Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Weekly dark CO2 fluxes, 2014

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. How does warming impact the phenology of dominant plant species? This data contains manual CO2 flux measurements collected using a dark, portable CO2 flux chamber. These measurements are intended to estimate daytime ecosystem respiration to provide some validation for ecosystem respiration modeled with an exponential temperature response from clear, automated CO2 flux chambers at this same site. Dark flux measurements were taken weekly from 25 April 2014 to 23 Sep 2014.