Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1136056
Research center of Embrapa/Collection: Embrapa Solos - Artigo em periódico indexado (ALICE)
Date Issued: 2020
Type of Material: Artigo em periódico indexado (ALICE)
Authors: SOUZA, S. F. F. de
ARAÚJO, M. do S. B. de
DEMATTÊ, J. A. M.
ARAUJO FILHO, J. C. de
Additional Information: SARA FERNANDES FLOR DE SOUZA, UFRN; MARIA DO SOCORRO BEZERRA DE ARAÚJO, UFPE; JOSÉ A. M. DEMATTÊ, ESALQ; JOSE COELHO DE ARAUJO FILHO, CNPS.
Title: Spectral patterns in the mid-ir of soils in the northeast of Brazil and their relation to the taxonomic classification.
Publisher: Revista Brasileira de Geografia Física, v. 13, n. 7, p. 3698-3711, 2020.
Language: Ingles
Keywords: Spectral patterns
Soil absorption features
Padrões espectrais
Reflectância
Feições de absorção do solo
Description: Knowing particularities of soils allows the adoption of sustainable management practices. The most efficient method to obtain data on the soil is through its characterization, essential for planning land use and soil conservation. However, soil surveys conducted in the conventional methods are costly and time-consuming. This study aimed to identify spectral patterns in the mid-IR wavelengths for a quick and low cost characterization of soil classes. Soils from the Natuba river basin, Pernambuco State, Brazil, were used. These soils were mapped on a scale of 1:25,000, where the presence of Latossolos, Argissolos, Gleissolos and Neossolos were identified. The data of reflectance for profiles of each soil class were collected using the spectral range between 2,500 and 25,000 nm. In the mid-IR region, Latossolos and Argissolos presented spectral characteristics peculiar to classification criteria. The increased contents of organic matter and iron oxides reduced soil reflectance. The horizons with sand content above 80% showed strong absorption spectra and significant reflectance peaks of quartz in the mid-IR. The wavelengths 2,681, 2,600 and 2,495 cm-1 occurred only in these horizons. The spectral analysis presented as a high-potential method for the characterization and classification of soils.
Thesagro: Matéria Orgânica
Oxido de Ferro
NAL Thesaurus: Reflectance
Organic matter
Iron oxides
Data Created: 2021-11-11
Appears in Collections:Artigo em periódico indexado (CNPS)

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