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| Wolski,Mario Sergio; Dalmolin,Ricardo Simão Diniz; Flores,Carlos Alberto; Moura-Bueno,Jean Michel; Caten,Alexandre ten; Kaiser,Douglas Rodrigo. |
| Abstract: The objective of this work was to test the extrapolation of soil-landscape relationships in a reference area (RA) to a topographic map (scale 1:50,000), using digital soil mapping (DSM), and to compare these results to those obtained in similar studies previously conducted in Brazil. A soil survey in a 10 km2 RA, using conventional mapping techniques (scale 1:10,000), was made in order to map a 678 km2 physiographically similar area (scale 1:50,000) using DSM. The decision tree technique was employed to build a predictive extrapolation model based on soil classes and eight terrain attributes in the RA. The validation of DSM by application of field observation points resulted in a 66.1% global accuracy and in 0.36 kappa index. The most... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Landscape stratification; Pedometrics; Predictive soil mapping; Reference area; Terrain attributes.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000800633 |
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