Pedometric tools for classification of southwestern Amazonian soils: A quali-quantitative interpretation incorporating visible-near infrared spectroscopy

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2022-01-12 DOI:10.1177/09670335211061854

O. C. Tavares, T. Tavares, C. R. Pinheiro Junior, L. M. da Silva, Paulo GS Wadt, M. G. Pereira

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Abstract

The 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.

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亚马逊西南部土壤分类的测量工具:结合可见-近红外光谱的定性定量解释

亚马逊西南地区环境变异性大，地质地貌环境变异性丰富，是巴西其他两个生物群系的过渡区，土壤环境非常复杂。在这项研究中，利用土壤测量工具(AQP R包和漫反射光谱)对亚马逊西南部15个土壤剖面的特征进行了评估。AQP统计包-基于切片函数评估土壤深度-表明土壤属性的变化范围很大，特别是在浅层。相似度分析的结果与土壤理化成分和氧化物含量的描述有较深入的印证，有助于土壤剖面的分类。通过对可见-近红外光谱的深入表征，可以对部分剖面的成土过程进行推断，为今后建立基于光谱数据的亚马逊西南部土壤分类分析策略奠定了基础。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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