Identification

Title

Ecosystem metabolism for an arctic warm spring-stream

Alternative title(s)

106.336

Abstract

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.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu//dataset/106.336

protocol: https

description: Dataset homepage

Unique resource identifier

code

106.336

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

inlandWaters

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

Resource Type

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Hydrological Stations

Keyword set

keyword value

Water Chemistry

Ecology

Chemistry

Arctic

Production

Biology

Terrestrial Ecosystems

Keyword set

keyword value

EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > FRESHWATER ECOSYSTEMS > RIVERS/STREAM

EARTH SCIENCE > BIOSPHERE > VEGETATION > PHOTOSYNTHETICALLY ACTIVE RADIATION

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > WATER TEMPERATURE

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > GASES > DISSOLVED GASES

originating controlled vocabulary

title

Global Change Master Directory (GCMD)

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-147.72067

East bounding longitude

-147.71943

North bounding latitude

69.02510

South bounding latitude

69.02367

Temporal reference

Temporal extent

Begin position

2007-03-01T00:00:00Z

End position

2009-08-31T23:59:59Z

Dataset reference date

date type

publication

effective date

2011-09-07T13:07:52Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Responsible party

organisation name

email address

huryn@bama.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Metadata date

2024-02-07T22:51:18Z

Metadata language

eng; USA