Building a geographic soil VisNIR and XRF spectral library: methods and data overview.
2023
LUZ, L. B. | VASQUES, G. M. | ARAÚJO, T. M. | BENTO, G. C. | MELO, J. R. C. | BHERING, S. B. | LEVI B. LUZ, UNIVERSIDADE FEDERAL FLUMINENSE; GUSTAVO DE MATTOS VASQUES, CNPS; TATIANE M. ARAÚJO, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; GRAZIELLY C. BENTO, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; JULIA R. C. MELO, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; SILVIO BARGE BHERING, CNPS.
Laboratory methods for soil analysis need to cope with the increasing demand for expedited and widespread georeferenced soil data to support decisions in digital agriculture, digital soil mapping and natural resources monitoring and conservation. A soil visible-near-infrared (VisNIR) and X-ray fluorescence (XRF) spectral library containing data from different Brazilian states is under construction that will (1) support the development of green soil analysis methods, (2) produce data to populate soil geodatabases, and (3) allow fast and accurate soil monitoring. The methods used to build the spectral library and an overview of the current data are presented.
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