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All publications of “Ivan Luiz Zilli Bacic”

2 results

A Regional Legacy Soil Dataset for Prediction of Sand and Clay Content with Vis-Nir-Swir, in Southern Brazil

Elisângela Benedet Silva ORCID logo , Élvio Giasson ORCID logo , André Carnieletto Dotto ORCID logo , Alexandre ten Caten ORCID logo , José Alexandre Melo Demattê ORCID logo , Ivan Luiz Zilli Bacic ORCID logo , [...]


ABSTRACT The success of soil prediction by VIS-NIR-SWIR spectroscopy has led to considerable investment in large soil spectral libraries. The aims of this study were 1) to develop a soil VIS-NIR-SWIR spectroscopy approach using legacy soil samples to improve spectral soil information in a regional scale; (2) to compare six spectral preprocessing techniques; and (3) to compare the performance of linear and non-linear multivariate models for prediction of sand and clay content. A total of 1,534 legacy soil samples, stored […]

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Applicability of a distributed watershed pollution model in a data-poor environment in Santa Catarina State, Brazil

Ivan Luiz Zilli Bacic, David G. Rossiter, Christiaan Mathias Mannaerts


Intensification of agricultural production without a sound management and regulations can lead to severe environmental problems, as in Western Santa Catarina State, Brazil, where intensive swine production has caused large accumulations of manure and consequently water pollution. Natural resource scientists are asked by decision-makers for advice on management and regulatory decisions. Distributed environmental models are useful tools, since they can be used to explore consequences of various management practices. However, in many areas of the world, quantitative data for model […]