Public Data Products

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SPRUCE Deep Peat Heating (DPH) Peat Water Content and Temperature Profiles for Experimental Plot Cores, June 2014 through June 2015

This data set provides the peat water content and peat temperature at time of sampling for peat cores collected before and during the SPRUCE Deep Peat Heating (DPH) study. Cores were collected during three sampling events: 03 June 2014, 09 September 2014, and 16 June 2015.

Two cores were extracted from hollow locations in each of the 10 experimental plots (4, 6, 8, 10, 11, 13, 16, 17, 19, and 20). Cores were partitioned into samples at 11 depth increments: 0-10, 10-20, 20-30, 30-40, 40-50, 50-75, 75-100, 100-125, 125-150, 150-175, and 175-200 cm below surface of the hollow.

Citation: 

Kluber, Laurel A., Jana R. Phillips, Paul J. Hanson, Christopher W. Schadt. 2016. SPRUCE Deep Peat Heating (DPH) Peat Water Content and Temperature Profiles for Experimental Plot Cores, June 2014 through June 2015. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.029

SPRUCE Large-Collar In Situ CO2 and CH4 Flux Data for the SPRUCE Experimental Plots

This data set reports community-level CO2 and CH4 flux measurements for the SPRUCE experimental study plots located in the S1-Bog. Surface flux measurements of CO2 and CH4 were made using open-path analyzers over an area of 1.13 m2 within each of 16 plots.  A custom-designed chamber encloses the hummock-hollow topography and allows point in time measurements of the shrub, forb, Sphagnum spp. and the complex microbial community.

Citation: 

Hanson, P.J., J.R. Phillips, J.S. Riggs, W.R. Nettles, and D.E. Todd. 2014. SPRUCE Large-Collar In Situ CO2 and CH4 Flux Data for the SPRUCE Experimental Plots. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.006

SPRUCE Representing Northern Peatland Microtopography and Hydrology within the Community Land Model: Modeling Archive

Here we provide model code, inputs, outputs and evaluation datasets for a new configuration of the Community Land Model (CLM) for SPRUCE, which includes a fully prognostic water table calculation for SPRUCE.

Citation: 

Shi, X., Thornton, P. E., Ricciuto, D. M., Hanson, P. J., Mao, J., Sebestyen, S. D., Griffiths, N. A., and Bisht, G. 2016. SPRUCE Representing Northern Peatland Microtopography and Hydrology within the Community Land Model: Modeling Archive. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.031

SPRUCE S1-Bog Phenology Movies, 2010-2016

This data set provides annual movies created from daily and twice daily images of vegetation stands in the S1 Bog showing the seasonal changes of vegetation and appearance and disappearance of snow for the period June 2010 through December 2015. Compiled movies are useful for examining the phenology of the bog and the changes to the landscape as experimental facilities have been constructed.

Citation: 

Hanson, P.J., J.S. Riggs, L.A. Hook, and W.R. Nettles. 2015. SPRUCE S1-Bog Phenology Movies, 2010-2016. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.011.

SPRUCE S1 Bog and SPRUCE Experiment Location Survey Results, 2015 and 2020

This data set provides results from two horizontal and vertical surveys (2015, 2020) of SPRUCE experimental infrastructure and measurement locations on the S1 bog on the Marcell Experimental Forest and the SPRUCE experimental site within the S1 bog.

Citation: 

Griffiths, N.A., L.A. Hook and P.J. Hanson. 2016. SPRUCE S1 Bog and SPRUCE Experiment Location Survey Results, 2015 and 2020. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.3334/CDIAC/spruce.015

SPRUCE S1 Bog Pretreatment Photosynthesis and Respiration for Black Spruce: 2010-2013

This data set contains biochemical, morphological, and physiological data collected between 2010 and 2013 on mature black spruce (Picea mariana) trees at the S1 bog site in northern Minnesota, located 40 km north of Grand Rapids in the USDA Forest Service Marcell Experimental Forest (MEF). These data were collected prior to the initiating of heating and elevation of CO2 for the SPRUCE experiment to assess the response of northern peatland ecosystems to increases in temperature and exposures to elevated atmospheric CO2 concentrations.

Citation: 

Jensen, A.M., J.M. Warren, P.J. Hanson, J. Childs, and S.D. Wullschleger. 2015. SPRUCE S1 Bog Pretreatment Photosynthesis and Respiration for Black Spruce: 2010-2013. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.007

Access SPRUCE Microbial Community Metagenome, Lin et al., 2014

Microbial Metabolic Potential for Carbon Degradation and Nutrient (Nitrogen and Phosphorus) Acquisition in an Ombrotrophic Peatland

Xueju Lin, Malak M. Tfaily, Stefan J. Green, J. Megan Steinweg, Patrick Chanton, Aopeau Imvittaya, Jeffrey P. Chanton, William Cooper, Christopher Schadt and Joel E. Kostka

Appl. Environ. Microbiol. 2014, 80(11):3531. DOI: 10.1128/AEM.00206-14.

SPRUCE S1 Bog Peat Depth Determined by Push Probe and GPR: 2009-2010

This data set reports the thickness of peat for the S1 Bog measured directly with manual push probes on September 21 and 22, 2009, and measured by ground penetrating radar (GPR) across transects from January 26 to February 2, 2010 and June 2 to June 9, 2010. Also included are interpolated values of peat depth from both probe and GPR data for the S1 Bog at 1 meter square horizontal resolution.

Citation: 

Slater, L., P.J. Hanson, and L.A. Hook. 2012. SPRUCE S1 Bog Peat Depth Determined by Push Probe and GPR: 2009-2010. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.3334/CDIAC/spruce.002

SPRUCE S1 Bog Vegetation Allometric and Biomass Data: 2010-2011

This data set reports the results of measurements on sampled aboveground tissues of trees (Picea mariana and Larix laricina), shrubs (Ledum, Chamaedaphne, and Vaccinium), and ground layer vegetation (all species) of the S1 Bog located in areas adjacent to planned experimental study plots.  Ground layer vegetation was sampled from both hummocks and hollows, within a 0.25 m2 plot, to evaluate total standing biomass of bog vegetation at or near the peak of annual production.  Vegetation was harvested, processed, and measured in July of 2010 and agai

Citation: 

Hanson, P.J., Brice, D., Garten, C.T., L.A. Hook, Phillips, J., and D.E. Todd. 2012. SPRUCE S1 Bog Vegetation Allometric and Biomass Data: 2010-2011. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.3334/CDIAC/spruce.004

SPRUCE S1 Bog Vegetation Survey and Peat Depth Data: 2009

This data set reports the results of a field survey of the S1 Bog to characterize the vegetation and to determine peat depth. The survey was conducted on September 21 and 22, 2009. The initial survey of vegetation and peat depth characteristics of the target bog was conducted to evaluate the logical locations for installing replicated experimental blocks for SPRUCE.  The goal was to identify multiple locations of uniform aboveground vegetation and belowground peat depth for positioning experimental units within the bog.

Citation: 

Hanson, P.J., U.S. Forest Service Staff, and SPRUCE Team. 2012. SPRUCE S1 Bog Vegetation Survey and Peat Depth Data: 2009. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.003