Fluxes of Carbon Dioxide, Nitrous Oxide, and Methane in Grass Sod and Winter Wheat‐Fallow Tillage Management

Kessavalou, Anabayan; Mosier, A. R.; Doran, John W.; Drijber, Rhae A.; Lyon, Drew J.; Heinemeyer, Otto

doi:10.2134/jeq1998.00472425002700050015x

Cited by 202 publications

(165 citation statements)

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“…Our study showed that tillage treatments affect soil CO2 emissions, which agrees with several other studies [15,39], where CO2 release varied with agricultural practices. Figure 3 presents two-year average soil C-CO2 emissions (n = 48) considering tillage treatments.…”

Section: Influence Of Tillage Treatment On Soil C-co2 Emissionssupporting

confidence: 93%

“…Emissions amounted to 17.1 kg ha´1 day´1 during corn cultivation, which is in accordance with the value (19.4 kg ha´1 day´1) obtained by Ussiri and Lal [22] during corn cultivation in Ohio. During winter wheat growing season, soil C-CO 2 emissions amounted to 28.7 kg ha´1 day´1 which is higher than results obtained by Kessavalou et al [15], who determined that mean annual CO 2 emissions from wheat-fallow at Sidney, NE, ranged from 6.9 to 20.1 kg C ha´1 day´1.…”

Section: Influence Of Vegetation On Soil C-co 2 Emissionscontrasting

confidence: 57%

“…According to literature data, soil CO 2 emissions are changing with the exchange of seasons and are dependent on climatological conditions, crop type, soil type and many other factors and they have no clear pattern. Kessavalou et al [15] measured the highest soil CO 2 emissions in spring and the lowest in winter during wheat cultivation in Nebraska; Jacinthe et al [33] determined with black fallow that soil CO 2 emissions decreased winter > summer > autumn in Ohio; Lou et al [38] recorded, in China, a gradual decrease of soil CO 2 emissions from August to January and an increase from January to July, and Ussiri and Lal [22] determined that daily CO 2 fluxes were the highest in summer and the lowest in winter, while Bauer et al [21] determined that CO 2 flux rates decreased, respectively, summer > spring > fall.…”

Section: Seasonal Pattern Of Soil C-co2 Emissionsmentioning

confidence: 99%

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Influence of Tillage Practices and Crop Type on Soil CO2 Emissions

2016

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Nonsustainable agricultural practices often lead to soil carbon loss and increased soil carbon dioxide (CO 2 ) emissions into the atmosphere. A research study was conducted on arable fields in central lowland Croatia to measure soil respiration, its seasonal variability, and its response to agricultural practices. Soil C-CO 2 emissions were measured with the in situ static chamber method during corn (Zea mays L.) and winter wheat (Triticum aestivum L.) growing seasons (2012 and 2013, n = 288) in a field experiment with six different tillage treatments. During corn and winter wheat growing season, average monthly soil C-CO 2 emissions ranged, respectively, from 6.2-33.6 and 22.1-36.2 kg ha´1 day´1, and were decreasing, respectively, from summer > spring > autumn and summer > autumn > spring. The same tillage treatments except for black fallow differed significantly between studied years (crops) regarding soil CO 2 emissions. Significant differences in soil C-CO 2 emissions between different tillage treatments with crop presence were recorded during corn but not during winter wheat growing season. In these studied agroecological conditions, optimal tillage treatment regarding emitted C-CO 2 is plowing to 25 cm along the slope, but it should be noted that CO 2 emissions involve a complex interaction of several factors; thus, focusing on one factor, i.e., tillage, may result in a lack of consistency across studies.

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Section: Influence Of Tillage Treatment On Soil C-co2 Emissionssupporting

confidence: 93%

Section: Influence Of Vegetation On Soil C-co 2 Emissionscontrasting

confidence: 57%

Section: Seasonal Pattern Of Soil C-co2 Emissionsmentioning

confidence: 99%

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Influence of Tillage Practices and Crop Type on Soil CO2 Emissions

2016

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“…Microclimatic conditions had mostly weak or modest impact on soil CO 2 emission. Similar results were reported by Kessavalou, A. et al (1998) Bilandžija, D. et al (2014) and Bilandžija, D. (2015). Of all tested functions, best type of correlation between soil CO 2 emissions and microclimatic factors, showed to be the second order polynomial correlation, except for soil water content.…”

Section: Discussionsupporting

confidence: 89%

Influence of tillage systems on short-term soil CO2 emissions

Bilandžija¹,

Zgorelec²,

Kisić³

2017

HunGeoBull

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Agricultural ecosystems can play a significant role in greenhouse gas emissions, specifically, carbon dioxide. Tillage management can increase atmospheric CO 2 concentrations and contribute to global warming but it is uncertain to which extent tillage enhances the transfer of soil CO 2 to the atmosphere. Our objectives were (1) to determine short-term, tillage-induced soil CO 2 emissions; (2) to determine the effect of different tillage systems and time after tillage operation on soil CO 2 emissions and soil microclimate and (3) to examine the relations between short-term soil CO 2 emissions and microclimate (soil temperature, soil water content; air temperature and relative air humidity). Soil CO 2 concentrations were measured on Stagnic Luvisols, in a temperate continental climate of the central lowland Croatia in October 2013 before, zero and three hours after tillage operations with in situ closed static chamber method. The four tillage systems were no-tillage (NT), ploughing to 25 cm (P 25 ), very deep ploughing to 50 cm (P 50 ) and subsoiling to 50 cm (PS 50 ). The study showed that tillage has impact on soil CO 2 emissions and soil microclimate. Tillage has accelerated the transfer of soil CO 2 to the atmosphere but soil CO 2 emissions declined sharply within three hours after tillage operations. Soil temperature has decreased after tillage operation and afterwards continued to rise while soil water content has been decreasing during whole study period. Correlations between soil CO 2 emissions and microclimatic factors were mostly weak or modest while best type of studied correlations between soil CO 2 emissions and microclimate showed to be the second order polynomial correlation.

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“…CH 4 flux measured between 9:00 AM and 13:00 PM can approximately represent the average flux of the day [13,37,38]. Based on the observation data and the integral quadrature between dynamic curves of the CH 4 uptake flux and the time axis [39], we can get average daily uptake flux.…”

Section: Ch 4 Fluxes Of Different Treatments and The Influence Of Prementioning

confidence: 99%

CH4 uptake flux of Leymus chinensis steppe during rapid growth season in Inner Mongolia, China

Geng

Luo

Yuan

2010

Sci. China Earth Sci.

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The influence of near ground atmosphere CH 4 concentration, soil water content, soil Eh, plants, soil temperature, and pH on CH 4 uptake flux of Leymus chinensis steppe during rapid growth season was studied using field in-situ measurement in Xilin River basin of Inner Mongolia, China. The results showed that CH 4 uptake flux was positively correlated with near ground atmosphere CH 4 concentration and soil Eh but negatively correlated with soil water content. Precipitation may decrease the CH 4 flux by increasing the soil water content. The average fluxes of three treatments during the observation period were 1.52 (natural conditions, 1.51 (aboveground plants were excluded), and 2.00 mg m −2 d −1 (all plants were removed), respectively. The difference between the CH 4 flux of natural condition treatment and that of removing aboveground plants treatment is small, whereas the flux of removing all plants treatment is larger than the other two treatments. This means that the contribution of aboveground plants to CH 4 uptake flux is smaller than that of roots or roots-removing process. CH 4 uptake flux is not sensitive to soil temperature and the narrow-ranged soil pH (6.36-7.86). The Leymus chinensis steppe acts as a sink for CH 4 , and thus more studies should be focused on its affecting factors and related mechanisms. The global atmospheric concentration of CH 4 has increased from a pre-industrial value of about 715 to 1732 ppb in the early 1990s, and was 1774 ppb in 2005 [1]. CH 4 is a long-lived greenhouse gas (it lasts about 8.4 years in the atmosphere) [2] and can absorb more infrared radiation than CO 2 . The warming potential of CH 4 is 26 times of that of CO 2 [3, 4] and the current direct radioactive forcing of CH 4 is 20% of the total from all of the long-lived and globally mixed greenhouse gases [5]. Emission of CH 4 has a long-term effect on climate change. CH 4 concentration in atmosphere lies mainly on the balance between natural and artificial emission and uptake of CH 4 . The persistently increased CH 4 concentration is caused not only by the increased sources but also by the decreased sink [6]. Aerobic soil environment can oxidize the CH 4 diffusing from atmosphere to soil, which is the biggest sink for CH 4 of terrestrial ecosystem except for atmospheric photochemical reactions [7]. This oxidation process is very important for regulating the quantity of CH 4 in atmosphere. The increase rate of CH 4 concentration in atmosphere would be 1.5 times of value right now if there were no soil sink for CH 4 [8]. Up to now, most of our studies about CH 4 uptake are focused on forest [9-11], grassland [12-14], and paddy field [15,16], and also concerned with the influence of land use change on CH 4 uptake [17,18]. Research on CH 4 uptake process in grassland ecosystem focused on the variation pattern of flux, but its affecting factors are not yet clear.

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Fluxes of Carbon Dioxide, Nitrous Oxide, and Methane in Grass Sod and Winter Wheat‐Fallow Tillage Management

Cited by 202 publications

References 0 publications

Influence of Tillage Practices and Crop Type on Soil CO2 Emissions

Influence of Tillage Practices and Crop Type on Soil CO2 Emissions

Influence of tillage systems on short-term soil CO2 emissions

CH4 uptake flux of Leymus chinensis steppe during rapid growth season in Inner Mongolia, China

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