been observed to warm and thaw over the past several decades. This area represents a gradient of sites each with a different degree of change (active layer, water table depth, and vegetation composition) due to permafrost thawing. As such, this area is unique for addressing questions at the time and spatial scales relevant for change in arctic ecosystems. Elemental analyses of plant species typical from a moist acidic tundra, combined with aboveground biomass and NPP measurements, brought key information on the influence of the vegetation composition on the litter elemental composition, and thereby the plant nutrient cycling across the subarctic tundra.

Short Name:

knb-lter-bnz.782.3

Publication Date:

2021-07-01

For more information:
Visit:	http://www.lter.uaf.edu/data/data-detail/id/782

Time Period

Begin:

2017-07-15

End:

2019-09-04

People and Organizations
Contact:	Data Manager (Bonanza Creek LTER) [ email ]
Creator:	Mauclet, Elisabeth
Creator:	Opfergelt, Sophie
Creator:	Agnan, Yannick (Professor)
Creator:	Hirst, Catherine
Creator:	Monhonval, Arthur
Creator:	Ledman, Justin (Site Technician)
Creator:	Taylor, Meghan (Postdoctoral Researcher )
Creator:	Schuur, Edward (Senior Investigator)
Organization:	Bonanza Creek LTER

Data Entities
Data Table Name:	782_Foliar_mineral_element_concentration_stock_annual_flux_Gradient_2017.csv
Description:	This dataset contains mineral element concentration in plant foliar tissues (Al, Ca, Fe, K, Mn, P, S, Si, and Zn) sampled between 16 August to 3 September 2019. Associated foliar stocks and annual foliar fluxes were calculated from 2017 biomass data (Jasinski et al., 2017) and NPP data (Schuur et al., 2007).

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-bnz/782/3/5150966ea4acb0a09f8d59f5184e3dd9
Name:	782_Foliar_mineral_element_concentration_stock_annual_flux_Gradient_2017.csv
Description:	This dataset contains mineral element concentration in plant foliar tissues (Al, Ca, Fe, K, Mn, P, S, Si, and Zn) sampled between 16 August to 3 September 2019. Associated foliar stocks and annual foliar fluxes were calculated from 2017 biomass data (Jasinski et al., 2017) and NPP data (Schuur et al., 2007).
Number of Columns:	23

Table Structure

Object Name:

782_Foliar_mineral_element_concentration_stock_annual_flux_Gradient_2017.csv

Text Format:

Number of Header Lines:

Record Delimiter:

Line Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

;

Table Column Descriptions

Site

Year

Species

Plot

Measurement

Al_mean

Al_sd

Ca_mean

Ca_sd

Fe_mean

Fe_sd

K_mean

K_sd

Mn_mean

Mn_sd

P_mean

P_sd

S_mean

S_sd

Si_mean

Si_sd

Zn_mean

Zn_sd

Column Name:

Site

Year

Species

Plot

Measurement

Al_mean

Al_sd

Ca_mean

Ca_sd

Fe_mean

Fe_sd

K_mean

K_sd

Mn_mean

Mn_sd

P_mean

P_sd

S_mean

S_sd

Si_mean

Si_sd

Zn_mean

Zn_sd

Definition:

Name of site for measurement.

Year of the leaf sampling

Plant species

Degree of permafrost degradation of the sampled area

Type of measurement (Mineral element foliar concentration, stock and annual flux upon leaf litterfall)

Mean of the Al measurements

Standard deviation of the Al measurements

Mean of the Ca measurements

Standard deviation of the Ca measurements

Mean of the Fe measurements

Standard deviation of the Fe measurements

Mean of the K measurements

Standard deviation of the K measurements

Mean of the Mn measurements

Standard deviation of the Mn measurements

Mean of the P measurements

Standard deviation of the P measurements

Mean of the S measurements

Standard deviation of the S measurements

Mean of the Si measurements

Standard deviation of the Si measurements

Mean of the Zn measurements

Standard deviation of the Zn measurements

Storage Type:

string

integer

string

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Definition

Name of site for measurement.

Definition

Year of the leaf sampling

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	BN
Definition	Betula nana
Source

Code Definition

Code	EV
Definition	Eriophorum vaginatum
Source

Code Definition

Code	CX
Definition	Carex bigelowii
Source

Code Definition

Code	RC
Definition	Rubus chamaemorus
Source

Code Definition

Code	VUG
Definition	Vaccinium uliginosum
Source

Code Definition

Code	VVI
Definition	Vaccinium vitis-idaea
Source

Code Definition

Code	RO
Definition	Rhododendron subarcticum
Source

Code Definition

Code	MOSS
Definition	Mosses
Source

Code Definition

Code	LIC
Definition	lichens
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	MIN
Definition	Minimal
Source

Code Definition

Code	MOD
Definition	Moderate
Source

Code Definition

Code	EXT
Definition	Extensive
Source

Definition

Type of measurement (Mineral element foliar concentration, stock and annual flux upon leaf litterfall)

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Unit	mgkg-1
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

Data Use

This work has been produced as part of the Long Term Ecological Research Program and data users should adhere to the Data Use Agreement of the Long Term Ecological Research Network.

Citation

It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator(s), Year of Data Publication, Title of Dataset, Publisher, Dataset identifier, Dataset URL, Dataset DOI. For Example: Van Cleve, Keith; Chapin, F. Stuart; Ruess, Roger W. 2016. Bonanza Creek Experimental Forest: Hourly Temperature (sample, min, max) at 50 cm and 150 cm from 1988 to Present, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:1, http://www.lter.uaf.edu/data/data-detail/id/1. doi:10.6073/pasta/725db90d86686be13e6d6b2da5d61217.

Acknowledgement

The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example: Data are provided by the Bonanza Creek LTER, a partnership between the University of Alaska Fairbanks, and the U.S. Forest Service. Significant funding for collection of these data was provided by the National Science Foundation Long-Term Ecological Research program (NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629) and by the USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231).

Notification

The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed.

Collaboration

The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available in its present condition. The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Keywords

By Thesaurus:
Vegetation	plant leaves, mineral ewlements, foliar stock, foliar fluxes, litter composition

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

FIELD: Plant leaves were collected in August-Septembre 2019. At each site of specific degree of degradation (Minimal, Moderate and Extensive site), we sampled foliar tissues of 7 vascular species and 2 groups of non-vascular species (mosses and lichens) at 3 defined areas (approximately 5 square meters). They were stored in perfored bags and dried in ambiant air. Aboveground biomasses were determined by a non-destructive point frame method (Natali et al., 2012; Schuur et al., 2007; Shaver et al., 2001), in late July 2017. Ratios between foliar and aboveground biomass are described in Schuur et al. (2007). Estimation of the foliar productivity are described in Schuur et al. (2007). LAB: Ex-situ mineral element concentrations (Al, Ca, Fe, K, Mn, P, S, Si, and Zn) in leaves were determined on approximately 70 foliar samples at Gradient in 2019 using the non-destructive portable X-ray fluorescence (pXRF) device Niton xl3t Goldd+ (Thermo Fisher Scientific, Waltham, USA). For the measurement, we fixed a transparent film (prolene 4 micron) at the base of a circular plastic cap, in which we placed the dried and ground foliar sample powder in order to reach approximately 1 cm of sample thickness. We conducted the analyses in laboratory conditions, using a lead stand to protect the operator from X-rays emission, and total time of measurement was 90 seconds. To ensure trueness, the pXRF-measured concentrations were calibrated with another accurate wet chemistry method, using measurements by inductively coupled plasma optical emission spectroscopy (ICP-OES, iCAP 6500 ThermoFisher Scientific, Waltham, USA) after alkaline fusion, for 90 foliar samples.

Sampling Area and Study Extent

Sampling Description:

Sampling Frequency

Irregular

Sampling Extent:

Sampling Site:

Description:

EML -- Tussock tundra at treeline with permafrost thaw and thermokarst. This site is in the Eight Mile Lake Watershed, west of the town of Healy on Stampede Road, Interior Alaska. This area contains three sites on a permafrost thaw gradient and a nearby experimental snow fence manipulation.. Site alternate names:

Site Coordinates:

Longitude (degree):

-149.239569

Latitude (degree):

63.880708

Time Period

Begin:

2017-07-15

End:

2019-09-04

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Creators:

Individual:

Elisabeth Mauclet

Phone:

0032 10 47 36 42 (voice)

Email Address:

elisabeth.mauclet@uclouvain.be

Web Address:

https://sites.uclouvain.be/wethaw/

Individual:

Sophie Opfergelt

Phone:

0032 10 47 36 42 (voice)

Email Address:

sophie.opfergelt@uclouvain.be

Web Address:

https://sites.uclouvain.be/wethaw/

Individual:

Yannick Agnan

Position:

Professor

Phone:

00 32 10 47 36 27 (voice)

Email Address:

yannick.agnan@uclouvain.be

Individual:

Catherine Hirst

Phone:

0032 10 47 36 42 (voice)

Email Address:

catherine.hirst@uclouvain.be

Web Address:

https://sites.uclouvain.be/wethaw/

Individual:

Arthur Monhonval

Phone:

0032 1047 36 31 (voice)

Email Address:

arthur.monhonval@uclouvain.be

Web Address:

https://sites.uclouvain.be/wethaw/

Individual:

Justin Ledman

Position:

Site Technician

Address:

PO Box 18 Healy, AK 99743,

Healy, AK 99743 United States

Phone:

651-895-0474 (voice)

Email Address:

justin.ledman@gmail.com

Individual:

Meghan Taylor

Position:

Postdoctoral Researcher

Address:

Yale School of Forestry & Environmental Science,

New Haven, CT 06511 United States

Email Address:

meghan.taylor@yale.edu

Web Address:

https://bradfordlab.yale.edu/lab-profiles

Individual:

Edward Schuur

Position:

Senior Investigator

Address:

Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620,

Flagstaff, AZ 86011 United States

Phone:

(928) 523-8344 (voice)

Email Address:

Ted.Schuur@nau.edu

Web Address:

https://www2.nau.edu/schuurlab-p/

Organization:

Bonanza Creek LTER

Address:

Boreal Ecology Cooperative Research Unit ,

University of Alaska Fairbanks,

P.O. Box 756780 ,

Fairbanks, AK 99775 USA

Phone:

907-474-6364 (voice)

Phone:

907-474-6251 (fax)

Email Address:

uaf-bnz-im-team@alaska.edu

Web Address:

http://www.lter.uaf.edu

Contacts:

Organization:

Bonanza Creek LTER

Position:

Data Manager

Address:

Boreal Ecology Cooperative Research Unit ,

University of Alaska Fairbanks,

P.O. Box 756780 ,

Fairbanks, AK 99775 USA

Phone:

907-474-6364 (voice)

Phone:

907-474-6251 (fax)

Email Address:

uaf-bnz-im-team@alaska.edu

Web Address:

http://www.lter.uaf.edu

Metadata Providers:

Organization:

Bonanza Creek LTER

Position:

Data Manager

Address:

Boreal Ecology Cooperative Research Unit ,

University of Alaska Fairbanks,

P.O. Box 756780 ,

Fairbanks, AK 99775 USA

Phone:

907-474-6364 (voice)

Phone:

907-474-6251 (fax)

Email Address:

uaf-bnz-im-team@alaska.edu

Web Address:

http://www.lter.uaf.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2017-07-15

End:

2019-09-04

Sampling Site:

Description:

Dataset geographic description information is unavailable. {datafile/geoCoverage is empty}

Site Coordinates:

Longitude (degree):

-149.2535833

Latitude (degree):

63.87836111

Project

Parent Project Information:

Title:

The Bonanza Creek LTER

Personnel:

Individual:	Keith Van Cleve
Organization:	Bonanza Creek LTER
Position:	Lead Principal Investigator
Role:	Principal Investigator

Individual:

F.S. Stuart Chapin

Organization:

Bonanza Creek LTER

Position:

Lead Principal Investigator

Address:

Department of Biology and Wildlife; Institute of Arctic Biology: University of Alaska Fairbanks 193 Arctic Health P.O. Box 757000,

Fairbanks, AK 99775 United States

Phone:

(907) 455-6408 (voice)

Phone:

(907) 474-6967 (fax)

Email Address:

terry.chapin@alaska.edu

Web Address:

http://terrychapin.org/

Role:

Principal Investigator

Individual:

Roger W. Ruess

Organization:

Bonanza Creek LTER

Position:

Lead Principal Investigator

Address:

Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000,

Fairbanks, AK 99775-0180 United States

Phone:

(907) 474-7153 (voice)

Phone:

(907) 474-6967 (fax)

Email Address:

rwruess@alaska.edu

Web Address:

http://www.iab.uaf.edu/~roger_ruess/

Role:

Principal Investigator

Funding:

NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629

USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231)

Maintenance

Maintenance:

Description:

additional

This site is in the Eight Mile Watershed, West of the town of Healy on the Stampede Road, Interior Alaska. The EML research watershed contains 3 sites on a permafrost thaw gradient, and a nearby experimental snow fence manipulation. This dataset comes from the thaw gradient. Instrumentation: Element concentrations were determined on foliar samples by the non-destructive portable X-ray fluorescence (pXRF) device Niton xl3t Goldd+ (Thermo Fisher Scientific, Waltham, USA). The pXRF-measured concentrations were calibrated with another accurate wet chemistry method, using measurements by inductively coupled plasma optical emission spectroscopy (ICP-OES, iCAP 6500 ThermoFisher Scientific, Waltham, USA).

Status

Ongoing

Frequency:

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n '
        |___element 'metadata'
        |     |___text '\n '
        |     |___element 'unitList'
        |     |     |___text '\n'
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'mgkg-1'
        |     |     |___text '\n'
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'yyyy'
        |     |     |___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

Eight Mile Lake Research Watershed, Thaw Gradient: Foliar mineral element concentrations, stocks and annual litterfall fluxes estimated for July 2017

Data Entities

Data Table

Data Package Usage Rights

Data Use

Citation

Acknowledgement

Notification

Collaboration

Disclaimer

Keywords

Methods and Protocols

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

Methods

Sampling Frequency

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

additional

Status

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Eight Mile Lake Research Watershed, Thaw Gradient: Foliar mineral element concentrations, stocks and annual litterfall fluxes estimated for July 2017

+/- Data Entities

Data Table

+/- Data Package Usage Rights

Data Use

Citation

Acknowledgement

Notification

Collaboration

Disclaimer

+/- Keywords

+/- Methods and Protocols

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

Methods

Sampling Frequency

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

additional

Status

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata