106.336_Ecosystem_metabolism_for_an_arctic_warm_spring-stream_ISO.xml
eng; USA
utf8
dataset
Alexander D. Huryn
huryn@bama.edu
pointOfContact
Alexander D. Huryn
huryn@bama.edu
author
Jonathan P. Benstead
205-348-9034
jbenstead@bama.ua.edu
author
Alexander D. Huryn
huryn@bama.edu
originator
Alexander D. Huryn
huryn@bama.edu
principalInvestigator
Jonathan P. Benstead
205-348-9034
jbenstead@bama.ua.edu
principalInvestigator
2024-03-29
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
https://data.eol.ucar.edu/dataset/106.336
Ecosystem metabolism for an arctic warm spring-stream
2011-09-07T13:07:52Z
publication
1.0
2011-09-07T13:07:52Z
Ecosystem metabolism for an arctic warm spring-stream
2011-09-07T13:07:52Z
creation
UCAR/NCAR - Earth Observing Laboratory
EOL Data Support
PO Box 3000
Boulder
CO
80307-3000
datahelp@eol.ucar.edu
https://data.eol.ucar.edu/
homepage
resourceProvider
106.336
doi:10.5065/D6WH2N4K
UCAR/NCAR - Earth Observing Laboratory
EOL Data Support
PO Box 3000
Boulder
CO
80307-3000
datahelp@eol.ucar.edu
https://data.eol.ucar.edu/
homepage
custodian
Alexander D. Huryn
huryn@bama.edu
author
Jonathan P. Benstead
205-348-9034
jbenstead@bama.ua.edu
author
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.
Alexander D. Huryn
huryn@bama.edu
pointOfContact
Hydrological Stations
platform
Biology
Arctic
Production
Terrestrial Ecosystems
Ecology
Chemistry
Water Chemistry
eng
inlandWaters
-147.72067
-147.71943
69.02367
69.02510
2007-03-01T00:00:00Z
2009-08-31T23:59:59Z
https://data.eol.ucar.edu/dataset/106.336
https
Ecosystem metabolism for an arctic warm spring-stream homepage
Dataset homepage
https://data.eol.ucar.edu/project/ACADIS
https
Advanced Cooperative Arctic Data and Information Service
Project homepage
https://data.eol.ucar.edu/project/ARCSS
https
NSF Arctic System Science
Project homepage