Response of Carbon Dioxide Emissions to Warming under No-Till and Conventional Till Systems

doi:10.2136/SSSAJ2013.05.0184

Paper

Response of Carbon Dioxide Emissions to Warming under No-Till and Conventional Till Systems

Published 2014 · Ruixing Hou, Z. Ouyang, G. Wilson

Soil Science Society of America Journal

Q1 SJR score

21

Citations

1

Influential Citations

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Abstract

Differences in soil organic carbon (SOC) distribution, water holding capacity, and soil temperature between no-tillage (NT) and conventional tillage (CT) systems can result in different soil CO2 emissions which could affect global warming but few studies have addressed this concern. An open warming experiment was conducted in situ by infrared heating of long-term conservation tillage management plots in North China Plain (NCP) to determine the effects of warming on soil CO2 emissions and the correlation to changes in soil temperature and moisture. This experiment was conducted from February 2010 to June 2012 and included CT and NT plots with and without warming. Warming treatment increased soil temperature by 2.1 and 1.5 degrees C, and decreased volumetric soil-water content by 14 and 10% for CT and NT systems, respectively. Soil CO2 emissions tended to decrease with time in CT while it consistently increased in NT system over the three wheat seasons and two maize seasons under warming. Our results suggest that differences in soil temperature and soil moisture between the two tillage systems could be enlarged with time by warming, and the potential exist for warming to promote more soil CO2 emission under NT relative to CT. There is a need to consider the differences in response to global warming between these two tillage systems to properly assess the benefits of NT to C sequestration.

Study Snapshot

Warming can increase soil CO2 emissions under no-tillage systems, potentially affecting global warming.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Response of Carbon Dioxide Emissions to Warming under No-Till and Conventional Till Systems

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References

Carbon Depletion by Plowing and its Restoration by No‐Till Cropping Systems in Oxisols of Subtropical and Tropical Agro‐Ecoregions in Brazil

No-till cropping systems with high carbon input can potentially reverse soil degradation and soil organic carbon decline in subtropical and tropical regions of Brazil.

Contrasting responses of heterotrophic and autotrophic respiration to experimental warming in a winter annual‐dominated prairie

Climate warming stimulates heterotrophic respiration but decreases autotrophic respiration in a winter annual-dominated prairie, with no significant interaction between warming and clipping.

Field-scale manipulation of soil temperature and precipitation change soil CO2 flux in a temperate agricultural ecosystem

Elevated soil temperature and reduced precipitation significantly increase soil respiration, but soil moisture regime plays a crucial role in determining whether soils serve as carbon sources or sinks in agricultural ecosystems.

Is the change of winter wheat yield under warming caused by shortened reproductive period?

Winter wheat may adjust its growth (shortened vegetative period to maintain reproductive period) to partially compensate for negative effects from global warming in temperate irrigated cropland.

Long‐Term No‐Till Impacts on Organic Carbon and Properties of Two Contrasting Soils and Corn Yields in Ohio

Long-term no-till practices in Ohio have varying impacts on organic carbon and soil properties, with some soils showing higher organic carbon levels and corn yields.

Citations

Tillage effects on maize yield, N use efficiency and GHG emissions under parallel N application in Northwest China

Tillage management can improve maize yield, N use efficiency, and greenhouse gas emissions, with minimal tillage maintaining higher income and reducing environmental risks.

Soil respiration and net carbon flux response to long-term reduced/no-tillage with and without residues in a wheat-maize cropping system

Reduced/no-tillage with residues significantly decreases net carbon flux and increases sustainability and carbon productivity in wheat-maize cropping systems.

Straw and residual film management enhances crop yield and weakens CO2 emissions in wheat–maize intercropping system

No tillage with straw returning and residual film mulching in wheat-maize intercropping effectively reduces soil CO2 emissions and enhances soil CO2 emission efficiency in arid inland areas.

Effect of tillage system on soil CO2 flux, soil microbial community and maize (Zea mays L.) yield

No-tillage (NT) can improve maize yield and carbon emission efficiency in northeast China, potentially coping with drought through improved soil water content and microbial PLFA contents.

Variability and controls of soil CO2 fluxes under different tillage and crop residue managements in a wheat-maize double-cropping system

Tillage regimes and crop residue management practices significantly impact soil CO2 emissions, with no tillage potentially increasing emissions by over 30 cm depths.

Spatiotemporal variations in soil CO2 fluxes under a winter wheat-summer maize cropping system in the North China Plain

Incorporation of crop residues into topsoil significantly increases soil CO2 fluxes, with deep soil carbon being more vulnerable to this treatment than surface soil carbon.

Response of water use efficiency and carbon emission to no-tillage and winter wheat genotypes in the North China Plain.

No-tillage practices reduce CO2 emissions and water consumption in winter wheat, but a combination of no-tillage with Tainong 18 genotype can improve soil carbon emissions and water use efficiency.