Influence of irrigation frequency on greenhouse gases emission from a paddy soil

Maris, Stefania Codruta; Teira-Esmatges, Maria Rosa; Catalá, M. M.

doi:10.1007/s10333-015-0490-2

Cited by 24 publications

(11 citation statements)

References 61 publications

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“…Though these studies demonstrate that decreasing the total volume of water applied to soils generally leads to lower N 2 O emissions in irrigated fields, the frequency of irrigation can greatly determine whether N 2 O emissions increase or decrease upon implementing deficit irrigation. For example, increase in N 2 O emissions (up to 4.5 kg N 2 O ha −1 ) was observed in studies that applied intermittent irrigation as compared to traditional irrigation or continuous flooding [65,72,77,83,[86][87][88]91]. Similarly, a number of studies demonstrated that continuous flooding leads to lower N 2 O emissions as compared to water-saving irrigation treatments in studies done in China, South Korea, and the USA [57,64,71,76,84,85].…”

Section: Effects Of Irrigation On N 2 O Emissionsmentioning

confidence: 98%

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

et al. 2020

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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.

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Section: Effects Of Irrigation On N 2 O Emissionsmentioning

confidence: 98%

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

et al. 2020

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“…Small reductions in the time during which rice paddies are inundated can substantially reduce methane emissions. However, switching from anaerobic to aerobic production can create the conditions that support nitrification and denitrification, such that nitrous oxide emissions can increase with the change in water management strategy [174,175]. The degree to which methane emissions are reduced and nitrous oxide emissions are increased is largely an empirical issue, which is influenced by soil characteristics and the history of soil and water management in a given location [176].…”

Section: Intermittent Drainage Vs Continuous Floodingmentioning

confidence: 99%

Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production

Wichelns

2016

Water

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Rice production is susceptible to damage from the changes in temperature and rainfall patterns, and in the frequency of major storm events that will accompany climate change. Deltaic areas, in which millions of farmers cultivate from one to three crops of rice per year, are susceptible also to the impacts of a rising sea level, submergence during major storm events, and saline intrusion into groundwater and surface water resources. In this paper, I review the current state of knowledge regarding the potential impacts of climate change on rice production and I describe adaptation measures that involve soil and water management. In many areas, farmers will need to modify crop choices, crop calendars, and soil and water management practices as they adapt to climate change. Adaptation measures at the local, regional, and international levels also will be helpful in moderating the potential impacts of climate change on aggregate rice production and on household food security in many countries. Some of the changes in soil and water management and other production practices that will be implemented in response to climate change also will reduce methane generation and release from rice fields. Some of the measures also will reduce the uptake of arsenic in rice plants, thus addressing an important public health issue in portions of South and Southeast Asia. Where feasible, replacing continuously flooded rice production with some form of aerobic rice production, will contribute to achieving adaptation objectives, while also reducing global warming potential and minimizing the risk of negative health impacts due to consumption of arsenic contaminated rice.

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“…Existing literature shows that GWP can be reduced through intermittent drainage of paddy fields (Maris et al 2016;Win et al 2015;Sharma et al 2016) but no NECB has been delineated by others in combination with cover crop biomass incorporation rates and intermittent drainage conditions. Our findings indicate that we can not only reduce greenhouse gas emission from paddy soil, but also can maintain soil health for better crop production sustainably.…”

Section: Continuous Floodingmentioning

confidence: 99%

Intermittent drainage in paddy soil: ecosystem carbon budget and global warming potential

Haque

Biswas

Kim

et al. 2016

Paddy Water Environ

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Intermittent drainage of rice fields alters soil redox potential and contributes to the reduction of CH 4 emission and thus may reduce net global warming potential (GWP) during rice cultivation. Incorporation of green biomass helps maintaining soil organic matter, but may increase CH 4 emission. We investigated net ecosystem carbon budget (NECB) and net GWP under two water management regimes-continuous flooding and intermittent drainage-having four biomass incorporation levels (0, 3, 6 and 12 Mg ha -1 ). Water management and biomass incorporation level demonstrated significant (P \ 0.05) interaction effect on the NECB and GWP. Intermittent drainage decreased the NECB by ca. 6-46 % than continuous flooding under same rates of cover crop biomass (CCB) incorporation. Moreover, intermittent drainage reduced seasonal CH 4 -C fluxes by ca. 54-58 % and net GWP by 35-58 % compared to continuous flooding. There was also no significant reduction in rice yield because of intermittent drainage under similar CCB. This implies that incorporation of 3 Mg ha -1 CCB and intermittent drainage could be a good option for reducing net GWP and higher grain yield.

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Influence of irrigation frequency on greenhouse gases emission from a paddy soil

Cited by 24 publications

References 61 publications

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

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

Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production

Intermittent drainage in paddy soil: ecosystem carbon budget and global warming potential

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