Characteristics of nitrous oxide emissions and the affecting factors from vegetable fields on the North China Plain

Yan, Hongliang; Xie, Li Yang; Guo, Liping; Fan, Jingchun; Diao, Tiantian; Ma, Lin; He, Zuyong; Lin, Erda

doi:10.1016/j.jenvman.2014.06.004

Cited by 24 publications

(15 citation statements)

References 30 publications

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“…), ranging from 0.044 to 0.17 mg N m −2 h −1 . These values were similar to the results from other studies in China (Table ) . The N 2 O emissions could be primarily attributed to the denitrification of high amounts of residual nitrate in the solar greenhouses .…”

Section: Discussionsupporting

confidence: 90%

“…). These values were much higher than those from the SG greenhouses and other studies (Table , with an average of 0.40 mg N m −2 h −1 ) . In addition, the total N 2 O emissions from the SG‐CM and SG‐SM greenhouses were more than 10 times higher than those from the SG greenhouses (Table ).…”

Section: Discussionmentioning

confidence: 56%

“…Previous studies have shown that N 2 O emissions from agricultural systems are affected by many management practices, such as N fertilizer and manure applications, tillage, temperature, and soil moisture . However, in solar greenhouses, many specific practices are used including polythene film mulching, fertigation, frequent irrigation, high air and soil temperatures, high chemical N fertilizers and organic manure inputs, etc., which are very different from those of open‐air vegetable fields.…”

Section: Introductionmentioning

confidence: 99%

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Nitrous oxide emissions from solar greenhouses during summer fallow in the Loess Plateau of China

Liu

Qiu

2015

Greenhouse Gases

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In Northern China, vegetables are usually grown in solar greenhouses using intensive fertilization and cultivation, which produces significant greenhouse gas (GHG) emissions to the atmosphere. In this study, the nitrous oxide (N2O) emissions from 12 solar greenhouses with different fertilization practices (without manure application (SG); with chicken (SG‐CM) or swine (SG‐SM) manure application) were measured in the southern Loess Plateau of China during the summer fallow (35–61 days) in 2013 and 2014. The daily N2O fluxes varied over the ranges of 0.002–0.041, 0.014–12.58, and 0.005–8.41 mg N m−2 h−1 with averages of 0.037, 0.81, and 1.70 mg N m−2 h−1 in the SG, SG‐CM, and SG‐SM greenhouses, respectively, and the total N2O emissions were 1.17, 12.0, and 16.0 kg N ha−1, respectively. Significantly high peak N2O emissions were observed at the beginning of the summer fallow and after manure application, accounting for more than 80% of the total N2O emissions. The management practices of polythene removal, greenhouse enclosure for a week, and tillage also significantly increased the N2O daily fluxes and total emissions. Linear regression analyses showed that soil moisture and manure application were the main factors controlling the N2O emissions during summer fallow, followed by the residual mineral N in the soil. The results indicated that solar greenhouses cause high N2O emissions during summer fallow and farmers should use appropriate measures to mitigate these emissions. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

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Nitrous oxide emissions from solar greenhouses during summer fallow in the Loess Plateau of China

Liu

Qiu

2015

Greenhouse Gases

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“…The croplands in the NCP are being treated with increasing amounts of N fertilizer, which can cause increased emissions of N 2 O, NO and NH 3 (Zou et al, 2005;Zhang et al, 2011). Many studies have mainly focused on the gaseous loss of N 2 O from different types of N fertilizer (Cai et al, 2002;Ding et al, 2007;Zhang et al, 2012;Wang et al, 2013), whereas there are few reports about the effect of DCD on N 2 O emission from agricultural fields in this region (Ding et al, 2011;Li et al, 2013;Yan et al, 2014). To our knowledge, there is no investigation on the effects of DCD on NO and NH 3 emissions from the soils in the NCP.…”

Section: Introductionmentioning

confidence: 99%

Impact of dicyandiamide on emissions of nitrous oxide, nitric oxide and ammonia from agricultural field in the North China Plain

Zhou

Zhang

Tian

et al. 2016

Journal of Environmental Sciences

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“…Vegetable crops cover about 1.35 million hm -2 in Guangdong Province ranking it fourth in the entire country, The Pearl River Delta region serves as the main vegetable production area, accounting for 37.6% of the total vegetable growing area in Guangdong Province; this region produces 32.75 million tons of vegetables per year [6–7]. Vegetable fields, a land use type with highly intensive use as well as a high rate of nitrogen application and frequent irrigation, are one of the most abundant land cover types that contribute greatly to greenhouse gas emissions in China [8]. Leaching and N x O emission are the primary N loss pathways in vegetable fields, especially when high N application rates are used[9].…”

Section: Introductionmentioning

confidence: 99%

Effects of nitrogen application rate, nitrogen synergist and biochar on nitrous oxide emissions from vegetable field in south China

et al. 2017

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Globally, vegetable fields are the primary source of greenhouse gas emissions. A closed-chamber method together with gas chromatography was used to measure the fluxes of nitrous oxide (N2O) emissions in typical vegetable fields planted with four vegetables sequentially over time in the same field: endive, lettuce, cabbage and sweet corn. Results showed that N2O fluxes occurred in pulses with the N2O emission peak varying greatly among the crops. In addition, N2O emissions were linearly associated with the nitrogen (N) application rate (r = 0.8878, n = 16). Excessive fertilizer N application resulted in N loss through nitrous oxide gas emitted from the vegetable fields. Compared with a conventional fertilization (N2) treatment, the cumulative N2O emissions decreased significantly in the growing seasons of four plant species from an nitrogen synergist (a nitrification inhibitor, dicyandiamide and biochar treatments by 34.6% and 40.8%, respectively. However, the effects of biochar on reducing N2O emissions became more obvious than that of dicyandiamide over time. The yield-scaled N2O emissions in consecutive growing seasons for four species increased with an increase in the N fertilizer application rate, and with continuous application of N fertilizer. This was especially true for the high N fertilizer treatment that resulted in a risk of yield-scaled N2O emissions. Generally, the additions of dicyandiamide and biochar significantly decreased yield-scaled N2O-N emissions by an average of 45.9% and 45.7%, respectively, compared with N2 treatment from the consecutive four vegetable seasons. The results demonstrated that the addition of dicyandiamide or biochar in combination with application of a rational amount of N could provide the best strategy for the reduction of greenhouse gas emissions in vegetable field in south China.

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Characteristics of nitrous oxide emissions and the affecting factors from vegetable fields on the North China Plain

Cited by 24 publications

References 30 publications

Nitrous oxide emissions from solar greenhouses during summer fallow in the Loess Plateau of China

Nitrous oxide emissions from solar greenhouses during summer fallow in the Loess Plateau of China

Impact of dicyandiamide on emissions of nitrous oxide, nitric oxide and ammonia from agricultural field in the North China Plain

Effects of nitrogen application rate, nitrogen synergist and biochar on nitrous oxide emissions from vegetable field in south China

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