Methane and nitrous oxide emission characteristics of high-yielding rice field

Wang, Zi-Hao; Wang, Liuhang; He, Liang; Peng, Ting; Xia, Gui-Ping; Zhang, Jing; Zhao, Quanzhi

doi:10.1007/s11356-020-11641-y

Cited by 11 publications

(5 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CH 4 and N 2 O emissions in all treatments peaked at the rice tillering stage (Figures 2 and 3), which was consistent with the results of other paddy field experiments [21,33,34]. The emission characteristics suggested that GHG mitigation strategies in paddy fields should be focused on this stage.…”

Section: Optimizing the Substitution Ratios Of Urea With CMV To Impro...supporting

confidence: 88%

Optimizing the Incorporated Amount of Chinese Milk Vetch (Astragalus sinicus L.) to Improve Rice Productivity without Increasing CH4 and N2O Emissions

Zhou,

Jiang,

Wang

et al. 2023

Agronomy

View full text Add to dashboard Cite

Chinese milk vetch (CMV) is a leguminous green manure that is commonly cultivated in paddy fields and can partially substitute synthetic nitrogen fertilizer. However, the impacts of incorporating CMV on CH4 and N2O emissions are still a subject of controversy. Therefore, we conducted a field experiment over three years to investigate emissions under different substitution ratios: urea only (CF); incorporating a traditional amount of CMV (MV); and with incorporation ratios of 1/3 (MV1/3), 2/3 (MV2/3), and 4/3 (MV4/3) of MV for partial urea substitution. Compared with CF, MV2/3, MV, and MV 4/3 resulted in increased yields. MV and MV4/3 reduced N2O emissions but increased CH4 emissions by 28.61% and 85.60% (2019), 32.38% and 103.19% (2020), and 28.86% and 102.98% (2021), respectively, resulting in an overall increase in total global warming potential (except for MV in 2021). MV2/3 exhibited a low greenhouse gas intensity value ranging from 0.46 to 0.47. Partial least-squares-path model results showed that CH4 and N2O emissions were influenced by substitution ratios, which indirectly regulated the gene abundances of mcrA and nosZ. Overall, the impact of CMV on CH4 and N2O emissions was determined by substitution ratios. MV2/3, which involved partial substitution of synthetic N fertilizer with 15.0 t ha−1 of CMV, resulted in improved rice productivity without increasing CH4 and N2O emissions, making it a recommended approach in the study area.

show abstract

Section: Optimizing the Substitution Ratios Of Urea With CMV To Impro...supporting

confidence: 88%

Optimizing the Incorporated Amount of Chinese Milk Vetch (Astragalus sinicus L.) to Improve Rice Productivity without Increasing CH4 and N2O Emissions

Zhou,

Jiang,

Wang

et al. 2023

Agronomy

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown that water-saving irrigation technology not only inhibits CH 4 production but also promotes CH 4 oxidation from flooded rice paddies [8,9]. Other factors influencing CH 4 and N 2 O emissions include rice variety [10,11], tillage and fertilization management [12][13][14][15], and soil physicochemistry [16]. For instance, altering agricultural management practices, such as implementing water-saving irrigation and optimizing fertilizer management, can mitigate CH 4 and N 2 O emissions from rice paddies.…”

Section: Introductionmentioning

confidence: 99%

Ecological and Economic Benefits of Greenhouse Gas Emission Reduction Strategies in Rice Production: A Case Study of the Southern Rice Propagation Base in Hainan Province

Zhang,

Bi,

Wang

et al. 2024

Agronomy

View full text Add to dashboard Cite

Developing tailored emission reduction strategies and estimating their potential is crucial for achieving low-carbon rice production in a specific region, as well as for advancing China’s dual carbon goals in the agricultural sector. By utilizing water-saving and drought-resistant rice (WDR) with enhanced water and nitrogen utilization efficiency, the mitigation strategies were constructed for rice production systems, and their potential for emission reduction was estimated in the southern rice propagation base of Hainan Province. This study revealed that the implementation of a reduction strategy, which involves dry direct seeding and dry cultivation, combined with a 53% reduction in nitrogen fertilizer, can effectively synergize the mitigation of methane (CH4) and nitrous oxide (N2O) emissions from rice paddies. Compared with traditional flooded rice cultivation, this integrated approach exhibits an impressive potential for reducing net greenhouse gas (GHG) emissions by 97% while simultaneously doubling economic benefits. Moreover, when combined with plastic film mulching, the strategy not only sustains rice yields but also achieves a remarkable emission reduction of 92%, leading to a fourfold increase in economic benefits. Our study provides a comprehensive low-carbon sustainable development strategy for rice production in the southern rice propagation base of Hainan Province and offers valuable insights for researching GHG emissions in other regions or crops. These emission reduction pathways and the assessment method could contribute to the realization of low-carbon agriculture.

show abstract

“…11 Although these techniques can partially reduce CH 4 emissions, they may not always be adaptable to local climates and may cause reduced yields and increased N 2 O emissions. 12 Artificial chemical and physical technologies for degrading these relatively stable gases, such as CH 4 adsorption zeolite sorbents followed by catalytic destruction 13 and photocatalysis of N 2 O, 14 are impractical due to unsustainable costs and the process scales required to treat the global atmosphere. However, soil bacteria provide natural sinks for these two gases.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Agricultural practices to avoid CH 4 emissions from rice fields include alternate wetting and drying, addition of potassium or ferric iron, and drip irrigation . Although these techniques can partially reduce CH 4 emissions, they may not always be adaptable to local climates and may cause reduced yields and increased N 2 O emissions …”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Engineered Plants for Control of Atmospheric Nitrous Oxide and Methane by Modification of the Mitochondrial Proteome

Strand

Zhang

Flury

2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Agricultural soils are important sources of two potent greenhouse gases, nitrous oxide (N2O) and methane (CH4), the atmospheric levels of which are steadily increasing. Increases in N2O also threaten the earth’s protective ozone layer. Only two reactions are known to degrade N2O and CH4 without requiring high temperatures and high energy inputs: those catalyzed by bacterial N2O reductase (N2OR) and methane monooxygenase (MMO). Plants genetically engineered to constitutively express N2OR and MMO could potentially remove both gases from soil and atmosphere. Although the cytosolic expression of these genes in plants has proven unsuccessful, new biotechnologies allow introduction of protein complexes into eukaryotic mitochondria, a platform that shares many similarities to the membranes and intermembrane space of bacteria. Based on these theoretical considerations, we set out to model the potential impact of N2OR- and MMO-transformed plants on emissions and uptake of N2O and CH4. Our calculations suggest that such plants could prevent 50% of soil emissions of N2O and CH4 and take up substantial N2O from the atmosphere. If planted globally, N2OR- and MMO-engineered crop plants could potentially stop increases in N2O and CH4 in the atmosphere and slow increases in global warming, providing a strong incentive for research into this biotechnology.

show abstract

Methane and nitrous oxide emission characteristics of high-yielding rice field

Cited by 11 publications

References 28 publications

Optimizing the Incorporated Amount of Chinese Milk Vetch (Astragalus sinicus L.) to Improve Rice Productivity without Increasing CH4 and N2O Emissions

Optimizing the Incorporated Amount of Chinese Milk Vetch (Astragalus sinicus L.) to Improve Rice Productivity without Increasing CH4 and N2O Emissions

Ecological and Economic Benefits of Greenhouse Gas Emission Reduction Strategies in Rice Production: A Case Study of the Southern Rice Propagation Base in Hainan Province

Theoretical Analysis of Engineered Plants for Control of Atmospheric Nitrous Oxide and Methane by Modification of the Mitochondrial Proteome

Contact Info

Product

Resources

About