Methane and nitrous oxide emissions from paddy field as affected by water-saving irrigation

Sung-Bum, Yang; Peng, Shizhang; Xu, Junzeng; Luo, Yufeng; Li, Daoxi

doi:10.1016/j.pce.2011.08.020

Cited by 103 publications

(45 citation statements)

References 31 publications

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“…Jiang et al (2003) reported a 60-90% decrease in GWP with intermittent irrigation compared to permanent flooding. Carbon dioxide equivalents of CH 4 and N 2 O emissions from rice fields during the rice growing period under controlled irrigation were reduced by 61.4% compared, with those from flooding irrigation (Yang et al, 2012). Nie et al (2011) estimated 9.4-13.9% higher yield of rice under intermittent irrigation than that under CF irrigation in Northeast China, and the increase in yield was mainly through significant increase in effective panicles per plant.…”

Section: Land Management and Ghg Emissionsmentioning

confidence: 99%

Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture

Nayak

Sætnan

Cheng

et al. 2015

Agriculture, Ecosystems & Environment

169

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Agriculture accounts for approximately 11% of China?s national greenhouse gas (GHG) emissions. Through adoption of region-specific best management practices, Chinese farmers can contribute to emission reduction while maintaining food security for its large population (>1300 Million). This paper presents the outcome of a bottom?up assessment to quantify technical potential of mitigation measures for Chinese agriculture using meta-analysis of data from 240 publications for cropland, 67 publications for grassland and 139 publications for livestock, and provides the reference scenario for the cost analysis of identified mitigation measures. Management options with greatest mitigation potential for rice, or rice-based cropping systems are conservation tillage, controlled irrigation; replacement of urea with ammonium sulphate, nitrogen (N) inhibitor application, reduced N fertilizer application, integrated rice-fish-duck farming and biochar application. A 15% reduction in current average synthetic N fertilizer application for rice in China i.e., 231 kg N ha?1, would result in 12% decrease in direct soil nitrous oxide (N2O) emissions. Combined application of chemical and organic fertilizer, conservation tillage, biochar application and reduced N application are possible measures that can reduce overall GHG emissions from upland cropping systems. Conventional fertilizer inputs for greenhouse vegetables are more than 2?8 times the optimal crop nutrient demand. A 20?40% reduction in N fertilizer application to vegetable crops can reduce N2O emissions by 32?121%, while not negatively impacting the yield. One of the most important mitigation measures for agricultural grasslands could be conversion of low yielding cropland, particularly on slopes, to shrub land or grassland, which is also a promising option to decrease soil erosion. In addition, grazing exclusion and reduced grazing intensity can increase SOC sequestration and decrease overall emissions while improving the largely degraded grasslands. For livestock production, where poor quality forage is commonly fed, improving grazing management and diet quality can reduce methane (CH4) emissions by 11% and 5%, on average. Dietary supplements can reduce CH4 emissions further, with lipids (15% reduction) and tannins or saponins (11% reduction) showing the greatest potential. We also suggest the most economically cost-effective mitigation measures, drawing on related work on the construction of marginal abatement cost curves for the sector.authorsversionPeer reviewe

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Section: Land Management and Ghg Emissionsmentioning

confidence: 99%

Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture

Nayak

Sætnan

Cheng

et al. 2015

Agriculture, Ecosystems & Environment

169

View full text Add to dashboard Cite

show abstract

“…Table III. Similar water saving irrigation practice in rice paddy field studied by Yang [7] in China had shown that the paddy field with water-saving irrigation method had effectively reduced 66.7% of methane emission compared to flooding irrigation paddy fields. The study of Minamikawa [8] showed that during the drainage of paddy fields, the methane emission remained low and there was significant increase of methane flux after drainage.…”

Section: A Emission Rate Of Methane At Different Growth Stages Of Pamentioning

confidence: 86%

“…The study of Minamikawa [8] showed that during the drainage of paddy fields, the methane emission remained low and there was significant increase of methane flux after drainage. Based on Table III, the average range of methane emission rate detected in both Plot A and Plot B, located at Sik, Kedah Malaysia was relatively high compared to China [7] and Japan [10]. This might due to the climate condition occurred in Malaysia, which is consistently hot and humid weather compared to Japan and China.…”

Section: A Emission Rate Of Methane At Different Growth Stages Of Pamentioning

confidence: 94%

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Methane Emission and Quantification from Flooded and Non-Flooded Paddy Field at Kedah Malaysia

Lo¹,

Lim²,

Ng³

et al. 2016

IJESD

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Abstract-In order to quantify the methane emission from paddy fields with different irrigation methods and to study the potential of using the alternate flooding strategy in suppressing the methane emission, field experiments were conducted in Nestlé Rice Experimental Station located in Sik area, Kedah, Malaysia. Closed-chamber method was used in this research study. By employing transparent chambers, methane gas was sampled from two paddy field plots with different irrigation methods. The methane gas was collected at the paddy plots and analyzed for its concentration. It was done continuously for 84 days after seeding stage and stopped before the ripening stage of paddy. The similar increasing trend of methane emission was observed from each paddy field plot from the tillering stage till flowering stage of paddy. However, the methane emission rate from non-flooded plot with the water saving irrigation method was found relatively low compared to the flooded plot.

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“…Water management of farmland is an effective measure to reduce methane emission from paddy fields (Hussain et al, 2015). Yang et al (2012) reported that CH 4 emission was decreased by 79 % in rice field under controlled irrigation as compared with traditional flooded rice and global warming potential (GWP) of controlled irrigation was far less (67%) than traditional flooded rice. This result can be explained that the rice field in controlled irrigation came into a no-water layer management from the tillering stage to cause the release of stored methane.…”

Section: Ch 4 Emission Rule In Growing Season On Black Soil Rice Fielmentioning

confidence: 99%

Seasonal changes of methane emission on black soil rice field in cold region and its DNDC simulation

Zhang

Lin

2016

IJEE

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Methane (CH 4 ) emission from black soil rice field has obvious contribution on the greenhouse effect, however, scare investigations was done on the valuable issue. Static chamber method with DNDC simulation is a novel method to study greenhouse gases in rice field. The seasonal changes of methane emission were studied and simulated in a controlled and flooding irrigation by means of field-fixed position test. The results showed that irrigation patterns of methane emission peak has obvious difference, and total methane emission amount in growing season in controlled irrigation mode was about 47%, which was lower than that in flooding irrigation mode. The verification result showed the DNDC model may well describe the methane emission of black soil rice field in cold region. Therefore, controlled irrigation is an effective irrigation mode in reducing CH 4 emission from rice field and the DNDC model may be a powerful tool for assessing CH 4 emission quantities of black soil rice fields in cold region.

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Methane and nitrous oxide emissions from paddy field as affected by water-saving irrigation

Cited by 103 publications

References 31 publications

Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture

Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture

Methane Emission and Quantification from Flooded and Non-Flooded Paddy Field at Kedah Malaysia

Seasonal changes of methane emission on black soil rice field in cold region and its DNDC simulation

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