Nitrous oxide and methane emissions from different soil suspensions: effect of soil redox status

Yu, Kewei; Wang, Z. P.; Vermoesen, Annick; Patrick, W. H.; Cleemput, Oswald Van

doi:10.1007/s003740100350

Cited by 89 publications

(5 citation statements)

References 24 publications

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“…The fluxes were somewhat higher when the redox value was above 249 mv at the SFS and between −232 and 228 mv at the LFS. Similarly, many previous studies have reported higher N 2 O emissions in flood-affected wetlands across a wide range of redox potentials (−100 to 430 mv) (Yu et al, 2001;Wlodarczyk et al, 2003;Morse et al, 2012). Marín-Muñiz et al (2015) found an optimum range of 100-360 mv for the reduction of nitrate to N 2 O from a coastal wetland, whereas Morse et al (2012) reported values of 89 and 5.3 mv from rarely and intermittently flooded areas, respectively, as the conditions conducive for N 2 O production.…”

Section: Effect Of Redox Potential On Soil Co 2 and N 2 O Fluxessupporting

confidence: 59%

Flooding-related increases in CO2 and N2O emissions from a temperate coastal grassland ecosystem

Gebremichael

Orr

2017

Biogeosciences

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Abstract. Given their increasing trend in Europe, an understanding of the role that flooding events play in carbon (C) and nitrogen (N) cycling and greenhouse gas (GHG) emissions will be important for improved assessments of local and regional GHG budgets. This study presents the results of an analysis of the CO 2 and N 2 O fluxes from a coastal grassland ecosystem affected by episodic flooding that was of either a relatively short (SFS) or long (LFS) duration. Compared to the SFS, the annual CO 2 and N 2 O emissions were 1.4 and 1.3 times higher at the LFS, respectively. Mean CO 2 emissions during the period of standing water were 144 ± 18.18 and 111 ± 9.51 mg CO 2 -C m −2 h −1 , respectively, for the LFS and SFS sites. During the growing season, when there was no standing water, the CO 2 emissions were significantly larger from the LFS (244 ± 24.88 mg CO 2 -C m −2 h −1 ) than the SFS (183 ± 14.90 mg CO 2 -C m −2 h −1 ). Fluxes of N 2 O ranged from −0.37 to 0.65 mg N 2 O-N m −2 h −1 at the LFS and from −0.50 to 0.55 mg N 2 O-N m −2 h −1 at the SFS, with the larger emissions associated with the presence of standing water at the LFS but during the growing season at the SFS. Overall, soil temperature and moisture were identified as the main drivers of the seasonal changes in CO 2 fluxes, but neither adequately explained the variations in N 2 O fluxes. Analysis of total C, N, microbial biomass and Q 10 values indicated that the higher CO 2 emissions from the LFS were linked to the flooding-associated influx of nutrients and alterations in soil microbial populations. These results demonstrate that annual CO 2 and N 2 O emissions can be higher in longer-term flooded sites that receive significant amounts of nutrients, although this may depend on the restriction of diffusional limitations due to the presence of standing water to periods of the year when the potential for gaseous emissions are low.

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Section: Effect Of Redox Potential On Soil Co 2 and N 2 O Fluxessupporting

confidence: 59%

Flooding-related increases in CO2 and N2O emissions from a temperate coastal grassland ecosystem

Gebremichael

Orr

2017

Biogeosciences

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“…Cumulative and daily N 2 O emissions were not satisfactory at these field sites (d = 0.01-0.70, EF < 0; and d = 0.07-0.14, EF < 0). The soil moisture status strongly influences the N 2 O emissions because of its effect on soil redox potential (Eh) according to previous research (Yu et al 2001). In the DNDC model, N 2 O is produced and consumed through the nitrification/denitrification process, which is directly regulated by the soil Eh, DOC and available N concentration (Giltrap et al 2010).…”

Section: Discussionmentioning

confidence: 98%

Greenhouse gas mitigation potential under different rice-crop rotation systems: from site experiment to model evaluation

Zhang

Sun

et al. 2019

Clean Techn Environ Policy

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Crop rotation systems in fields could improve crop production and indirectly affect carbon and nitrogen dynamics due to multiple fertilizer applications. Therefore, it is important to evaluate the impact of these crop rotation systems on greenhouse gas (GHG) emissions. Field experiments were conducted with three different rotation systems, and the DeNitrification-DeComposition (DNDC) model was applied to monitor and estimate crop yields and GHG emissions during three rice-upland crop rotational periods (from June 2013 to May 2016). Low methane (CH 4 ) and nitrous oxide (N 2 O) emissions were observed in rice-Chinese milk vetch and single rice rotation systems. The simulated crop yields fit the observed data very well (d > 0.80, EF > 0.70) after the model was calibrated by adjusting the crop parameters. The model-simulated daily and annual CH 4 emissions agreed well with the field measurements (d > 0.7, EF = 0.41-0.98). The simulated N 2 O (d = 0.01-0.70, EF < 0 or close to 0) of accumulated emissions and daily fluxes (d = 0.07-0.14, EF < 0) showed low levels of accuracy with field observations. The GHG emissions in Shanghai rice paddy were different under various rotation systems, with the following order: single rice rotation system < rice-Chinese milk vetch rotation system < baseline rotation system of Shanghai paddy < 1/3 (rice-Chinese milk vetch + single rice + rice-winter wheat rice-winter) rotation system < rice-winter wheat rotation system under the same nitrogen loading. The DNDC was able to predict rice yields and GHG emissions under different crop rotation systems. The results provide positive reliable indications that crop rotation systems have the potential to reduce GHG emissions; e.g., the rice-Chinese milk vetch rotation system could mitigate the CH 4 and N 2 O emissions.

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“…Although agricultural soils can be an important CH 4 sink, tillage and other agronomic practices interact with soil heterogeneity to differentially affect field aeration status of microsites and therefore CH 4 generation and oxidation (Hutsch, 2001; Thangarajan et al., 2013). Unlike CO 2 or N 2 O, strongly reducing conditions are required for CH 4 formation (Yu et al., 2001). In many soils, net CH 4 fluxes may be close to zero (Perala et al., 2006), complicating attempts to isolate individual nutrient management practice effects on CH 4 fluxes.…”

Section: Introductionmentioning

confidence: 99%

Impacts of low‐disturbance dairy manure incorporation on ammonia and greenhouse gas fluxes in a corn silage–winter rye cover crop system

et al. 2021

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Manure and fertilizer applications contribute to greenhouse gas (GHG) and ammonia (NH 3 ) emissions. Losses of NH 3 and nitrous oxide (N 2 O) are an economic loss of nitrogen (N) to farms, and methane (CH 4 ), N 2 O, and carbon dioxide (CO 2 ) are important GHGs. Few studies have examined the effects of low-disturbance manure incorporation (LDMI) on both NH 3 and GHG fluxes. Here, NH 3 , N 2 O, CH 4 , and CO 2 fluxes in corn (Zea mays L.)-winter rye (Secale cereale L.) field plots were measured under fall LDMI (aerator/band, coulter injection, strip-till, sweep inject, surface/broadcast application, broadcast-disk) and spring-applied urea (134 kg N ha -1 ) treatments from 2013 to 2015 in central Wisconsin. Whereas broadcast lost 35.5% of applied ammonium-N (NH 4 -N) as NH 3 -N, strip-till inject and coulter inject lost 0.11 and 4.5% of applied NH 4 -N as NH 3 , respectively. Mean N 2 O loss ranged from 2.7 to 3.6% of applied total N for LDMI, compared with 4.2% for urea and 2.6% for broadcast. Overall, greater CO 2 fluxes for manure treatments contributed to larger cumulative GHG fluxes compared with fertilizer N. There were few significant treatment effects for CH 4 (P > .10); however, fluxes were significantly correlated with changes in soil moisture and temperature. Results indicate that LDMI treatments significantly decreased NH 3 loss but led to modest increases in N 2 O and CO 2 fluxes compared with broadcast and broadcast-disk manure incorporation. Tradeoffs between N conservation versus increased GHG fluxes for LDMI and other methods should be incorporated into nutrient management tools as part of assessing agri-environmental farm impacts.

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Nitrous oxide and methane emissions from different soil suspensions: effect of soil redox status

Cited by 89 publications

References 24 publications

Flooding-related increases in CO<sub>2</sub> and N<sub>2</sub>O emissions from a temperate coastal grassland ecosystem

Flooding-related increases in CO<sub>2</sub> and N<sub>2</sub>O emissions from a temperate coastal grassland ecosystem

Greenhouse gas mitigation potential under different rice-crop rotation systems: from site experiment to model evaluation

Impacts of low‐disturbance dairy manure incorporation on ammonia and greenhouse gas fluxes in a corn silage–winter rye cover crop system

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Nitrous oxide and methane emissions from different soil suspensions: effect of soil redox status

Cited by 89 publications

References 24 publications

Flooding-related increases in CO&lt;sub&gt;2&lt;/sub&gt; and N&lt;sub&gt;2&lt;/sub&gt;O emissions from a temperate coastal grassland ecosystem

Flooding-related increases in CO&lt;sub&gt;2&lt;/sub&gt; and N&lt;sub&gt;2&lt;/sub&gt;O emissions from a temperate coastal grassland ecosystem

Greenhouse gas mitigation potential under different rice-crop rotation systems: from site experiment to model evaluation

Impacts of low‐disturbance dairy manure incorporation on ammonia and greenhouse gas fluxes in a corn silage–winter rye cover crop system

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Flooding-related increases in CO<sub>2</sub> and N<sub>2</sub>O emissions from a temperate coastal grassland ecosystem

Flooding-related increases in CO<sub>2</sub> and N<sub>2</sub>O emissions from a temperate coastal grassland ecosystem