ORNL DAAC Data Set LBA-ECO TG-07 LONG-TERM SOIL GAS FLUX AND ROOT MORTALITY, TAPAJOS NATIONAL FOREST

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Project: LBA

Project: LBA
The Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) is an intensive scientific investigation of the tropical rainforest of Brazil and portions of adjacent countries. Like FIFE and BOREAS, this project uses intensive remote-sensing techniques and ground-based experiments to investigate the atmosphere-biosphere-hydrosphere dynamics of this large tropical region. The LBA Project encompasses several scientific disciplines, or components. The LBA-ECO component focuses on the question: "How do tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in Amazonia?"

Data Set: LBA-ECO TG-07 LONG-TERM SOIL GAS FLUX AND ROOT MORTALITY, TAPAJOS NATIONAL FOREST

Data Set: LBA-ECO TG-07 LONG-TERM SOIL GAS FLUX AND ROOT MORTALITY, TAPAJOS NATIONAL FOREST
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.

Detailed Documentation: Data Set Reference Document

Companion Files:

• TG07_Root_Mortality_Longterm.pdf

Citation:

Citation:
Silver, W.L., A.W. Thompson, M.E. McGroddy, R.K. Varner, J.R. Robertson, J.D. Dias, H. Silva, P. Crill, and M.M. Keller. 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] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/ORNLDAAC/1116

Data Set Files:

Download Data Set Files: (127.4 KBytes in 5 Files)
All Data Taken At Latitude: 3.02S, Longitude: 54.97W

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