02360naa a2200349 a 450000100080000000500110000800800410001902200140006002400510007410000220012524501820014726000090032952011620033865000130150065000310151365000240154465000280156865300180159665300290161465300370164365300430168065300450172365300160176865300200178465300250180470000190182970000270184870000200187570000190189570000190191477300770193321391492022-04-04       2022    bl uuuu     u00u1 u    #d  a0967-03357 ahttps://doi.org/10.1177/096703352110618542DOI1 aTAVARES, O. C. H.  aPedometric tools for classification of southwestern Amazonian soilsba quali-quantitative interpretation incorporating visible-near infrared spectroscopy.h[electronic resource]  c2022  aThe southwestern region of the Amazon has great environmental variability, presents a great complexity of pedoenvironments due to its rich variability of geological and geomorphological environments, as well as for being a transition region with other two Brazilian biomes. In this study, the use of pedometric tools (the Algorithms for Quantitative Pedology (AQP) R package and diffuse reflectance spectroscopy) was evaluated for the characterization of 15 soil profiles in southwestern Amazon. The AQP statistical package-which evaluates the soil in-depth based on slicing functions-indicated a wide range of variation in soil attributes, especially in the superficial horizons. In addition, the results obtained in the similarity analysis corroborated with the description of physical, chemical components and oxide contents in-depth, aiding the classification of soil profiles. The in-depth characterization of visible-near infrared spectra allowed inference of the pedogenetic processes of some profiles, setting precedents for future work aiming to establish analytical strategies for soil classification in southwestern Amazon based on spectral data.  aAmazonia  aNear-infrared spectroscopy  aSoil classification  aClassificação do Solo  aAQP R package  aClasificación de suelos  aDiffuse reflectance spectroscopy  aEspectroscopía del infrarrojo cercano  aEspectroscopia no infravermelho próximo  aPedometrics  aSoil attributes  aSoil-depth functions1 aTAVARES, T. R.1 aPINHEIRO JUNIOR, C. R.1 aSILVA, L. M. da1 aWADT, P. G. S.1 aPEREIRA, M. G.  tJournal of Near Infrared Spectroscopygv. 30, n. 1, p. 18-30, Feb. 2022.