250 m-gridded soil texture at multiple depths of Midwest Brazil

Published: 28 Jan 2020 | Version 4 | DOI: 10.17632/52cfcm3xr7.4
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Description of this data

Maps of clay, silt and sand contents (g kg-1) were predicted at 0-20 cm, 20-60 cm and 60-100 cm depths intervals by random forest regression in Google Earth Engine. Gridded soil information covers a part of the Midwest Brazil, from 12° S to 20° S and from 45° W to 54° W, and is available with 250m resolution. The maps were cross-validated and had Coefficient of Determination ranging from 0.64 to 0.85 at all depth intervals.

Experiment data files

Steps to reproduce

We aggregated soil clay, silt and sand data from 7,908 sites of the Brazilian Soil Spectral Library and 231 of the Free Brazilian Repository for Open Soil Data. We predicted values at 0-20 cm, 20-60 and 60-100 depth intervals by using 33 soil covariates and Random Forest modelling-based optimization in Google Earth Engine. Native resolution of 30 m was reduced to 250 m by computing the mean values.

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Latest version

  • Version 4

    2020-01-28

    Published: 2020-01-28

    DOI: 10.17632/52cfcm3xr7.4

    Cite this dataset

    Poppiel, Raúl Roberto; Lacerda, Marilusa Pinto Coelho; Safanelli, José Lucas; Rizzo, Rodnei; Oliveira Jr, Manuel Pereira; Novais, Jean Jesus; Demattê, José Alexandre Melo (2020), “250 m-gridded soil texture at multiple depths of Midwest Brazil”, Mendeley Data, v4 http://dx.doi.org/10.17632/52cfcm3xr7.4

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Institutions

Universidade de Brasilia, Universidade de Sao Paulo Campus Luiz de Queiroz

Categories

Ecology, Geology, Pedology, Soil Geography, Soil Management

Licence

CC BY 4.0 Learn more

The files associated with this dataset are licensed under a Creative Commons Attribution 4.0 International licence.

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