SPRUCE S1 Bog Seasonal Patterns of Nonstructural Carbohydrates in Larix, Picea, Rhododendron, and Chamaedaphne, 2013

This dataset reports the results of nonstructural carbohydrate (NSC) analyses of foliage/twig/root tissues collected at the SPRUCE site in 2013. Samples were obtained at various locations around the S1 Bog. These are pretreatment vegetation samples, collected prior to initiation of the SPRUCE experiment heating and elevated CO2 treatments. The experimental work was conducted in a Picea mariana [black spruce] – Sphagnum spp. bog forest in northern Minnesota, 40 km north of Grand Rapids, in the USDA Forest Service Marcell Experimental Forest (MEF). For black spruce and eastern tamarack, coarse roots with developed secondary xylem as well as multi-year (1-2 years) woody branch samples were collected from mature trees approximately 5-8 m tall. For bog Labrador tea and leatherleaf, current year leaves (2013) and multi-year (1-2 years) woody branch samples were collected. Branch samples included phloem for NSC analyses. We selected our samples from tissues that were previously collected for a different purpose during 2013 field campaigns at the Marcell Experimental Forest.