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Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Winter ecosystem respiration measurements using soda lime, 2010-2019

General Information
Data Package:
Local Identifier:knb-lter-bnz.568.10
Title:Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Winter ecosystem respiration measurements using soda lime, 2010-2019
Alternate Identifier:DOI PLACE HOLDER
Abstract:

The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C, that comprises the bulk of the soil C pool, influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. Soda Lime absorption of CO2 over the winter season is a method of estimating cumulative soil respiration across the site.

Short Name:knb-lter-bnz.568.10
Publication Date:2019-11-20
For more information:
Visit: http://www.lter.uaf.edu/data/data-detail/id/568

Time Period
Begin:
2010-09-30
End:
2019-04-01

People and Organizations
Contact:Data Manager (Bonanza Creek LTER) [  email ]
Creator:Garnello, Anthony J (Ph.D Student)
Creator:Mauritz, Marguerite (Research Associate Professor)
Creator:Taylor, Meghan A. (Postdoctoral Researcher )
Creator:Ledman, Justin (Site Technician)
Creator:Webb, Elizabeth E 
Creator:Schuur, Edward A.G. (Senior Investigator)
Organization:Bonanza Creek LTER

Data Entities
Data Table Name:
568_EML_AK_CiPEHR-winter_Reco_soda_lime_2010-2019.csv
Description:
Contains per-bucket soda-lime weights organized by year, block, fence, and treatment.
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-bnz/568/10/fa0171a2f9a1eb8fce59fd475f33b1ce
Name:568_EML_AK_CiPEHR-winter_Reco_soda_lime_2010-2019.csv
Description:Contains per-bucket soda-lime weights organized by year, block, fence, and treatment.
Number of Columns:7

Table Structure
Object Name:568_EML_AK_CiPEHR-winter_Reco_soda_lime_2010-2019.csv
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Line Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 blockfencetreatmentgC/m^2yearBucket #Notes
Column Name:block  
fence  
treatment  
gC/m^2  
year  
Bucket #  
Notes  
Definition:experimental blocksnow fence replicate numbertreatment typegrams of carbon released per meter squared per winteryear of measurementsample bucket numberNotes
Storage Type:string  
integer  
string  
float  
string  
integer  
string  
Measurement Type:nominalnominalnominalrationominalnominalnominal
Measurement Values Domain:
Definitionexperimental block
Definitionsnow fence replicate number
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codec
Definitioncontrol; w=winter warming
Source
UnitgCO2-C/m^2
Typereal
Definitionyear of measurement
Definitionsample bucket number
DefinitionNotes
Missing Value Code:      
CodeNA
ExplMissing Value
      
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.

Additional Acknowledgements

The Schuur lab data provided on this site are freely available and were furnished by individual Schuur lab members who encourage their use. Please kindly inform in writing (or e-mail) the appropriate Schuur lab scientist(s) (PI) of how you intend to use the data and of any publication plans. It is also important to contact the Schuur lab investigator to assure you are downloading the latest revision of the data and to prevent potential misuse or misinterpretation of the data. Please acknowledge the data source as a citation. If the Schuur lab (PIs) feel that they should be acknowledged or offered participation as authors, they will let you know and we assume that an agreement on such matters will be reached before publishing and/or use of the data for publication. If your work directly competes with the Schuur lab analysis they may ask that they have the opportunity to submit a manuscript before you submit one that uses unpublished data. In addition, when publishing please acknowledge the agency that supported the research. Lastly, we kindly request that those publishing papers using Schuur lab data provide reprints to the PIs. [This statement taken from The Ameriflux Network data sharing policy]. Funding Acknowledgements: Department of Energy NICCR Program; Department of Energy Terrestrial Ecosystem Processes; National Science Foundation CAREER Program; National Parks Inventory and Monitoring Program; National Science Foundation Bonanza Creek LTER program; National Science Foundation Office of Polar Programs, Arctic Natural Sciences Program Data Credits: Peter Ganzlin, John Krapek, Catherine Johnston, Verity Salmon, Elizabeth Webb, Susan Natali, Aaron Bugaj, Justin Ledman, Kristyn Hill.

Keywords

By Thesaurus:
Biogeochemistrypermafrost, soil respiration, ecosystem respiration, carbon, carbon dioxide, fluxes, climate change, warming, winter

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:

Experimental Design

The study site at the Eight Mile Lake (EML) watershed is located in the northern foothills of the Alaska Range. While permafrost thaw can sometimes result in water ponding, depending on local topography, this landscape consists largely of relatively well-drained uplands. The CiPEHR experiments were established in 2008 to complement research along a natural permafrost thaw gradient, at an adjacent site. At the permafrost-thaw gradient site permafrost temperature has been monitored annually in a 30-m-deep borehole since1985, before the permafrost started to thaw. There are two experimental warming treatments at the CiPEHR project: Winter warming (WW) increases soil temperature and ground thaw using snow fences; Summer warming (SW) increases growing season air temperature using open top chambers. The warming treatments are applied in a blocked split-plot design to evaluate the seperate and combined effects of winter and summer warming. Soda Lime was only measured on the WW and control treatments (no SW). There were 12 measurements of each treatment (two soda lime buckets on each side of each snow fence).

Methods

FIELD: This data set was collected during the winters of 2010-2011, 2011-2012, 2012-2013, 2013-2014, and 2013-2014 at the manipulative warming experiment, CiPEHR. Bottomless 5 gallon buckets (diameter=~27cm) were inserted 15cm into the ground on the winter warming and control plots (n=6 replicates in 2010, and n=12 replicates in 2011-2015). In the fall of each year (22 Sept 2010; Sept 30 2011;Oct 1, 2012; Sept 30 2013 and 2014), 100-150 ml of water was added to each mason jar of soda lime, one open mason jar was placed in each bucket, and the bucket was immediately capped for the entirety of the winter. We also deployed mason jars (n=6) into capped buckets with the bottom still intact such that the soda lime was not exposed to the soil or the atmosphere. The soda lime was then left in the field for the duration of the winter and collected during the spring (April 26, 2011; April 27, 2012; May 29, 2013; 16 April 2014 and 20 April 2015). LAB: Prior to placing on-plot, we weighed 300g of 4-8 mesh soda lime into 1L mason jars and dried for 24 hours at 100degC. Immediately after removing from the drying oven, mason jars were capped and stored until deployment. In the spring, after deployment, the soda lime was dried for 240 hours at 100degC and 24 hours at 75degC, except in 2010, when the soda lime was dried for 144 hours at 80degC and then at 65degC for 31 hours.

Sampling Area and Study Extent
Sampling Description:

Sampling Frequency

Annually, measured over the entire winter period.

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): -149.239569Latitude (degree): 63.880708

Time Period
Begin:
2010-09-30
End:
2019-04-01

People and Organizations

Publishers:
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)
Creators:
Individual: Anthony J Garnello
Position:Ph.D Student
Address:
Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620,
Flagstaff, AZ 86011 United States
Phone:
928-300-2853 (voice)
Email Address:
AJG262@nau.edu
Web Address:
https://www2.nau.edu/schuurlab-p/
Individual: Marguerite Mauritz
Position:Research Associate Professor
Address:
University of Texas, El Paso, 500 W University,
El Paso, TX 79902 United States
Email Address:
memauritz@utep.edu
Web Address:
https://expertise.utep.edu/profiles/memauritz
Individual: Meghan A. 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: 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: Elizabeth E Webb
Address:
220 Bartram Hall; Department of Biology; University of Florida,
Gainesville, FL 32611 United States
Phone:
352-273-0135 (voice)
Email Address:
webbe@ufl.edu
Individual: Edward A.G. 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:
2010-09-30
End:
2019-04-01
Sampling Site: 
Description:Dataset geographic description information is unavailable. {datafile/geoCoverage is empty}
Site Coordinates:
Longitude (degree): -149.225556Latitude (degree): 63.883056

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:

corrections

The amount of carbon released over the winter was determined as follows: [(final soda lime weight, after drying)-(intial soda lime weight, after drying)-(average CO2 adsorption by blanks)] X 1.69/(soil surface area). The 1.69 multiplier is to correct for water loss associated with adsorption (Grogan 1998). The average blank adsoprtion (uncorrected) was 2.85,1.19, and 2.09 for 2010-11,2011-12, and 2012-13, respectively. The amount of CO2 adsorbed to soda lime (g CO2/m2) was converted to, and is reported as, gCO2-C/m2.

Status

Completed

Frequency:
Other Metadata

Additional Metadata

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        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'gCO2-C/m^2'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'yyyy-yyyy'
        |     |     |___text '\n      '
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