250 m-gridded soil texture at multiple depths of Midwest Brazil
Raúl Roberto Poppiel,
Marilusa Pinto Coelho Lacerda,
Marilusa Pinto Coelho LacerdaUniversity of Brasiliaconceptualization, supervision, writing-review
José Lucas Safanelli,
José Lucas SafanelliUniversity of sao Pauloconceptualization, structure, processing, writing-review
Computer ScienceUniversity of Sao Pauloconceptualization, structure, processing, writing-review
Manuel Pereira Oliveira Jr,
UnspecifiedUniversity of Brasiliafield and laboratory work, writing-review
Jean Jesus Novais,
Jean Jesus NovaisUniversity of Brasiliafield and laboratory work, writing-review
José Alexandre Melo Demattê
UnspecifiedUniversity of Sao Pauloconceptualization, supervision, writing-review
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.
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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The files associated with this dataset are licensed under a Creative Commons Attribution 4.0 International licence.