SPRUCE S1 Bog Plant-Available Nutrients Assessed with Ion-Exchange Resins from 2011-2012 in the Southern End of the S1 Bog

This data set consists of observations of plant-available nutrients assessed using ion-exchange resin capsules incubated serially in aerobic and anaerobic peat layers beginning in 2011. Data were collected from 2011 to 2012 (prior to the construction of the SPRUCE experimental plots) at the southern end of the S1 Bog at three depths in hollow microtopography only. PVC resin-access tubes (allowing repeated, and undisturbed access to the same soil location over time) were installed across hummock and hollow microtopography in the SPRUCE experimental plots. Resin capsules were placed into contact with the soil at the base of resin-access tubes and incubated in situ for approximately 28 days before collection and replacement with a new resin capsule. 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).