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LBA-ECO ND-08 Biomass, Nutrients, and Decomposition in Eucalyptus and Primary Forests

Data Set Overview

Data setLBA-ECO ND-08 Biomass, Nutrients, and Decomposition in Eucalyptus and Primary Forests
Release date2013-03-07
ProjectLarge Scale Biosphere-Atmosphere
Time Period1999-07-01 to 2001-12-31


This data set reports the concentrations of the nutrients nitrogen (N), phosphorus (P), magnesium (Mg), calcium (Ca), and potassium (K) in roots, litterfall, leaves, and twigs, biomass of fine roots and litterfall, and the decomposition of leaves and twigs in samples that were collected on the property of Jari Celulose, Monte Dourado, Para, Brazil, from 1999-2001. Samples were collected from two study sites, a eucalyptus plantation and an adjacent primary forest, during both rainy and dry seasons. Roots were sampled from three depths (0-15 cm, 35-50 cm, and 85-100 cm). There are five comma-delimited data files with this data set. DATA QUALITY STATEMENT: The Data Center has determined that there are questions about the quality of the data reported in this data set. The data set has missing or incomplete data, metadata, or other documentation that diminishes the usability of the products. KNOWN PROBLEMS: The data files do not identify the year in which samples were collected. The methods for nutrient, decomposition, and biomass sampling and analyses were not provided. The data file descriptions indicate that samples were collected from two soil types (sandy and clay) but there is no documentation of which data field provides that information. Also, there is no documentation for the Location or Block fields in the data files.


Data set reference document


McNabb, K., M. Menezes, R.K. De Paixao, and E. Savaris. 2013. LBA-ECO ND-08 Biomass, Nutrients, and Decomposition in Eucalyptus and Primary Forests. 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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  • ND08_Biomass_Jari.pdf

Data Files

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Data File (Granule)File SizeDates
ND08_Fine_Root_Biomass.csv 51.0 KB 1999-07-01 - 2001-12-31
ND08_Leaf_Decomposition_Data.csv 23.6 KB 1999-07-01 - 2001-12-31
ND08_Fine_Root_Nutrients.csv 18.7 KB 1999-07-01 - 2001-12-31
ND08_Twig_Decomposition_Data.csv 20.9 KB 1999-07-01 - 2001-12-31
ND08_Litterfall_Data.csv 42.7 KB 1999-07-01 - 2001-12-31

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Files related to this data set have been downloaded on 22 occasions since 2013-05-29, totaling 111 files.