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LBA-ECO ND-11 Soil Properties of Forested Headwater Catchments, Mato Grosso, Brazil

Data Set Overview

Data setLBA-ECO ND-11 Soil Properties of Forested Headwater Catchments, Mato Grosso, Brazil
DOI10.3334/ORNLDAAC/914
Release date2009-03-31
ProjectLarge Scale Biosphere-Atmosphere
Time Period2004-05-01

Description

The results of the analysis of soil chemical parameters, texture, and color are reported for 185 georeferenced soil profile sample points over four forested headwater catchments near Juruena, Mato Grosso, Brazil (Novaes Filho, et al., 2007a and Novaes Filho, et al., 2007b). Samples were collected from an approximately 20 x 20 m grid over each watershed from 2004/05/01 to 2004/08/18. By sampling each location at depths of 0-20 and 40-60 cm it was possible to distinguish and map the principle soil classes found in the study area to the 2nd category level of the Brazilian System of Soil Classification (Cooper et al., 2005) associated with the topographic relief. The data set contains one comma separated ASCII data file with spatially referenced soil nutrient and organic carbon data from 0-20 cm (A layer, topsoil) and 40-60 cm (B layer, subsoil)depths for the Juruena watersheds study area. A satisfactory relationship between the redness index of the diagnostic horizons and the soil class colors was also found. In spite of the apparent homogeneity of the visible landscape characteristics such as slope, soil color, and vegetation, the carbon and soil clay attributes were found to vary greatly. This variability over small distances demonstrates that extrapolation of soil characteristics and soil carbon stocks to larger areas could produce erroneous results if the spatial variability of the soil attributes is not taken into consideration.

Documentation

Data set reference document

Citation

Folho Novaes, J.P., E.C. Selva, E.G. Couto, J. Lehmann, M.S. Johnson, and S.J. Riha. 2009. LBA-ECO ND-11 Soil Properties of Forested Headwater Catchments, Mato Grosso, Brazil. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/914
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Project

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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  • ND11_Soil_Spatial_Variability.pdf

Data Files

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Data File (Granule)File SizeDates
Juruena_basins_soils.csv 32.5 KB 2004-05-01 - 2004-08-18

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Files related to this data set have been downloaded on 79 occasions since 2009-03-25, totaling 142 files.