Rooting depth distribution in the bog.Initial root biomass depth distribution (along with peat characteristics and chemistry) was determined prior to initiation of SPRUCE experimental treatments by taking 3-m deep soil cores in hummock-hollow microtopography in each experimental plot in August, 2012.
Rooting depth distribution in the bog is extremely shallow, with most living roots found in surface peat (Iversen et al., 2018). Indeed, we found that shrub roots below the average summer water table level were highly-preserved, but dead, roots with a 14C age of up to 5000 years! |
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Publications.Iversen CM, Childs J, Norby RJ, Ontl TA, Kolka RK, Brice DJ, McFarlane KJ, Hanson PJ. 2018. Fine-root growth in a forested bog is seasonally dynamic, but shallowly distributed in nutrient-poor peat. Plant and Soil 424: 123-143.
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This research is funded by the Office of Biological and Environmental Research in the U.S. Department of Energy's Office of Science.