Mitigation of methane emissions from paddy fields by prolonging midseason drainage

Itoh, Masatoshi; Sudo, Shigeto; Mori, Shizuka; Saitō, Hiroshi; Yoshida, Takahiro; Shiratori, Yutaka; Suga, Shinobu; Yoshikawa, Nobuhisa; Suzue, Yasufumi; Mizukami, Hiroyuki; Mochida, Toshiyuki; Yagi, Kazuyuki

doi:10.1016/j.agee.2011.03.019

Cited by 124 publications

(98 citation statements)

References 15 publications

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“…The contribution of CH 4 to the GWP in this experiment (97%) is comparable to those observed in temperate climate area with relatively low N input (e.g., Itoh et al 2011). Our findings in this experiment have important implications for mitigation strategies in Indonesia.…”

Section: Ghg Emission Reduction Through Awdsupporting

confidence: 77%

Alternate wetting and drying reduces methane emission from a rice paddy in Central Java, Indonesia without yield loss

Setyanto¹,

Pramono

Adriany

et al. 2017

Soil Science and Plant Nutrition

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Water regimes play a central role in regulating methane (CH 4 ) and nitrous oxide (N 2 O) emissions from irrigated rice field. Alternate wetting and drying (AWD) is a possible option, but there is limited information on its feasibility under local environmental conditions, especially for tropical region. We therefore carried out a 3-year experiment in a paddy field in Central Java, Indonesia to investigate the feasibility of AWD in terms of rice productivity, greenhouse gas (GHG) emission, and water use both in wet and dry seasons (WS and DS). The treatments of water management were (1) continuous flooding (CF), (2) flooding every when surface water level naturally declines to 15 cm below the soil surface (AWD), and (3) site-specific AWD with different criteria of soil drying (AWDS) established to find out the optimum for GHG emission reduction. Gas flux measurement was conducted by a static closed chamber method. Rice growth was generally normal and the grain yield did not significantly differ among the three treatments both in WS and DS. AWD and AWDS significantly reduced the total water use (irrigation + rainfall) as compared to CF. As expected, the seasonal total CH 4 emission was significantly reduced by AWD and AWDS. On average, the CH 4 emissions under AWD and AWDS were 35 and 38%, respectively, smaller than those under CF. It should be noted that AWD and AWDS were effective even in WS due partly to the field location on inland, upland area that facilitates the drainage. The seasonal total N 2 O emission did not significantly differ among the treatments. The results indicate that AWD is a promising option to reduce GHG emission, as well as water use without sacrificing rice productivity in this field. ARTICLE HISTORY

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Section: Ghg Emission Reduction Through Awdsupporting

confidence: 77%

Alternate wetting and drying reduces methane emission from a rice paddy in Central Java, Indonesia without yield loss

Setyanto¹,

Pramono

Adriany

et al. 2017

Soil Science and Plant Nutrition

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“…Alternate wet-dry conditions delayed the onset of CH 4 emission as compared to continuously flooded plots. This pattern of a retarded initiation of CH 4 emission has also been observed in mid-season and multiple drainage treatments (Itoh et al, 2011;Towprayoon et al, 2005;Tyagi et al, 2010). This decrease can be ascribed to temporary soil aeration generated due to partial drying of the soil that in turn suppresses methanogenic activity and may increase aerobic methanotrophic activity.…”

Section: Irrigation Water Productivity Total Water Productivity -----supporting

confidence: 61%

“…In CF30, soil redox potential was above + 300 mV before flooding and then decreased sharply to a level of -100 mV within about 30 days after flooding (Figure 4). Grain yield due to either the lack of organic amendment which has been reported to enhance CH 4 emission or to inadequate conditions for anaerobic methanogenesis during the 30-day delayed flooding due to posterior non-flooded fallow conditions (Itoh et al, 2011;Watanabe et al, 1999;Zhang et al, 2011). Alternate wet-dry conditions delayed the onset of CH 4 emission as compared to continuously flooded plots.…”

Section: Irrigation Water Productivity Total Water Productivity -----mentioning

confidence: 99%

“…Water management is one of the most important tools for achieving high levels of production as well as a promising option for the mitigation of CH 4 . Changes in water management such as intermittent irrigation and mid-season drainage are effective options for the mitigation of CH 4 in rice fields (Hadi et al, 2010;Itoh et al, 2011;Jain et al, 2013;Minamikawa and Sakai, 2006;Tyagi et al, 2010;Yagi et al, 1997). However, these practices of alternate anaerobic and aerobic cycling can stimulate the emission of another GHG, nitrous oxide (N 2 O), via denitrification and nitrification, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…However, these practices of alternate anaerobic and aerobic cycling can stimulate the emission of another GHG, nitrous oxide (N 2 O), via denitrification and nitrification, respectively. Therefore, an optimum emission trade-off that minimizes emissions of both gases is highly desirable (Itoh et al, 2011;Zou et al, 2005). Furthermore, drainage systems are also important for conserving water and improving rice yields (Xu et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Yield-scaled global warming potential of two irrigation management systems in a highly productive rice system

Tarlera

Capurro

Irisarri

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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, 55 % lower compared to CF30, while no differences in nitrous oxide emissions were observed between treatments (p > 0.05). No yield differences between irrigation systems were observed in two of the rice seasons (p > 0.05) while AWDI promoted yield reduction in one of the seasons (p < 0.05). When rice yield and greenhouse gases (GHG) emissions were considered together, the AWDI irrigation system allowed for lower yield-scaled total global warming potential (GWP). Higher irrigation water productivity was achieved under AWDI in two of the three rice seasons. These findings suggest that AWDI could be an option for reducing GHG emissions and increasing irrigation water productivity. However, AWDI may compromise grain yield in certain years, reflecting the importance of the need for fine tuning of this irrigation strategy and an assessment of the overall tradeoff between relationships in order to promote its adoption by farmers.

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Seasonal and diurnal variations in net carbon dioxide flux throughout the year from soil in paddy field

et al. 2015

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In contrast to upland croplands, carbon dioxide (CO 2 ) emission from soils has rarely been investigated previously in fields with paddy rice cultivation. In this study, we hypothesized that CO 2 emission from paddy soils is suppressed to be a low level due the soil submergence for months for paddy rice cultivation and conducted a continuous measurement of net CO 2 flux from the soil/water surface of a paddy field throughout the year, including both the submerged and drained periods. The net CO 2 flux was generally near zero during the submerged period with paddy rice cultivation and showed a slight CO 2 influx in the daytime and efflux at nighttime, indicating dominance of photosynthetic CO 2 uptake and respiratory CO 2 release by aquatic weeds and algae in paddy water. The diurnal variations in net CO 2 flux and dissolved CO 2 concentration had negative correlations with the pH of paddy water. A remarkably high CO 2 efflux was observed during the period with intermittent drainage in summer. Unexpectedly, the cumulative CO 2 emissions throughout the year were not considerably lower than those reported in upland croplands ranging from 1309 to 2160 g CO 2 m À2 yr À1 , of which 41-48% was emitted from the first drainage in summer to the rice harvest in autumn. In summary, in this study, we revealed that CO 2 emission from soil in paddy fields is strictly suppressed during the submerged period, but considerably enhanced by the succeeding drainage, which may negate the suppressed CO 2 emission during the submerged period.

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Mitigation of methane emissions from paddy fields by prolonging midseason drainage

Cited by 124 publications

References 15 publications

Alternate wetting and drying reduces methane emission from a rice paddy in Central Java, Indonesia without yield loss

Alternate wetting and drying reduces methane emission from a rice paddy in Central Java, Indonesia without yield loss

Yield-scaled global warming potential of two irrigation management systems in a highly productive rice system

Seasonal and diurnal variations in net carbon dioxide flux throughout the year from soil in paddy field

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