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LBA-ECO TG-07 Soil Trace Gas Flux and Root Mortality, Tapajos National Forest

Data Set Overview

Data setLBA-ECO TG-07 Soil Trace Gas Flux and Root Mortality, Tapajos National Forest
Release date2009-04-30
ProjectLarge Scale Biosphere-Atmosphere
Time Period2000-06-04 to 2001-05-15


This data set reports the results of an experiment that tested the short-term effects of root mortality on the soil-atmosphere fluxes of nitrous oxide, nitric oxide, methane, and carbon dioxide in a tropical evergreen forest. Weekly trace gas fluxes are provided for treatment and control plots on sand and clay tropical forest soils in two comma separated ASCII files. The study site in the Tapajos National Forest (TNF) is near km 83 on the Santarem-Cuiaba Highway south of Santarem, Para, Brazil. 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. Monthly data are not included at this time.


Data set reference document


Varner, R.K., and M.M. Keller. 2009. LBA-ECO TG-07 Soil Trace Gas Flux and Root Mortality, Tapajos National Forest. ORNL DAAC, Oak Ridge, Tennessee, USA.
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Large Scale Biosphere-Atmosphere : 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?"

Project data set list for Large Scale Biosphere-Atmosphere .

Companion Files

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  • TG07_Root_Mortality_Experiment.pdf

Data Files

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Data File (Granule)File SizeDates
Trench_10weeks_NO_CO2.csv 17.7 KB 2000-06-04 - 2001-05-15
Trench_10weeks_N2O_CH4.csv 15.4 KB 2000-06-04 - 2001-05-15

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Files related to this data set have been downloaded on 47 occasions since 2009-06-04, totaling 119 files.