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 8 publications

(4 citation statements)

References 34 publications

(30 reference statements)

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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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“…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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“…Recently, Siqueira et al (2010a) used it for the quantification of physical, chemical, and mineralogical attributes of soils with low iron content, i.e., less than 4% as Fe 2 O 3 . Magnetic susceptibility has also been used in sugarcane plantations in Brazil to identify areas with different potentials for soil CO 2 emission (Barrios et al, 2012;Leal et al, 2015) and with different capacity to endure vinasse application (Peluco et al, 2013), as well as to quantify adsorbed phosphorus (Peluco et al, 2015) and to map management units (Matias et al, 2015;Siqueira et al, 2015). However, few works focus on identifying the relationship between magnetic susceptibility and plant characteristics .…”

Section: Introductionmentioning

confidence: 99%

Magnetic susceptibility for characterizing areas with different potentials for sugarcane production

Siqueira

Júnior

Teixeira

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to evaluate the use of magnetic susceptibility for characterizing the spatial variability of soil attributes and identifying areas with different potentials for sugarcane (Saccharum spp.) production. Samples were collected at 110 points (1 per 7 ha) in the layers of 0.00-0.20 and 0.20-0.40 m, to determine the magnetic susceptibility and physical and chemical attributes of the soil. Fiber content, sucrose polarization (POL), and sugarcane yield were determined in 33 points. The spatial variability model for magnetic susceptibility was 63 and 22% more accurate in delimiting soil potential for sugarcane production than soil physical and chemical attributes at the 0.0-0.2 and 0.2-0.4-m layers, respectively. The spatial variability map for magnetic susceptibility was strongly correlated with clay (0.83 and 0.89, respectively, for the layers) and sand contents (-0.84 and -0.88); moderately correlated with organic matter (-0.25 and -0.35), sum of bases (-0.46 and 0.37), cation exchange capacity (0.22 and 0.47), pH (-0.52 and 0.13), and POL (0.43 and 0.53); and weakly correlated with sugarcane yield (0.26 and 0.23). Magnetic susceptibility can be used to characterize the spatial variability of soil attributes and to identify areas with different potentials for sugarcane production.Index terms: detailed mapping, geostatistics, indirect quantification, pedometrics, scaled semivariogram, spatial correlation. Susceptibilidade magnética para a caracterização de áreas com diferentes potenciais de produção de cana-de-açúcarResumo -O objetivo deste trabalho foi avaliar o uso da susceptibilidade magnética para caracterizar a variabilidade espacial dos atributos do solo e identificar áreas com diferentes potenciais de produção de cana-de-açúcar (Saccharum spp.). Foram coletadas amostras em 110 pontos (1 por cada 7 ha), nas camadas de 0,00-0,20 e 0,20-0,40 m, para determinação da suscetibilidade magnética e de atributos físicos e químicos do solo. O teor de fibra, a polarização da sacarose (POL) e a produtividade da cana-de-açúcar foram determinados em 33 pontos. O modelo de variabilidade espacial da susceptibilidade magnética foi 63 e 22% mais acurado em delimitar o potencial do solo para produção da cana-de-açúcar que os atributos físicos e químicos do solo, nas camadas de 0,00-0,20 e de 0,20-0,40 m de profundidade, respectivamente. O mapa da variabilidade espacial da susceptibilidade magnética apresentou forte correlação com o conteúdo de argila (0,83 e 0,89, respectivamente, para as camadas) e de areia (-0,84 e -0,88); moderada correlação com a matéria orgânica (-0,25 e -0,35), a soma de bases (-046 e 0,37), a capacidade de troca catiônica (0,22 e 0,47), o pH (-0,52 e 0,13) e a POL (0,43 e 0,53); e fraca correlação com a produtividade da cana-de-açúcar (0,26 e 0,23). A susceptibilidade magnética pode ser utilizada para caracterizar a variabilidade espacial dos atributos do solo e para identificar áreas com diferentes potenciais para produção de cana-de-açúcar.Termos para indexação: mape...

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Characterization of potential CO2 emissions in agricultural areas using magnetic susceptibility

Cited by 8 publications

References 34 publications

Magnetic Susceptibility as Indicator of Soil Quality in Sugarcane Fields

Magnetic Susceptibility as Indicator of Soil Quality in Sugarcane Fields

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

Magnetic susceptibility for characterizing areas with different potentials for sugarcane production

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