Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Dissolved Organic Carbon 2007-2017

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 have dissolved organic carbon concentrations and radiocarbon ages changed over interannual and seasonal time? How do DOC concentrations correlate with environmental variables, such as precipitation, thaw depth, water table depth, and soil temperatures? This dataset contains dissolved organic carbon (DOC) concentrations and radiocarbon values from streams draining a permafrost research site at Eight Mile Lake, AK. Several sampling years include multiple annual sampling dates, while other years include only one sampling date. Not every location was sampled every year, and not every parameter was measured every year. The dataset will continue into 2017 but whether it will be maintained after that year is unknown.