Methods for measuring N<sub>2</sub>O flux from water surface and N<sub>2</sub>O dissolved in water from agricultural land

Minami, Keiichiro; Fukushi, Sadao

doi:10.1080/00380768.1984.10434716

Cited by 52 publications

(20 citation statements)

References 22 publications

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“…It is suggested that N 2 O produced in the soil would immediately dissolve in the existing water. In fact, Minami and Fukushi (1984) reported that N 2 O concentration in flood water was in the range between 0.65 and 10.4 lg l -1 . Thus, flood water and percolating water can act as an effective trap for N 2 O emitting from soil to the atmosphere.…”

Section: Seasonal Variation Of N 2 O Emissionmentioning

confidence: 96%

Nitrous oxide emission measurement with acetylene inhibition method in paddy fields under flood conditions

Iida

Deb

Kharbuja

2007

Paddy Water Environ

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Nitrous oxide (N 2 O) emission from flooded rice paddy fields was continuously measured by the closed chamber method at an experimental plot in Thailand for a whole cultivation period. To characterize the N 2 O emission with regard to the denitrification N loss, the C 2 H 2 inhibition method was applied. Flood water on the soil greatly suppressed the N 2 O emission. The N 2 O emission was mitigated considerably by even a thin film of the flood water. The overall average N 2 O emissions under flood conditions for one crop season (83 days) at the control site and the C 2 H 2 treated site were 10.3 and 11.8 lg N m -2 h -1 , respectively. The N 2 O emission from the C 2 H 2 treated site was consistently higher than that from the control site and the N 2 O emission from both sites followed the same diurnal and seasonal variation pattern, indicating the effect of denitrification inhibition by the supplied C 2 H 2 . The N 2 O emission enhanced along with temperature increase when NO 3 -N concentration in the soil water was above 0.4 mg N l -1 and soil temperature was above 24°C, suggesting specific temperature influence over the emission.The increase in NO 3 -N concentration and temperature in the soil affected only the N 2 O emission while the difference in the emission at the C 2 H 2 treated site and the control site was not so much affected. It was suggested that most of the actively produced N 2 O under higher NO 3 -N concentration and temperature would likely to quickly emit to the atmosphere rather than to undergo further reduction to N 2 .

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Section: Seasonal Variation Of N 2 O Emissionmentioning

confidence: 96%

Nitrous oxide emission measurement with acetylene inhibition method in paddy fields under flood conditions

Iida

Deb

Kharbuja

2007

Paddy Water Environ

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“…In the results of Minami and Fukushi (1984), Bowden and Bormann (1986), Minami and Ohsawa (1990), and Ueda et al (1993), degassing was observed from drainage waters that contained the super-saturated dissolved gases after exposure to the atmosphere by pouring into an open ditch or seepage. For example, Bowden and Bormann (1986) reported that the concentration of dissolved Np decreased remarkably (lower than 50% at the sweep, at least) at 0-30 m from the sweep.…”

Section: Methodsmentioning

confidence: 99%

“…It has been reported that soil air contains a considerably higher concentration of NzO than ambient air (e.g., Heincke and Kaupenjoharm 1999), and NzO in soil air is directly emitted to the atmosphere and dissolved into the soil solution based on Henry's law. The direct N 2 0 emission from agricultural soils to the atmosphere was considered to be a major source of atmospheric N 2 0 (lPCC 1992), although the importance of indirect NzO emission has also been recognized (e.g., Dowdell et al 1979;Minami and Fukushi 1984;Bowden and Bormann 1986;Minami and Ohsawa 1990;Veda et al 1993). IPCC (l996b) proposed guidelines for national greenhouse gas inventories, in which degassing of super-saturated NzO in the subsurface water or ground water after discharge to the ground surface was considered to be one of the important indirect NzO emissions from N used in agriculture.…”

mentioning

confidence: 99%

Dissolved N₂O, CH₄, and CO₂emissions from subsurface-drainage in a structured clay soil cultivated with onion in Central Hokkaido, Japan

Sawamoto

Kusa

et al. 2003

Soil Science and Plant Nutrition

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“…Data on phosphorus and nitrogen in different field aquatic bodies would be used to inform efforts at water environmental protection and prevention of agricultural non-point pollution. However, most research on phosphorus and nitrogen has been focused on agricultural upland soils (Bowden et al 1992;Ueda et al 1993), and information is sparse for paddy field (Minami and Fukushi 1984;Minami and Ohsawa 1990;Hasegawa et al 2000) and especially rare for the paddy field aquatic environment (Hasegawa et al 2000). Therefore, the objective of the present study was to study water pollution by nitrogen and phosphorus in rural rice growing areas, and to analyze impact factors on nitrogen and phosphorus pollution in the Taihu Lake region.…”

Section: Introductionmentioning

confidence: 97%

Seasonal changes in the concentrations of nitrogen and phosphorus in farmland drainage and groundwater of the Taihu Lake region of China

Chen

Fei

Chen

et al. 2009

Environ Monit Assess

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To reduce the harmful effects of irrigated agriculture on the environment, the evaluation of alternative irrigation water management practices is essential. The contents of total-phosphorus, nitrate nitrogen, and ammonium nitrogen in rural aquatic bodies typical of the Taihu Lake region (Yixing, Wangzhuang, and Xinzhuang) were determined during 2 years. The results showed that the concentrations of nitrogen and phosphorus during the rainy season were higher than in other months. The concentration of ammonium nitrogen in farmland drainage was higher than that of nitrate nitrogen. Ammonium nitrogen and nitrate nitrogen were the main pollution sources in rural groundwater. However, the pollution by ammonium nitrogen was worse than nitrate nitrogen. The annual average values of ammonium nitrogen in Yixing and Wangzhuang were 1.596 and 2.103 mg L(-1); with maximum values of 5.782 and 5.441 mg L(-1), respectively, exceeding the lower limit for type V water quality by a factor of 10. Concentrations of nitrate nitrogen in groundwater in Xinzhuang from May to September exceeded the limit value (10 mg L(-1)) for drinking water prescribed by the World Health Organization. Therefore, this groundwater was not suitable to drink. In Taihu Lake, the average concentration of phosphorus over 2 years was 0.492 mg L(-1) and pollution by phosphorus in Taihu Lake was worse than other farmland drainage because of the trend of total-phosphorus accumulation. In addition, the average concentrations of nitrate nitrogen and ammonium nitrogen in Taihu Lake were 2.152 and 2.885 mg L(-1), respectively over 2 years, indicating that the water in the Taihu Lake is constantly in danger of eutrophication. Because of the transformation of ammonium nitrogen to nitrate nitrogen, there was a connection between the concentrations of ammonium nitrogen in farmland drainage and nitrate nitrogen in groundwater. There was also a significant positive linear correlation between the concentrations of ammonium nitrogen in farmland drainage and in shallow groundwater.

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Methods for measuring N₂O flux from water surface and N₂O dissolved in water from agricultural land

Cited by 52 publications

References 22 publications

Nitrous oxide emission measurement with acetylene inhibition method in paddy fields under flood conditions

Nitrous oxide emission measurement with acetylene inhibition method in paddy fields under flood conditions

Dissolved N₂O, CH₄, and CO₂emissions from subsurface-drainage in a structured clay soil cultivated with onion in Central Hokkaido, Japan

Seasonal changes in the concentrations of nitrogen and phosphorus in farmland drainage and groundwater of the Taihu Lake region of China

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Methods for measuring N2O flux from water surface and N2O dissolved in water from agricultural land

Cited by 52 publications

References 22 publications

Nitrous oxide emission measurement with acetylene inhibition method in paddy fields under flood conditions

Nitrous oxide emission measurement with acetylene inhibition method in paddy fields under flood conditions

Dissolved N2O, CH4, and CO2emissions from subsurface-drainage in a structured clay soil cultivated with onion in Central Hokkaido, Japan

Seasonal changes in the concentrations of nitrogen and phosphorus in farmland drainage and groundwater of the Taihu Lake region of China

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Methods for measuring N₂O flux from water surface and N₂O dissolved in water from agricultural land

Dissolved N₂O, CH₄, and CO₂emissions from subsurface-drainage in a structured clay soil cultivated with onion in Central Hokkaido, Japan