Effect of tillage and water management on GHG emissions from Mediterranean rice growing ecosystems

Fangueiro, David; Becerra, Daniel; Albarrán, Ángel; Peña, David; Sánchez-Llerena, Javier; Nunes, José Rato; López‐Piñeiro, Antonio

doi:10.1016/j.atmosenv.2016.11.020

Cited by 53 publications

(41 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the average CO 2 emissions significantly increased (53%) under sprinkler irrigation systems than in the flood irrigation under tillage. The sprinkler irrigation system was a water-saving strategy, which uses only 700 mm of irrigated water during the growing season while the flood irrigation treatments utilized 2300 mm of irrigated water [68]. This finding was supported by Tang et al [83] who found that under tillage, either 1-yr tillage or 57-yr old tillage, intermittent irrigation significantly increases mean CO 2 emissions up to 27% compared to continuous flooding.…”

Section: Effects Of Irrigation On Co 2 Emissionsmentioning

confidence: 81%

“…Tillage also played a major role in increasing CO 2 emissions. A study done by Fangueiro et al [68] in Spain did not find significant differences in CO 2 emissions from flood versus sprinkler irrigation when paddy was grown under no-tillage conditions. However, the average CO 2 emissions significantly increased (53%) under sprinkler irrigation systems than in the flood irrigation under tillage.…”

Section: Effects Of Irrigation On Co 2 Emissionsmentioning

confidence: 83%

“…Under drip irrigation, larger soil CH 4 uptake was observed than in furrow-irrigated fields (−2.92 kg CH 4 ha −1 under furrow irrigation versus −8.87 kg CH 4 ha −1 under drip-irrigation) [59]. Similarly, CH 4 emissions reduced up to 350 kg CH 4 ha −1 in a loam soil in Spain when sprinkler irrigation was applied to the paddy field instead of flood irrigation [68]. In summary, CH 4 emissions were lowered (Table 1) in reduced or intermittent irrigation treatments compared to emissions from high or continuous flood irrigation treatments.…”

Section: Effects Of Irrigation On Ch 4 Emissionsmentioning

confidence: 96%

“…Some studies show that reduced irrigation generally leads to a decrease in N 2 O emissions, while others showed contrasting findings. For example, a study performed by Fangueiro et al [68] in a loam soil in Spain examined the interaction of tillage and reduced irrigation on N 2 O emissions from rice fields. Under no-till management, they showed that the average N 2 O emissions from a sprinkler-irrigated paddy field were 6.03 kg N 2 O ha −1 , 57% less than fields that were under continuous flood irrigation (14.24 kg N 2 O ha −1 ).…”

Section: Effects Of Irrigation On N 2 O Emissionsmentioning

confidence: 99%

See 3 more Smart Citations

Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies

et al. 2020

View full text Add to dashboard Cite

Irrigation practices can greatly influence greenhouse gas (GHG) emissions because of their control on soil microbial activity and substrate supply. However, the effects of different irrigation management practices, such as flood irrigations versus reduced volume methods, including drip and sprinkler irrigation, on GHG emissions are still poorly understood. Therefore, this review was performed to investigate the effects of different irrigation management strategies on the emission of nitrous oxide (N2O), carbon dioxide (CO2), and methane (CH4) by synthesizing existing research that either directly or indirectly examined the effects of at least two irrigation rates on GHG emissions within a single field-based study. Out of thirty-two articles selected for review, reduced irrigation was found to be effective in lowering the rate of CH4 emissions, while flood irrigation had the highest CH4 emission. The rate of CO2 emission increased mostly under low irrigation, and the effect of irrigation strategies on N2O emissions were inconsistent, though a majority of studies reported low N2O emissions in continuously flooded field treatments. The global warming potential (GWP) demonstrated that reduced or water-saving irrigation strategies have the potential to decrease the effect of GHG emissions. In general, GWP was higher for the field that was continuously flooded. The major finding from this review is that optimizing irrigation may help to reduce CH4 emissions and net GWP. However, more field research assessing the effect of varying rates of irrigation on the emission of GHGs from the agricultural field is warranted.

show abstract

Section: Effects Of Irrigation On Co 2 Emissionsmentioning

confidence: 81%

Section: Effects Of Irrigation On Co 2 Emissionsmentioning

confidence: 83%

Section: Effects Of Irrigation On Ch 4 Emissionsmentioning

confidence: 96%

Section: Effects Of Irrigation On N 2 O Emissionsmentioning

confidence: 99%

See 2 more Smart Citations

Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies

et al. 2020

View full text Add to dashboard Cite

show abstract

“…These results suggested that aerobic cultivation was more conducive to water saving, although making better use of precipitation, and reducing irrigation and evaporation [9]. Moreover, aerobic rice cultivation has also been known to reduce the emissions of greenhouse gases, including methane, vapor, and carbon dioxide, because of the environmentally-friendly irrigation practice as compared with traditional rice farming [32][33][34].…”

Section: Discussionmentioning

confidence: 99%

Grain Yield and Resource Use Efficiencies of Upland and Lowland Rice Cultivars under Aerobic Cultivation

2019

View full text Add to dashboard Cite

Aerobic rice has the potential to replace transplanted flooded rice, as rice cultivation is seriously threatened by environmental and social factors. Although the recently released upland rice cultivars have higher drought tolerance, low yield potential of these cultivars makes them less feasible for high-yielding rice planting regions under aerobic cultivation. In this study, typical lowland rice cultivars (Huanghuazhan and Yangliangyou6) were evaluated for grain yield and resource use efficiencies under aerobic cultivation as compared with upland rice cultivars (Lvhan1 and Hanyou3). Averaged across different years, lowland rice cultivars recorded 26.9%, 14.6%, and 26.6% higher grain yield, water productivity, and nitrogen use efficiency for grain production (NUEg), respectively, as compared with upland cultivars. The higher grain yield of lowland rice cultivars under aerobic cultivation was mainly attributed to the higher aboveground biomass and the spikelet number per panicle, along with a higher harvest index and panicle number per unit area with respect to upland rice cultivars. During the entire growing season in aerobic cultivation, rainfall accounted for 60% to 85% of the total water use, which indicates that lowland rice cultivars could make better use of the rainfall because of a longer growth duration and a higher growth potential. In summary, this study suggests that with appropriate irrigation, lowland rice cultivars could grow well and furnish higher yield than the current upland rice cultivars under aerobic cultivation.

show abstract

Soil greenhouse gas emissions under enhanced efficiency and urea nitrogen fertilizer from Australian irrigated aerobic rice production

Webb,

Champness,

Hornbuckle

et al. 2024

Agrosystems Geosci & Env

View full text Add to dashboard Cite

Aerobic rice production offers a promising solution to improve water use efficiency and reduce methane (CH4) emissions by minimizing water inundation. However, alternate water‐saving methods for rice cultivation can lead to “trade‐off” emissions of nitrous oxide (N2O). A field experiment was conducted over one season measuring soil‐derived greenhouse gas emissions in irrigated aerobic rice (Oryza sativa L.) under different N fertilizer management at a rate of 220 kg N ha−1, including a nil treatment (“control”); slow release (180 days) polymer‐coated urea (“N180”); banded urea applied upfront (“urea”); and three applications of broadcast urea (“urea‐split”). The N180 treatment reduced soil N2O emissions compared with urea (p < 0.001), with mean cumulative N2O emissions of 4.36 ± 1.07 kg N ha−1 and 27.9 ± 5.70 kg N ha−1, respectively. Soil N2O fluxes were high, reaching up to 1916 and 2900 µg N m2 h−1 after urea application and irrigation/rain events, and were similar to other irrigated crops grown on heavy textured soils. Fertilizer N management had no effect on soil CH4 emissions, which were negligible across all treatments ranging from 1.28 to 2.75 kg C ha−1 over the growing season. Cumulative soil carbon dioxide emissions ranged from 1936 to 3071 kg C ha−1 and were greatest in N180. This case study provides the first evidence in Australia that enhanced efficiency nitrogen fertilizer can substantially reduce N2O emissions from soils in an aerobic rice system. Our findings reinforce the CH4 mitigation potential of water saving rice approaches and demonstrate the need to consider N fertilizer management to control N2O emissions.

show abstract

Effect of tillage and water management on GHG emissions from Mediterranean rice growing ecosystems

Cited by 53 publications

References 42 publications

Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies

Irrigation and Greenhouse Gas Emissions: A Review of Field-Based Studies

Grain Yield and Resource Use Efficiencies of Upland and Lowland Rice Cultivars under Aerobic Cultivation

Soil greenhouse gas emissions under enhanced efficiency and urea nitrogen fertilizer from Australian irrigated aerobic rice production

Contact Info

Product

Resources

About