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LBA-ECO CD-09 Soil and Vegetation Characteristics, Tapajos National Forest, Brazil

Data Set Overview

Data setLBA-ECO CD-09 Soil and Vegetation Characteristics, Tapajos National Forest, Brazil
Release date2012-07-18
ProjectLarge Scale Biosphere-Atmosphere
Time Period1999-11-01


This data set reports the results of soil and vegetation surveys at four distinct areas within the Tapajos National Forest (TNF), 50 to 100 km south of Santarem, Para, Brazil, in November 1999. At 13 individual sites across the four areas, all located in primary forest, core soil samples at 10, 30 and 50 cm depths were collected and analyzed for dry mass, bulk density, texture, percentage carbon (C), percentage organic matter, and percentage nitrogen (N). At these 13 sites, vegetation was characterized for 250 m long by 10 m wide transects. Biomass was estimated for all stems over 10 cm DBH from allometric relationships for species, measured height, canopy dimension, and diameter. LAI was measured along the transect at 26 points with a LICOR LAI-2000. Canopy foliage samples were collected with a shotgun at dawn and leaf water potential was determined with a pressure chamber. Samples of foliage, wood, bark, fine roots, and litter were analyzed for %N, % C, delta 13C, and delta 15N. There are five comma-delimited ASCII data files with this data set.


Data set reference document


Williams, M., Y.E. Shimabukuro, and E.B. Rastetter. 2012. LBA-ECO CD-09 Soil and Vegetation Characteristics, Tapajos National Forest, Brazil. 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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  • CD09_Soils_Veg_Tapajos.pdf

Data Files

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Data File (Granule)File SizeDates
CD09_LAI_TNF.csv 8.0 KB 1999-11-01 - 1999-11-29
CD09_Vegetation_CN_TNF.csv 15.6 KB 1999-11-01 - 1999-11-29
CD09_Biomass_inventory_TNF.csv 126.9 KB 1999-11-01 - 1999-11-29
CD09_Soil_texture_C_and_N_TNF.csv 8.0 KB 1999-11-01 - 1999-11-29
CD09_Leaf_Water_Potential_TNF.csv 5.2 KB 1999-11-01 - 1999-11-29

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