Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Photo- and Biodegradation of Dissolved Organic Carbon from a Permafrost Landscape: Experimental Incubation Data

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. We investigated DOC degradation from DOC samples collected from the CiPEHR site wells and from upslope (USPC) and downslope (DSPC) streams in the CiPEHR watershed. This dataset contains data from an experimental incubation of these DOC samples measured periodically over the course of 60 days and include DOC concentration and radiocarbon measurements.