Ecosystem metabolism for an arctic warm spring-stream (Ivishak Hot Spring, Alaska)

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. README: Consult the data set README for more information about the physical location of the measurement, instrument description, data collection and processing, data remarks, and data formats.

Location Information: Ivishak spring is a tributary of the Ivishak River, a braided river that flows through the Arctic National Wildlife Refuge (ANWR) on the North Slope of the Brooks Range, Alaska.