DOI: 10.1016/j.atmosenv.2018.02.050
Scopus记录号: 2-s2.0-85044001877
论文题名: Ammonia volatilization and atmospheric N deposition following straw and urea application from a rice-wheat rotation in southeastern China
作者: Sun L ; , Wu Z ; , Ma Y ; , Liu Y ; , Xiong Z
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 181 起始页码: 97
结束页码: 105
语种: 英语
英文关键词: Ammonia volatilization
; Nitrogen deposition
; Nitrogen use efficiency
; Rice-wheat rotation
; Straw
Scopus关键词: Efficiency
; Metabolism
; Nitrogen
; Nitrogen compounds
; Straw
; Urea
; Ammonia volatilization
; Nitrogen deposition
; Nitrogen-use efficiency
; Rice-wheat rotations
; Seasonal variation
; Southeastern china
; Straw incorporations
; Terrestrial ecosystems
; Ammonia
; ammonium compound
; fertilizer application
; nitrogen cycle
; nutrient use efficiency
; rice
; seasonal variation
; straw
; terrestrial ecosystem
; volatilization
; wheat
; China
; Triticum aestivum
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Ammonia is a vital component of the nitrogen (N) cycle of terrestrial ecosystems in terms of volatilization and deposition. Here, a field experiment was undertaken to simultaneously investigate the effects of rice straw and urea incorporation on ammonia volatilization, atmospheric N deposition, yields and agronomic nitrogen use efficiency (NUE) under a rice-wheat system in China. The experiment involved four treatments: control (0 N, 0 straw), NS0 (250 kg N ha−1 season−1, 0 straw), NS1 (250 kg N ha−1 season−1, 3 t ha−1 yr−1 straw), and NS2 (250 kg N ha−1 season−1, 6 t ha−1 yr−1 straw) in the rice-wheat annual rotation system. The results indicated that the NS0, NS1 and NS2 treatments emitted cumulative ammonia of 14.0%, 16.4%, and 19.2%, respectively in the rice season and 7.6%, 11.1%, and 12.3%, respectively in the wheat season among the total urea-N application. Compared to the NS0 treatment, the NS1 and NS2 treatments significantly increased the cumulative ammonia emissions by 15.5% (p < 0.05) and 33.5% (p < 0.05), respectively in the rice season and 39.9% (p < 0.05) and 53.1% (p < 0.05), respectively in the wheat season. There was no significant difference between the NS2 and NS1 treatments during the wheat season. The amount of NH4 +-N deposition accounted for 56.1% of the total inorganic N deposition during the whole rice-wheat system. The bulk NH4 +-N deposition during the period of fertilization contributed 73.9% and 5.7% to the total NH4 +-N deposition in the rice and wheat season, respectively. Overall, straw incorporation increased ammonia volatilization, not affecting the crop grain yield or NUE. The seasonal variation in NH4 +-N bulk deposition was closely related to N fertilizer application. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82934
Appears in Collections: 气候变化事实与影响
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作者单位: Jiangsu Key Laboratory of Agricultural Meteorology, College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, China; Jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China; State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China; College of Resources and Environmental Sciences, XingTai University, XingTai, China
Recommended Citation:
Sun L,, Wu Z,, Ma Y,et al. Ammonia volatilization and atmospheric N deposition following straw and urea application from a rice-wheat rotation in southeastern China[J]. Atmospheric Environment,2018-01-01,181