Public Data Products

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SPRUCE Whole Ecosystems Warming (WEW) Environmental Data Beginning August 2015

This data set provides the environmental measurements collected during the implementation of operational methods to achieve both deep soil heating (0-3 m) and whole-ecosystem warming (WEW) appropriate to the scale of tall-stature, high-carbon, boreal forest peatlands. The methods were developed to allow scientists to provide a plausible set of ecosystem warming scenarios within which immediate and longer term (one decade) responses of organisms (microbes to trees) and ecosystem functions (carbon, water and nutrient cycles) could be measured.

Citation: 

Hanson PJ, Riggs JS, Nettles WR, Krassovski MB, Hook LA (2016) SPRUCE Whole Ecosystems Warming (WEW) Environmental Data Beginning August 2015. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.3334/CDIAC/spruce.032

SPRUCE Plot-Level Water Table Data Assessments for Absolute Elevations and Height with Respect to Mean Hollows Beginning in 2015

This data set provides a record of the half-hourly automated water table depth data collected for 12 SPRUCE plots (4, 6, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, and 21) beginning during deep peat heating (DPH) in 2015 and continuing throughout the whole ecosystem warming (WEW) manipulations for the SPRUCE Project (Hanson et al. 2017). Also provided are plot normalized data for water table depths with respect to mean hollow locations within each plot. The hollow referenced data provide the basis for the intercomparison of peat saturation or aeration across treatment plots.

Citation: 

Hanson, P.J., Phillips, J.R., Nettles, W.R., Pearson, K.J., Hook, L.A. 2020. SPRUCE Plot-Level Water Table Data Assessments for Absolute Elevations and Height with Respect to Mean Hollows Beginning in 2015. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.079/1608615

SPRUCE Warming Promotes the Use of Organic Matter as an Electron Acceptor in a Peatland: Supporting Data

These data are provided in support of the publication: Warming Promotes the Use of Organic Matter as an Electron Acceptor in a Peatland (Rush et al., 2021)

Citation: 

Rush, J.E., C.A. Zalman, G. Woerndle, E.L. Hanna, S.D. Bridgham, and J.K. Keller. 2021 SPRUCE Warming Promotes the Use of Organic Matter as an Electron Acceptor in a Peatland: Supporting Data. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.075/1582060

SPRUCE S1 Bog Production of Newly-Grown Fine Roots Assessed Using Root Ingrowth Cores in 2013

Given the ambiguity of distinguishing between living and dead roots in the anaerobic bog environment where dead tissues are highly preserved, root ingrowth cores were used to capture newly-grown fine roots during the 2013 growing season (June - October) at 20 locations at the southern end of the S1-Bog. Rates of fine root production were measured with root ingrowth cores and fine root traits were measured on roots that grew into ingrowth cores.

Citation: 

Iversen C.M, D. J. Brice, J. Childs, H. M. Vander Stel, V.G. Salmon. 2021. SPRUCE S1 Bog Production of Newly-Grown Fine Roots Assessed Using Root Ingrowth Cores in 2013. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.091/1782483

SPRUCE Vertical Profiles of CO2 and H2O Concentrations in Air in Experimental Plots Beginning in 2015

This dataset provides a record of hourly average CO2 and H2O concentrations in air at 4 vertical locations (0.5, 1, 2, and 4 m above ground level (agl)) on the central tower location for each of 13 SPRUCE experimental plots. Ten plots have enclosures (plots 4, 6, 8, 10, 11, 13, 16, 17, 19, and 20) and three plots (5, 7 and 21) are ambient locations without enclosures.  Data are included for measurement periods beginning in 2015 and extend throughout the whole ecosystem warming (WEW) manipulations for the SPRUCE Project (Hanson et al. 2016, 2017).

Citation: 

Hanson, P.J., Nettles, W.R., Riggs, J.S., Krassovski, M.B., Hook, L.A. 2021. SPRUCE CO2 and H2O Data Beginning In 2015. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.092/1784060

SPRUCE Soil Metabolome Responses to Whole Ecosystem Warming in SPRUCE Experimental Plots, August 2016

This dataset reports a suite of complementary environmental geochemical analyses of peat extracts and porewater samples from SPRUCE experimental plots across a range of whole ecosystem warming (WEW) temperature treatments collected in August of 2016. Results of peat extract analyses include NMR and GC-MS analyses of central metabolites, liquid chromatography mass spectra (LC-MS) analyses of lipids, and quantitative proteomics.

Citation: 

Rachel M. Wilson, Malak M. Tfaily, Max M. Kolton, Eric Johnston, Caitlin Petro, Cassandra M. Zalman, Paul J. Hanson, Heino M. Heyman, Jennifer Kyle, David W. Hoyt, Elizabeth K. Eder, Samuel O. Purvine, Randy K. Kolka, Stephen D. Sebestyen, Natalie A. Griffiths, Christopher W. Schadt, Jason K. Keller, Scott D. Bridgham, Jeffrey P. Chanton, and Joel E. Kostka. 2021. SPRUCE Soil Metabolome Responses to Whole Ecosystem Warming in SPRUCE Experimental Plots, August 2016. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.083/1647173

SPRUCE Plant Tissue Analyses from Experimental Plots Beginning 2017

This data set reports the results of elemental analyses of foliar and stem/woody twig plant tissues collected at the SPRUCE site since 2014. Samples were obtained at various locations around the S1 Bog and from within the experimental treatment plots. These are treatment vegetation samples. 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).

Citation: 

Phillips, J.R., P.J. Hanson, and J.M. Warren. 2021. SPRUCE Plant Tissue Analyses from Experimental Plots Beginning 2017. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.090/1780604

 

SPRUCE S1 Bog and Bog Lake Fen Moss Decomposition and Litter Chemistry Data, 2014-2019

This data set includes measurements of mass loss, decay rate, and litter chemistry of mosses decomposing in the S1 Bog and Bog Lake Fen located in the USDA Forest Service Marcell Experimental Forest (MEF) in northern Minnesota, 40 km north of Grand Rapids. A litterbag experiment was used to estimate decay rates of 3 different moss types (Sphagnum magellanicum, Sphagnum angustifolium/fallax, and Polytrichum sp.) from mass loss measurements after one and five years in hummock and hollow microtopographies in the bog and lawn microtopography in the poor fen.

Citation: 

Shelley, S.J., Brice, D.J., Iversen, C.M., Kolka, R.K., and Griffiths, N.A. 2021. SPRUCE S1 Bog and Bog Lake Fen Moss Decomposition and Litter Chemistry Data, 2014-2019. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.089/1777909

SPRUCE Outflow Chemistry Data for Experimental Plots Beginning in 2016

This data set includes the chemistry of outflow waters in the SPRUCE experiment plots located in the S1 bog of the USDA Forest Service Marcell Experimental Forest (MEF) in northern Minnesota, 40 km north of Grand Rapids. These data are post-treatment data from the warming and elevated carbon dioxide (CO2) treatments associated with the SPRUCE experiment. There are ten experimental plots in SPRUCE: five temperature treatments (+0, +2.25, +4.5, +6.75, +9°C) at ambient CO2, and the same five temperature treatments at elevated CO2 (+500 ppm).

Citation: 

Sebestyen, S. D., Griffiths, N. A., Oleheiser, K. C., Stelling, J. M., Pierce, C. E., Nater, E. A., Wilson, R. M., Chanton, J. P., Hall, S. J., Curtinrich, H. J., Toner, B. M., and Kolka, R. K. 2021. SPRUCE Outflow Chemistry Data for Experimental Plots Beginning in 2016. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.088/1775142

SPRUCE Porewater Chemistry Data for Experimental Plots Beginning in 2013

This data set reports the chemistry of porewater in the SPRUCE plots located in the S1 bog. Sample collection and analyses started in August of 2013 and will continue for the duration of the experiment.Results will be added to this data set and released to the public periodically as quality assurance and publication of results are accomplished. This April 2021 release (version 3) is an updated and expanded version and replaces the previous release.

Citation: 

Griffiths, N. A., Sebestyen, S. D., Oleheiser, K. C., Stelling, J. M., Pierce, C. E., Nater, E. A., Toner, B. M., & Kolka, R. K. 2016. SPRUCE Porewater Chemistry Data for Experimental Plots Beginning in 2013. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.3334/CDIAC/spruce.028