Preparo do solo e emissão de CO2, temperatura e umidade do solo em área canavieira

Iamaguti, Juliano Luciani; Moitinho, Mara Regina; Teixeira, Daniel De Bortoli; Bicalho, Elton da Silva; Panosso, Alan Rodrigo; Scala, Newton La

doi:10.1590/1807-1929/agriambi.v19n5p497-504

Cited by 18 publications

(20 citation statements)

References 23 publications

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“…La Scala et al (2006) observed that the conventional (plowing + harrowing) and reduced (chiseling) tillage systems favored an increase in soil CO 2 emission when compared to the soil without tillage. Iamaguti et al (2015) also observed in an Oxisol that the conventional tillage presented a higher average value of soil CO 2 emission when compared to the conventional subsoiling and localized subsoiling. According to the authors, this fact shows that soil CO 2 emission is a complex phenomenon and its understanding is challenging due to the great variability of this variable.…”

Section: Soil Co 2 Emission and Soil Attributes In The Oxisolmentioning

confidence: 62%

“…Assessments were carried out in the morning from 7:00 to 9:00 h. Soil CO 2 emission varies within the same day according to temperature variations mainly due to air temperature that influences soil temperature. Other studies designed to assess soil CO 2 emission over the days were also conducted in the same period so that the assessments could start and finish with small soil temperature fluctuations (Panosso et al 2011;Iamaguti et al 2015). No measurements were conducted on the days that precipitations coincided with the assessment time.…”

Section: Determination Of Soil Attributes To Characterize the Study Areamentioning

confidence: 99%

“…Agriculture is an important source of CO 2 emission to the atmosphere (IPCC 2014), standing out agricultural practices related to changes in land use and soil management that contribute to increasing its concentrations (Cerri et al 2007;Iamaguti et al 2015). Carbon dioxide is one of the greenhouse gases that have contributed the most to the additional greenhouse effect over the last 200 years (IPCC 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Soil tillage systems, such as the conventional tillage, contribute to the increased CO 2 emission to the atmosphere (La Scala et al 2006;Iamaguti et al 2015). In this sense, soil disaggregation due to the disturbance caused by tillage interferes with soil CO 2 emission.…”

Section: Introductionmentioning

confidence: 99%

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Soil carbon dioxide emission associated with soil porosity after sugarcane field reform

Souza

Fernandes

Moitinho

et al. 2018

Mitig Adapt Strateg Glob Change

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This study aimed to characterize soil carbon dioxide (CO 2) emission associated with soil pore distribution in an Oxisol and Ultisol under chiseling in the planting row and in total area for sugarcane (Saccharum officinarum) cultivation. The experimental design was a large paired-plot design. Treatments consisted of chiseling in the planting row (CPR) and chiseling in total area (CTA) in an Oxisol and Ultisol. Soil CO 2 emission, soil temperature, and soil moisture were assessed over 12 days in the Oxisol and 11 days in the Ultisol at a depth of 0-0.10 m. Organic carbon associated with minerals (OCAM) and particulate organic carbon (POC) were also assessed. OCAM, pore class C2 (0.05 ≤ ɸ < 0.1 mm), soil moisture, and soil temperature explained 72 and 53% of the variability of soil CO 2 emission in CPR and CTA, respectively. In the Ultisol, pore class C1 (ɸ ≥ 0.1 mm) and OCAM explained 82% of the variability of soil CO 2 emission in CPR. In CTA, soil moisture, OCAM, and POC explained 67% of the variability of soil CO 2 emission. In the Oxisol, CPR and CTA affected soil structure, causing changes in both soil porosity and soil CO 2 emission. In the Oxisol, the lowest average value of soil CO 2 emission (2.8 μmol m −2 s −1) was observed in CPR whereas its highest value (3.4 μmol m −2 s −1) was observed in CTA. In the Ultisol, soil tillage (CPR and CTA) did not affect soil CO 2 emission. These results indicate that the intensity of soil tillage in more clayey textured soils favors soil CO 2 emission possibly due to a higher carbon availability for microbial activity when compared to more sandy textured soils. A less intensive soil tillage can be considered as an efficient strategy to reduce soil CO 2 emission and hence soil organic carbon losses. Thus, this management strategy proved to be efficient in terms of mitigating greenhouse gas emissions, reducing the contribution of agriculture to global climate change.

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Section: Soil Co 2 Emission and Soil Attributes In The Oxisolmentioning

confidence: 62%

Section: Determination Of Soil Attributes To Characterize the Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Soil carbon dioxide emission associated with soil porosity after sugarcane field reform

Souza

Fernandes

Moitinho

et al. 2018

Mitig Adapt Strateg Glob Change

View full text Add to dashboard Cite

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“…Small increments in respiration rates may be enough to change an ecosystem of carbon sink source to the atmosphere (Buczko et al, 2015). However, emissions from the soil, often are not considered in the calculation, due to its great spatial-temporal variation and by being a resulting phenomenon from a complex interaction of physical, chemical and biological soil attributes and climatic factors (Schwendenmann et al, 2003;Epron et al, 2006;Lal, 2009;Teixeira et al, 2012;Silva-Olaya et al, 2013;Buczo et al, 2015;Iamaguti et al, 2015;Moitinho et al, 2015). Therefore, studies that seek to characterise the spatialtemporal variability patterns of CO2 emission and its relation with soil attributes are important in determining the carbon balance, especially, in agricultural ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Spatial Variability of Soil Co2 Emission in Soybean and Sugarcane Areas in Mato Grosso Do Sul Cerrado, Brazil

Terçariol¹,

Brancaglioni²,

Júnior³

et al. 2016

J. Geo. Mod.

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In last years, the damage caused to the environment due to anthropic activities have become a worldwide concern. The carbon dioxide (CO2) is one of the main greenhouse gases because the increase of its concentration in the atmosphere has intensified to global warming. Therefore, to study the CO2 amounts emitted to the atmosphere has been even more important, especially in agricultural areas in Brazil. This study aimed to determine the spatial variability of soil CO2 emissions (FCO2), soil temperature (Ts) and soil moisture (Ms) in soybean and sugarcane cultivation areas in the Cerrado region in Mato Grosso do Sul. The FCO2 and Ts registration were done using a portable flow chamber and temperature sensor of the LI-8100 system. The Ms was evaluated using TDR portable system. The studies were conducted in the years of 2013, in soybean cultivation, and in 2014, in the sugarcane cultivation, during the crop growth early stages, using grids which contain 89 and 102 sampling points, respectively, spanning 1 ha area in both experiments. The spatial variability variables were characterised by geostatistics: mathematical models adjustments to the experimental variograms and spatial pattern maps construction through ordinary kriging technique. The sTe sH variables did not show significant correlations with FCO2. Despite the years of conducting the experiments, the soybean cultivation presented the higher average values of soil CO2 emission equal 2.11 µmol m-2 s-1 and higher variation in range of the spatial dependency between 8.41 and 27 m when compared to sugarcane culture, with a FCO2 average of 1.71 µmol m-2 s-1 and variation in the ranges of spatial dependency between 15.3 and 27.3 m.

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Global Warming and the Effects of Climate Change on Coffee Production

Moreira

Silva

et al. 2020

Food Engineering Series

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Preparo do solo e emissão de CO2, temperatura e umidade do solo em área canavieira

Cited by 18 publications

References 23 publications

Soil carbon dioxide emission associated with soil porosity after sugarcane field reform

Soil carbon dioxide emission associated with soil porosity after sugarcane field reform

Spatial Variability of Soil Co2 Emission in Soybean and Sugarcane Areas in Mato Grosso Do Sul Cerrado, Brazil

Global Warming and the Effects of Climate Change on Coffee Production

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