Search Results - "Camargo, Livia Arantes"
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Improving soil organic carbon mapping with a field‐specific calibration approach through diffuse reflectance spectroscopy and machine learning algorithms
Published in Soil use and management (01-01-2022)“…Detailed mapping of soil attributes is often not viable due to the high cost of wet‐chemical laboratory analysis, which requires a large number of samples…”
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Prediction and mapping of erodibility factors (USLE and WEPP) by magnetic susceptibility in basalt-derived soils in northeastern São Paulo state, Brazil
Published in Environmental earth sciences (2019)“…Spatial assessment of soil erosion is essential for the adaptation of agricultural practices and monitoring of soil losses. In this sense, this study aims to…”
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3
Subsoiling of an oxisol at fixed and varying depth in areas under sugarcane
Published in Precision agriculture (01-12-2020)“…Knowledge of the spatial variability of compaction would minimize the movement of soil and optimize the operation and economic viability of sugarcane…”
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4
Clay mineralogy and magnetic susceptibility of Oxisols in geomorphic surfaces
Published in Scientia agricola (01-06-2014)“…Studies analyzing the variability of clay minerals and magnetic susceptibility provide data for the delineation of site-specific management areas since many of…”
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Spatial correlation between the composition of the clay fraction and contents of available phosphorus of an Oxisol at hillslope scale
Published in Catena (Giessen) (01-01-2013)“…Relief is regarded as the abiotic factor most strongly influencing pedogenic processes at a local scale. The spatial correlations between the composition of…”
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Magnetic susceptibility for characterizing areas with different potentials for sugarcane production
Published in Pesquisa agropecuaria brasileira (01-09-2016)“…Abstract The objective of this work was to evaluate the use of magnetic susceptibility for characterizing the spatial variability of soil attributes and…”
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7
Mineralogy of the clay fraction of Alfisols in two slope curvatures: III - spatial variability
Published in Revista Brasileira de Ciência do Solo (01-04-2013)“…A good knowledge of the spatial distribution of clay minerals in the landscape facilitates the understanding of the influence of relief on the content and…”
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Mineralogy of the clay fraction of alfisols in two slope curvatures: IV - spatial correlation with physical properties
Published in Revista Brasileira de Ciência do Solo (01-04-2013)“…Although the influence of clay mineralogy on soil physical properties has been widely studied, spatial relationships between these features in Alfisols have…”
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Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane
Published in Scientia agricola (01-02-2015)“…Soil CO2 emission (FCO2) is one of the main sources of carbon release into the atmosphere. Moreover, FCO2 is related to soil attributes governing the transfer…”
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10
Gênese de solos coesos do leste maranhense: relação solo-paisagem
Published in Revista Brasileira de Ciência do Solo (01-08-2014)“…A ocorrência dos solos coesos no Brasil está relacionada dominantemente com os sedimentos argiloarenosos da Formação Barreiras, os quais estão geologicamente…”
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Hillslope curvature, clay mineralogy, and phosphorus adsorption in an Alfisol cultivated with sugarcane
Published in Scientia agricola (01-12-2009)“…Hillslope curvatures are associated with specific environments that correlate to chemical and mineralogical attributes of soil, so determining specific…”
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Modelagem geoestatística das incertezas da distribuição espacial do fósforo disponível no solo, em área de cana-de-açúcar
Published in Revista Brasileira de Ciência do Solo (01-12-2013)“…O fósforo destaca-se como um dos nutrientes limitantes ao desenvolvimento da cultura da cana-de-açúcar em solos brasileiros. Esse elemento apresenta grande…”
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Relações solo-paisagem em uma litosseqüência arenito-basalto na região de Pereira Barreto, SP
Published in Revista brasileira de ciência do solo (2007)“…Os objetivos deste trabalho foram estudar as relações solo-paisagem em uma litosseqüência de transição arenito-basalto e verificar a similaridade dos limites…”
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14
Mapping of clay, iron oxide and adsorbed phosphate in Oxisols using diffuse reflectance spectroscopy
Published in Geoderma (01-08-2015)“…Diffuse reflectance spectroscopy (DRS) provides a rapid, non-destructive, less expensive and sustainable complement to conventional methods of soil analysis…”
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Predicting potentially toxic elements in tropical soils from iron oxides, magnetic susceptibility and diffuse reflectance spectra
Published in Catena (Giessen) (01-06-2018)“…Environmental impacts can be more accurately assessed with the aid of spatial characterization of potentially toxic elements (PTEs). In fact, developing…”
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Simulação geoestatística na caracterização espacial de óxidos de ferro em diferentes pedoformas
Published in Revista Brasileira de Ciência do Solo (01-12-2012)“…Os minerais da fração argila, goethita e hematita, são óxidos de ferro (Fe) indicadores pedoambientais com grande influência nos atributos físicos e químicos…”
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Prediction and Mapping of Soil Attributes using Diffuse Reflectance Spectroscopy and Magnetic Susceptibility
Published in Soil Science Society of America journal (01-11-2017)“…Core Ideas We used VIS‐NIR spectroscopy and magnetic susceptibility to predict soil attributes. This paper shows the importance these tools for mapping large…”
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18
Iron oxides as proxies for characterizing anisotropy in soil CO2 emission in sugarcane areas under green harvest
Published in Agriculture, ecosystems & environment (01-07-2014)“…•Hematite, goethite and dithionite iron exhibited well-defined anisotropy.•Preparation and management practices soil affected soil CO2 emission.•The minerals…”
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Mineralogy of the clay fraction of Alfisols in two slope curvatures: III - spatial variability Mineralogia da fração argila de um Argissolo em curvaturas do relevo: III - variabilidade espacial
Published in Revista brasileira de ciência do solo (01-04-2013)“…A good knowledge of the spatial distribution of clay minerals in the landscape facilitates the understanding of the influence of relief on the content and…”
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20
Mineralogy of the clay fraction of alfisols in two slope curvatures: IV - spatial correlation with physical properties Mineralogia da fração argila de um argissolo em curvaturas do relevo: II - correlação especial com atributos físicos
Published in Revista brasileira de ciência do solo (01-04-2013)“…Although the influence of clay mineralogy on soil physical properties has been widely studied, spatial relationships between these features in Alfisols have…”
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