Emissions of CH4 and CO2 from double rice cropping systems under varying tillage and seeding methods

Li, Chengfang; Zhang, Zhi-Sheng; Guo, Lijin; Cai, Mingli; Cao, Cougui

doi:10.1016/j.atmosenv.2013.08.027

Cited by 91 publications

(36 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The soil fluxes were measured within 2 h, between 9:00 and 11:00 am, which was considered a representative time for the daily average by Lou et al (2003). Each soil CO 2 flux was determined every 20 s for 180 s (Li et al, 2013). Three measurements were obtained from each plot on each sampling day, and each CO 2 flux measurement from a plot was the average of three individual measurements.…”

Section: Co 2 Measurementmentioning

confidence: 99%

See 1 more Smart Citation

Effects of water-saving irrigation practices and drought resistant rice variety on greenhouse gas emissions from a no-till paddy in the central lowlands of China

Tian

et al. 2015

Science of The Total Environment

Self Cite

215

114

View full text Add to dashboard Cite

Section: Co 2 Measurementmentioning

confidence: 99%

“…The static chamber-gas chromatograph method was adopted to determine CH 4 and N 2 O emissions (Li et al, 2013). Before the gas was sampled, two steel rings were placed in the middle of the bed in each plot.…”

Section: Ch 4 and N 2 O Measurementsmentioning

confidence: 99%

Effects of water-saving irrigation practices and drought resistant rice variety on greenhouse gas emissions from a no-till paddy in the central lowlands of China

Tian

et al. 2015

Science of The Total Environment

Self Cite

215

114

View full text Add to dashboard Cite

“…In this study, soil CO 2 fluxes peaked at the tillering stage (Figure 2), because of the increased substrates derived from root exudation and microbial decomposition of the remaining residues from previous crops (Li et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…The differences in soil CO 2 emissions between NT and conventional flat intensive tillage have been well assessed in dry lands and paddy fields (Patiño-Zúñiga et al, 2009;Li et al, 2013). However, relatively few studies investigated the differences in soil CO 2 emissions between RNT and FNT (Patiño-Zúñiga et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…For the RNT treatment, these base collars were placed on the ridges. The detailed measurement of CO 2 fluxes was described in our previous study (Li et al, 2013). Each soil CO 2 fluxes was determined every 20 s for 180 s. Three measurements were obtained at each position on each sampling day, and measurement of soil respiration rate at a position was the average of three individual measurements.…”

Section: Co 2 Measurementmentioning

confidence: 99%

See 1 more Smart Citation

Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China

Guo

Zhang

et al. 2015

J. Soil Sci. Plant Nutr.

View full text Add to dashboard Cite

Differences in soil CO 2 emissions between no-tillage (NT) and conventional intensive tillage have been well assessed in paddy fields, but few studies evaluate the effects of different NT modes on soil CO 2 emissions. Therefore, a field experiment was conducted to assess paddy soil CO 2 flux as affected by different NT modes [ridge cultivation with NT (RNT) and conventional flat cultivation with NT (FNT)] and its influencing factors during the 2012-2014 rice growing seasons in central China. Soil CO 2 fluxes were determined by a LI-8100A soil CO 2 flux system. The mean soil CO 2 fluxes on the ridges in the RNT treatment increased by 49%, 52% and 35% compared with those on the flat land in the FNT treatment in 2012, 2013 and 2014, respectively. Cumulative CO 2 emissions ranged from 1042 g m -2 to 1489 g m -2 from the RNT treatment, and from 724 g m -2 to 1016 g m -2 for the FNT treatment. Moreover, soil CO 2 its emissions were significantly correlated with dissolved organic C, aboveground biomass and root biomass. Therefore, our results suggesting that annual rice-fallowoilseed rape rotation should be considered to assess the effects of tillage systems on soil CO 2 emission.

show abstract

Water‐use efficiency and greenhouse gas emissions of rice affected by water saving and nitrogen reduction

Shi

Cai²,

Sun

et al. 2021

Agronomy Journal

View full text Add to dashboard Cite

We investigated the effects of reduced irrigation and N application, using green manure and rice straw, on the water-use efficiency (WUE) and greenhouse gas (GHG) emissions of machine-transplanted rice (Oryza sativa L.) to provide theoretical and technical guidance for water and N management in double-cropping rice. Field trials were conducted from 2014 to 2016 using two irrigation methods (flood irrigation, W0; intermittent irrigation, W1) and three N application methods (no nitrogen application, N0; chemical nitrogen constant application, N1; chemical nitrogen reduction combined with green fertilizer and straw, N2). Methane (CH 4 ) and nitrous oxide (N 2 O) emissions, water consumption, and grain yield were compared for the different treatment measures. Under the same N fertilizer management, intermittent irrigation reduced cumulative emissions of CH 4 of early and late season rice by 14.54-37.37% and 16.70-52.25%, respectively, whereas N 2 O emissions increased by 12.50-35.29% and 23.08-34.09%, compared with flood irrigation. Under identical irrigation conditions, the cumulative CH 4 and N 2 O emissions of early and late rice were N2 > N1 > N0. Compared to W0N1 treatment, W1N2 decreased the annual average water consumption by 4.40 and 5.53% for early and late rice, whereas yield and WUE increased by 4.27 and 3.98% and 9.54 and 9.71%, respectively. In addition, the annual global warming potential and greenhouse gas intensity of double-cropped rice increased by 47.62 and 41.77%, respectively. The incorporation of green manure and rice straw with reduced N fertilizer application using intermittent irrigation in double rice cropping systems reduced water consumption and increased grain yield but also increased GHG emissions.

show abstract

Emissions of CH4 and CO2 from double rice cropping systems under varying tillage and seeding methods

Cited by 91 publications

References 29 publications

Effects of water-saving irrigation practices and drought resistant rice variety on greenhouse gas emissions from a no-till paddy in the central lowlands of China

Effects of water-saving irrigation practices and drought resistant rice variety on greenhouse gas emissions from a no-till paddy in the central lowlands of China

Effects of different no-tillage modes on soil CO2 fluxes from paddy fields in central China

Water‐use efficiency and greenhouse gas emissions of rice affected by water saving and nitrogen reduction

Contact Info

Product

Resources

About