Characterization of potential CO2 emissions in agricultural areas using magnetic susceptibility

Leal, Fábio Tiraboschi; França, Ana Beatriz Coelho; Siqueira, Diego Silva; Teixeira, Daniel De Bortoli; Júnior, José Marques; Júnior, Newton La Scala

doi:10.1590/0103-9016-2014-0420

Cited by 10 publications

(5 citation statements)

References 34 publications

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“…Thus, our findings may complement those of Barbieri et al (2013), indicating thus magnetic signature potential to identify areas with distinct selective dissolution and phosphorus availability. Moreover, the results here shown add on the results of Panosso et al (2011), concluding that magnetic signature, expressed by MS, can assist in conversions of BC to UC, since areas of greater potential for greenhouse gas emissions can be highlighted, as demonstrated by Leal et al (2015).…”

Section: Resultssupporting

confidence: 68%

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Magnetic Susceptibility as Indicator of Soil Quality in Sugarcane Fields

et al. 2017

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-Sugarcane management practices (unburned cane -UC and burned cane -BC) interfere with dynamics of soil magnetic properties. This study focused on determining the potential of magnetic susceptibility as soil quality indicator in areas under sugarcane cultivation. The experiment area is on the limit between basalt from São Bento Group, Serra Geral Formation, and sandstone from Bauru Group -Adamantina Formation. Twenty soil samples were collected from two management areas (burned and unburned sugarcane prior to harvest) at a depth range of 0.0-0.2 m. Local soil was classified as eutroferric Red Latosol (Oxisol), with highly clayey texture. Chemical and physical properties, CO 2 emissions and magnetic susceptibility (MS) in air-dried fine earth (MS ADFE ), total sand fraction (MS TS ) and clay fraction (MS CF ). The magnetic signature from MS was effective in identifying changes of physical, chemical and mineralogical traits in Latosols under burned and unburned sugarcane crop. The information provided here can guide further studies on the genesis of minerals with magnetic expression in environments and exposed to fire burning.Keywords: Magnetic signature. Applied Geophysics. Neo-formation. Multivariate Statistics. SUSCETIBILIDADE MAGNÉTICA COMO INDICADOR DE QUALIDADE DO SOLO EM ÁREAS SOB CULTIVO DE CANA-DE-AÇÚCARRESUMO -As práticas de manejo utilizadas na cultura da cana-de-açúcar (cana crua -CC e cana queimada -CQ) interferem na dinâmica dos atributos e expressão magnética do solo. Foi estudado o potencial da suscetibilidade magnética como indicador de qualidade do solo em áreas sob cultivo de cana-de-açúcar. O experimento localiza-se em uma área limítrofe de material de origem, entre o Basalto do Grupo São Bento, Formação Serra Geral, e o Arenito do Grupo Bauru, Formação Adamantina. Foram coletadas 20 amostras de solo em dois sistemas de manejo (com e sem queima da cana-de-açúcar para colheita) na profundidade de 0,0-0,2 m. O solo foi classificado como Latossolo Vermelho Eutroférrico, textura muito argilosa. Foram avaliados os atributos químicos, físicos, emissão de CO 2 e a suscetibilidade magnética (SM) do solo na terra fina seca ao ar (SM TFSA ), fração total sand (SM AT ) e fração argila (SM ARG ). A assinatura magnética expressa pela suscetibilidade magnética foi eficaz na identificação de mudanças nas características físicas, químicas e mineralógicas de Latossolos sob sistemas de colheita da cana-de-açúcar com e sem queima. As informações geradas neste trabalho podem balizar futuros estudos sobre a gênese de minerais com expressão magnética em ambientes e expostos a presença de fogo.Palavras -chave: Assinatura magnética. Geofísica aplicada. Neoformação. Estatística Multivariada.

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Section: Resultssupporting

confidence: 68%

“…Magnetic signature has been used for mineral quali-quantitative analysis in tropical soils (BAHIA et al, 2015), as indicator of environmental quality for CO 2 emissions (BARRIOS et al, 2012;LEAL et al, 2015), identifying distinct landscapes or land boundaries (MATIAS et al, 2014) and areas of potential erosion (SANTOS et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Magnetic Susceptibility as Indicator of Soil Quality in Sugarcane Fields

et al. 2017

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“…Studies have been applied using χρ, aiming, in addition to studies of the genesis of tropical soils, the proposal of χρ as: indicator of land use and occupation, assisting strategic planning of agricultural areas; (Leal et al 2015), rational use of phosphorus (Marques Júnior et al 2014), soil conservation (Santos et al 2013, application of residual water (Peluco et al 2013a, Camargo et al 2016) and characterization and spatial variability, comparing agricultural area with IBE in the Amazon (Oliveira et al 2015). In summary, this research indicates that obtaining χρ has the potential to become a promising alternative technique in the future of soil science, whatever the field, simply with the results of magnetic expressions.…”

Section: An Acad Brasmentioning

confidence: 99%

Pedotransfer functions to estimate some soil properties in Indian Black Earth, south of Amazonas State

Brito

Campos

Oliveira

et al. 2021

An. Acad. Bras. Ciênc.

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Agriculture needs methodologies that assist in the determination of soil attributes and variability mapping attributes with greater levels of detail. Therefore, the objective of this research was to evaluate magnetic susceptibility as auxiliary variable for estimating soil attributes in areas of Indian Black Earths in the south of Amazonas State.Three Indian Black Earth areas are located in the municipalities of Apuí and Manicoré -Amazonas, under uses with coffee, cocoa and pasture. The soils were collected at the crossing points in the depth of 0.00 -0.20 m, making a total of 88 sampling points/area, and totaling 264 samples. The points were georeferenced for geostatistical modeling.After that, physical and chemical analyzes were performed to obtain the values of soil and magnetic susceptibility attributes. Descriptive statistics, Pearson correlation, linear regression and geostatistical analyzes were applied for Pedotransfer Function modeling and the spatial variability of the analyzed attributes. Magnetic susceptibility showed a high degree of spatial dependence in the study areas, high range values, correlating with most of the assessed attributes, mainly physical, indicating potential in the prediction of the attributes in these environments. Pedotransfer functions vary among IBE's sites in attribute prediction, ensuring moderate estimates for predicting soil attributes in IBE's areas.

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“…Correlações entre a SM e emissão de CO2 foram encontras em Latossolos tropicais brasileiros com diferentes teores de matéria orgânica por Leal et al (2015).…”

Section: Introductionunclassified

Suscetibilidade magnética na caracterização da variabilidade espacial de atributos do solo em solos subtropicais

Ramos

Dalmolin

Moura-Bueno

et al. 2021

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Magnetic susceptibility (MS) has been used to estimate soil attributes. With the proposal to increase the information of soils in southern Brazil the objectives of this work were: (i) evaluate the correlation of SM with soil attributes in a slope of subtropical basaltic soils; (ii) to characterize the spatial variation structure of MS and the content of sand, clay and COS; and (iii) identify the sample density that captures the spatial variability to assist future work under similar conditions. In a 22 ha area located in Santo Augusto - RS, Brazil, an 87 points sample grid was collected to determine soil attributes. Samples were also collected in five profiles along the slope. The profile data were analyzed by correlation to verify the degree of Pearson correlation of the SM with the attributes of the soil. In the sample grid spatial dependence analyzes were performed to assess the degree of spatial dependence on soil attributes. The MS presented a high correlation with the attributes of clay soil, Fes, Fed and COS. The evaluation of the spatial variation structure showed that the attributes presented a degree of spatial dependence ranging from weak for COS to strong for MS. The spatial variability pattern suggests a sample density of one point every 4 to 12 ha.

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Characterization of potential CO2 emissions in agricultural areas using magnetic susceptibility

Cited by 10 publications

References 34 publications

Magnetic Susceptibility as Indicator of Soil Quality in Sugarcane Fields

Magnetic Susceptibility as Indicator of Soil Quality in Sugarcane Fields

Pedotransfer functions to estimate some soil properties in Indian Black Earth, south of Amazonas State

Suscetibilidade magnética na caracterização da variabilidade espacial de atributos do solo em solos subtropicais

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