Ecosystem metabolism for an arctic warm spring-stream

This dataset investigated the productivity of a perennial, Arctic spring-stream. Ivishak Spring has the stable discharge (~131 L/s) and temperature (~4-8 deg C) typical for springs. It is unusual, however, in having an annual cycle of daylight from 24 hrs/d (summer) to 0 hrs/d (winter). It tested the hypothesis that stored detritus would buffer carbon limitation during winter when gross primary production (GPP) is minimized, resulting in constant rates of community respiration (CR) year-round due to constant temperatures. It used open-channel methods to measure GPP and CR monthly from March 2007 to August 2009. Mean annual GPP was 458 gC/m2. Such a level is typical for temperate desert-streams but was surprising for an Arctic stream. Annual CR (887 gC/m2) was also remarkable. The high metabolism of this stream is explained by an open canopy, moderate year-round temperatures, stable bed, and high bryophyte biomass (48 gAFDM/m2). Strong seasonal cycles of GPP were mirrored by CR (r=0.65) indicating the possibility of carbon limitation during winter. This result falsified our hypothesis that CR would be relatively stable year-round due to a detritus buffer and constant temperature The data are in tab delimited, and Excel spreadsheet files.

Note: these data are in process, with updates possible.

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Temporal Range

  • Begin:  2007-03-01T00:00:00Z
    End:  2009-08-31T23:59:59Z

Keywords

Resource Type dataset
Temporal Range Begin 2007-03-01T00:00:00Z
Temporal Range End 2009-08-31T23:59:59Z
Temporal Resolution N/A
Bounding Box North Lat 69.02510
Bounding Box South Lat 69.02367
Bounding Box West Long -147.72067
Bounding Box East Long -147.71943
Spatial Representation grid
Spatial Resolution N/A
Related Links

Documentation #1 : Ivishak_Spring_DIEL_LT_AP_DO_TEMP_README_file.pdf

106.350 : is a companion to dataset 106.336

Additional Information N/A
Resource Format ZIP: PKZIP (application/zip)
Standardized Resource Format Archive
Asset Size 2 MB
Legal Constraints

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Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization UCAR/NCAR - Earth Observing Laboratory
Distributor UCAR/NCAR - Earth Observing Laboratory
Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
Metadata Contact Organization UCAR/NCAR - Earth Observing Laboratory

Author Alexander D. Huryn
Jonathan P. Benstead
Publisher UCAR/NCAR - Earth Observing Laboratory
Publication Date 2011-09-07T13:07:52
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier 106.336
Resource Version 1.0
Topic Category inlandWaters
Progress completed
Metadata Date 2024-02-07T22:51:18Z
Metadata Record Identifier edu.ucar.eol::106.336
Metadata Language eng; USA
Suggested Citation Alexander D. Huryn, Jonathan P. Benstead. (2011). Ecosystem metabolism for an arctic warm spring-stream. 1.0. UCAR/NCAR - Earth Observing Laboratory. https://data.eol.ucar.edu//dataset/106.336. Accessed 22 November 2024.

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