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    Author(s): W. L. Silver; A. W. Thompson; M. E. McGroddy; R. K. Varner; J. R. Robertson; J. D. Dias; H. Silva; P. Crill; M. Keller
    Date: 2012
    Source: Available on-line [http://daac.ornl.gov]. Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee. http://daac.ornl.gov/LBA/guides/TG07_Root_Mortality_Longterm.html
    Publication Series: Miscellaneous
    Station: International Institute of Tropical Forestry
    PDF: Download Publication  (1023.25 KB)

    Description

    This data set reports measurements of trace gas fluxes of methane (CH4), nitric oxide (N2O), nitrous oxide (NO), carbon dioxide (CO2) from soils at a study site in the Tapajos National Forest (TNF), near the km 83 on the Santarem-Cuiaba Highway south of Santarem, Para, Brazil. Data for root mass and carbon content, soil nitrogen (N), nitrification, and moisture content are also provided. There are five comma-delimited data files with this data set. The research was conducted to test the effects of root mortality on the soil-atmosphere trace-gas fluxes over the course of one year. Root mortality was induced by isolating blocks of land to 1 m depth using trenching and root exclusion screening. Gas fluxes were measured weekly for ten weeks following the trenching treatment and monthly for the remainder of the year. Note: The related data set LBA-ECO TG-07 Soil Trace Gas Flux and Root Mortality, Tapajos National Forest contains the same flux data that were measured weekly for ten weeks following the trenching treatment. This data set also provides the monthly data for the remainder of the year.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Silver, W. L.; Thompson, A. W.; McGroddy, M. E.; Varner , R. K.; Robertson, J. R.; Dias, J. D.; Silva, H.; Crill, P.; Keller, M. 2012. LBA-ECO TG-07 Long-term soil gas flux and root mortality, Tapajos National Forest. Data set. Available on-line [http://daac.ornl.gov]. Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee.

    Keywords

    Amazon, metadata, Brazil, trace gas flux

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