Temperature effects on ethylene and methane production from temperate forest soils

Xu, Xingkai; Inubushi, Kazuyuki

doi:10.1007/s11434-009-0005-x

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…The concentrations of gases were corrected for solubility in water by using published values of the Bunsen absorption coefficient [ 29 ]. The rates of methane production and consumption were calculated by linear regression of increases and decreases, respectively, in CH 4 concentrations against incubation time, using at least three consecutive measurements with a regression coefficient ( r 2 ) of >0.9, and expressed in mg CH 4 -C per kg of oven-dry soil per day [ 30 , 31 ]. The total cumulative CH 4 production and CH 4 consumption were determined in each sample by the difference in the headspace CH 4 concentration at the beginning and end of the assay period [ 32 ].…”

Section: Methodsmentioning

confidence: 99%

Methane Production and Consumption in Loess Soil at Different Slope Position

Brzezińska

Nosalewicz

Pasztelan

et al. 2012

The Scientific World Journal

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Methane (CH4) production and consumption and soil respiration in loess soils collected from summit (Top), back slope (Middle), and slope bottom (Bottom) positions were assessed in laboratory incubations. The CH4 production potential was determined under conditions which can occur in the field (relatively short-term flooding periods with initially ambient O2 concentrations), and the CH4 oxidation potential was estimated in wet soils enriched with CH4. None of the soils tested in this study emitted a significant amount of CH4. In fact, the Middle and Bottom soils, especially at the depth of 20–40 cm, were a consistent sink of methane. Soils collected at different slope positions significantly differed in their methanogenic, methanotrophic, and respiration activities. In comparison with the Top position (as reference soil), methane production and both CO2 production and O2 consumption under flooding were significantly stimulated in the soil from the Middle slope position (P < 0.001), while they were reduced in the Bottom soil (not significantly, by 6 to 57%). All upper soils (0–20 cm) completely oxidized the added methane (5 kPa) during 9–11 days of incubation. Soils collected from the 20–40 cm at the Middle and Bottom slope positions, however, consumed significantly more CH4 than the Top soil (P < 0.001).

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Section: Methodsmentioning

confidence: 99%

Methane Production and Consumption in Loess Soil at Different Slope Position

Brzezińska

Nosalewicz

Pasztelan

et al. 2012

The Scientific World Journal

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“…These quantities were equal to 252.3 and 96.3 μM C 2 H 2 per flask with ca. Xu and Inubushi (2009b) observed that under the oxic conditions at 5-15°C, the consumption of acetylene by forest soils (Andisols) at an initial concentration of ca. For comparison, Topp and Germon (1986) reported an uptake of 825 μM C 2 H 2 in 50-g samples of brown soil, and Culbertson et al (1981) as much as 4 mmol C 2 H 2 per 25 ml of estuarine sediment slurry.…”

Section: Discussionmentioning

confidence: 99%

How much oxygen is needed for acetylene to be consumed in soil?

et al. 2011

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Purpose Acetylene (C 2 H 2 ) is employed for the quantification of important biological processes such as nitrogen fixation, nitrous oxide reduction, ammonium and methane oxidation, and methanogenesis. Although acetylene is not a natural product, the ability of bacteria to grow on C 2 H 2 is a phenomenon common to soils and sediments. Our experiment was designed to study the modification of CO 2 production, O 2 uptake and microbial biomass (C mic ) in soil in response to the consumption of added acetylene. Materials and methods Two soils (peat-muck and Eutric Cambisol) were incubated under well aerated (60% water holding capacity [WHC]) or flooded conditions, and enriched with C 2 H 2 in the range 0.1-10 kPa (initially, 0.434-63.4 mmol C 2 H 2 kg −1 ) at a constant temperature of 20°C. Gases were measured chromatographically, while C mic was measured by the physiological SIR (substrate-induced respiration) method based on the initial response of microorganisms to glucose amendment. We used a simple calculation of net CO 2 , net O 2 and net C mic (as differences between amended and not amended soils) to estimate the contribution of C 2 H 2 to the total respiration and microbial growth during the incubation. Results and discussion Peat-muck soil consumed more C 2 H 2 than Cambisol (maximum 54.03 vs. 19.25 mmol kg −1 , p<0.001). Acetylene utilization was faster and larger in flooded than in wet soils (16.2 and 7.81 mmol kg −1 , respectively, p<0.05), and followed the tendency observed for C mic . Depending on C 2 H 2 enrichment, air-water conditions, and soil tested, both reduction and stimulation of measured activities were observed in response to acetylene consumption. Low C 2 H 2 uptake, especially in Cambisol incubated at 60% WHC, resulted in the reduction of soil respiration and biomass (by 1-29%). Large C 2 H 2 consumption in flooded soils stimulated CO 2 production, O 2 uptake and C mic , even by 78%, 72% and 43%, respectively. Net CO 2 , net O 2 , and net C mic were linearly positively related to the quantity of consumed C 2 H 2 (p<0.001).Conclusions Acetylene utilization was a combined effect of initial C 2 H 2 , soil properties, and air-water status. The amount of consumed C 2 H 2 was the highest in flooded peat-muck soil enriched with 10 kPa, and lowest in Cambisol at 60% WHC with 0.1 kPa C 2 H 2 . Consumption of 1 mol acetylene induced production of 0.5 mol CO 2 , and uptake of 0.4 mol O 2 . Low acetylene consumption (<6 mmol kg −1 ) resulted in reduction of both soil respiration and microbial biomass.

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Spotting ethylene in forest soils—What influences the occurrence of the phytohormone?

Lang,

Schneider,

Puhlmann

et al. 2023

Biol Fertil Soils

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Due to the rapid microbial degradation, ethylene (ethene; C2H4) detection in most soils is difficult. The knowledge about factors favoring the occurrence of C2H4 is mainly based on laboratory experiments which are not necessarily representative for real field conditions in forest soils. We report results from a total of 24 measuring plots in southwest Germany and more than 50,000 gas samples, including long-term forest monitoring sites and other study sites involving liming, artificial soil compaction, and temporary waterlogging. Many of the patterns and influencing factors identified in the laboratory were confirmed. In well-aerated forest soils, C2H4 was detected in 1.3% of the gas samples. C2H4 detection was higher at oxygen (O2) concentrations below 10% in the soil. The effect was positively correlated with bulk density in compacted soils and CO2, CH4, and N2O concentrations—factors that indicate reduced microbial activity and thus also facilitate the detection of C2H4. It could be detected 3.5 times more often in spruce than in beech stands, indicating that plant species plays a role and was not found to follow any distinct spatial or temporal pattern with the exception of seemingly random spatio-temporal clusters of root-born C2H4 near large roots of spruce trees. The long observation period and large dataset of this field study allowed valuable insights into C2H4 occurrence in forest soils under natural conditions supporting the theory that the plant hormone C2H4 is produced as a warning for anaerobic soil areas that are limiting root growth.

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Temperature effects on ethylene and methane production from temperate forest soils

Cited by 3 publications

References 19 publications

Methane Production and Consumption in Loess Soil at Different Slope Position

Methane Production and Consumption in Loess Soil at Different Slope Position

How much oxygen is needed for acetylene to be consumed in soil?

Spotting ethylene in forest soils—What influences the occurrence of the phytohormone?

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