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LBA-ECO TG-07 Ground-based Biometry Data at km 83 Site, Tapajos National Forest: 1997

Data Set Overview

Data setLBA-ECO TG-07 Ground-based Biometry Data at km 83 Site, Tapajos National Forest: 1997
Release date2009-04-30
ProjectLarge Scale Biosphere-Atmosphere
Time Period1997-03-01


A field inventory of trees was conducted in March of 1997 in a logging concession at the Tapajos National Forest, south of Santarem, Para, Brazil. The inventory was conducted by the foresters and technicians of the Tropical Forest Foundation (FFT) and included all trees with diameter at breast height greater than or equal to 35 cm. Four blocks of approximately 100 ha each within the 3,200 ha concession were inventoried. Within each block, parallel trails 50 m apart were established, and the location of each tree measured was recorded to the nearest meter using an orthogonal coordinate system based on these trails. Field data for each tree includes: identification number, ground position, diameter, common name, scientific name and qualitative estimates of bole and canopy quality. Data are provided in one ASCII comma separated file. These data were used to calculate above-ground live biomass as described in Keller et al. (2001), but biomass data are not included in this data set.


Data set reference document


Keller, M.M., and M.W. Palace. 2009. LBA-ECO TG-07 Ground-based Biometry Data at km 83 Site, Tapajos National Forest: 1997. 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?"

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Companion Files

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  • TG07_FFT_Survey_Km83.pdf

Data Files

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Data File (Granule)File SizeDates
TG07_FFT_Survey_Km83.csv 2.3 MB 1997-03-01 - 1997-03-31

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Files related to this data set have been downloaded on 59 occasions since 2009-03-31, totaling 110 files.