Dataset and R codes for the paper: Dusenge ME, Warren JM, Reich PB, Ward EJ, Murphy BK, Stefanski A, Villanueva R, Cruz M, McLennan DA, King AW, Montgomery RA, Hanson PJ, Way DA. Boreal conifers maintain carbon uptake with warming despite failure to track optimal temperatures

This data set contains empirical physiological, morphological, and chemical data collected on two dominant conifer species, <em>Picea mariana </em>and <em>Larix laricina</em>, in June and August 2017 at the SPRUCE (Spruce and Peatland Responses Under Changing Environments) experiment that assesses the response of peatland ecosystems to whole-ecosystem warming and elevated atmospheric CO2 concentrations. The SPRUCE experiment is located 40 km north of Grand Rapids, MN, in the USDA Forest Service Marcell Experimental Forest.